From 57e6a032db70264ec394cbb8a2f327ad33705d76 Mon Sep 17 00:00:00 2001 From: LFC Date: Mon, 24 Apr 2023 10:38:45 +0800 Subject: [PATCH] feat: support "delete" in distributed mode (#28) --- go/greptime/v1/database.pb.go | 257 +- .../src/main/java/io/greptime/v1/Columns.java | 1475 ++- .../main/java/io/greptime/v1/Database.java | 8049 ++++------------- java/src/main/java/io/greptime/v1/Ddl.java | 2960 +++--- proto/greptime/v1/database.proto | 15 + 5 files changed, 3975 insertions(+), 8781 deletions(-) diff --git a/go/greptime/v1/database.pb.go b/go/greptime/v1/database.pb.go index ccccad8..515b68a 100644 --- a/go/greptime/v1/database.pb.go +++ b/go/greptime/v1/database.pb.go @@ -31,6 +31,7 @@ type GreptimeRequest struct { // *GreptimeRequest_Insert // *GreptimeRequest_Query // *GreptimeRequest_Ddl + // *GreptimeRequest_Delete Request isGreptimeRequest_Request `protobuf_oneof:"request"` } @@ -101,6 +102,13 @@ func (x *GreptimeRequest) GetDdl() *DdlRequest { return nil } +func (x *GreptimeRequest) GetDelete() *DeleteRequest { + if x, ok := x.GetRequest().(*GreptimeRequest_Delete); ok { + return x.Delete + } + return nil +} + type isGreptimeRequest_Request interface { isGreptimeRequest_Request() } @@ -117,12 +125,18 @@ type GreptimeRequest_Ddl struct { Ddl *DdlRequest `protobuf:"bytes,4,opt,name=ddl,proto3,oneof"` } +type GreptimeRequest_Delete struct { + Delete *DeleteRequest `protobuf:"bytes,5,opt,name=delete,proto3,oneof"` +} + func (*GreptimeRequest_Insert) isGreptimeRequest_Request() {} func (*GreptimeRequest_Query) isGreptimeRequest_Request() {} func (*GreptimeRequest_Ddl) isGreptimeRequest_Request() {} +func (*GreptimeRequest_Delete) isGreptimeRequest_Request() {} + type GreptimeResponse struct { state protoimpl.MessageState sizeCache protoimpl.SizeCache @@ -369,6 +383,81 @@ func (x *InsertRequest) GetRegionNumber() uint32 { return 0 } +type DeleteRequest struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + // The table name to delete from. Catalog name and schema name are in the `RequestHeader`. + TableName string `protobuf:"bytes,1,opt,name=table_name,json=tableName,proto3" json:"table_name,omitempty"` + // The region number of current delete request. + RegionNumber uint32 `protobuf:"varint,2,opt,name=region_number,json=regionNumber,proto3" json:"region_number,omitempty"` + // The data to delete, indexed by key columns. + KeyColumns []*Column `protobuf:"bytes,3,rep,name=key_columns,json=keyColumns,proto3" json:"key_columns,omitempty"` + // The row count of all columns above. + RowCount uint32 `protobuf:"varint,4,opt,name=row_count,json=rowCount,proto3" json:"row_count,omitempty"` +} + +func (x *DeleteRequest) Reset() { + *x = DeleteRequest{} + if protoimpl.UnsafeEnabled { + mi := &file_greptime_v1_database_proto_msgTypes[4] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *DeleteRequest) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*DeleteRequest) ProtoMessage() {} + +func (x *DeleteRequest) ProtoReflect() protoreflect.Message { + mi := &file_greptime_v1_database_proto_msgTypes[4] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use DeleteRequest.ProtoReflect.Descriptor instead. +func (*DeleteRequest) Descriptor() ([]byte, []int) { + return file_greptime_v1_database_proto_rawDescGZIP(), []int{4} +} + +func (x *DeleteRequest) GetTableName() string { + if x != nil { + return x.TableName + } + return "" +} + +func (x *DeleteRequest) GetRegionNumber() uint32 { + if x != nil { + return x.RegionNumber + } + return 0 +} + +func (x *DeleteRequest) GetKeyColumns() []*Column { + if x != nil { + return x.KeyColumns + } + return nil +} + +func (x *DeleteRequest) GetRowCount() uint32 { + if x != nil { + return x.RowCount + } + return 0 +} + var File_greptime_v1_database_proto protoreflect.FileDescriptor var file_greptime_v1_database_proto_rawDesc = []byte{ @@ -380,7 +469,7 @@ var file_greptime_v1_database_proto_rawDesc = []byte{ 0x6c, 0x75, 0x6d, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x16, 0x67, 0x72, 0x65, 0x70, 0x74, 0x69, 0x6d, 0x65, 0x2f, 0x76, 0x31, 0x2f, 0x70, 0x72, 0x6f, 0x6d, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x18, 0x67, 0x72, 0x65, 0x70, 0x74, 0x69, 0x6d, 0x65, 0x2f, 0x76, 0x31, 0x2f, - 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xe6, 0x01, 0x0a, + 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x9c, 0x02, 0x0a, 0x0f, 0x47, 0x72, 0x65, 0x70, 0x74, 0x69, 0x6d, 0x65, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x32, 0x0a, 0x06, 0x68, 0x65, 0x61, 0x64, 0x65, 0x72, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1a, 0x2e, 0x67, 0x72, 0x65, 0x70, 0x74, 0x69, 0x6d, 0x65, 0x2e, 0x76, 0x31, 0x2e, 0x52, @@ -394,54 +483,68 @@ var 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0x47, 0x72, 0x65, 0x70, 0x74, 0x69, 0x6d, 0x65, 0x52, 0x65, 0x73, + 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x28, 0x01, 0x42, 0x51, 0x0a, 0x0e, 0x69, 0x6f, 0x2e, 0x67, 0x72, + 0x65, 0x70, 0x74, 0x69, 0x6d, 0x65, 0x2e, 0x76, 0x31, 0x42, 0x08, 0x44, 0x61, 0x74, 0x61, 0x62, + 0x61, 0x73, 0x65, 0x5a, 0x35, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, + 0x47, 0x72, 0x65, 0x70, 0x74, 0x69, 0x6d, 0x65, 0x54, 0x65, 0x61, 0x6d, 0x2f, 0x67, 0x72, 0x65, + 0x70, 0x74, 0x69, 0x6d, 0x65, 0x2d, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x67, 0x6f, 0x2f, 0x67, + 0x72, 0x65, 0x70, 0x74, 0x69, 0x6d, 0x65, 0x2f, 0x76, 0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, + 0x6f, 0x33, } var ( @@ -456,37 +559,40 @@ func file_greptime_v1_database_proto_rawDescGZIP() []byte { return file_greptime_v1_database_proto_rawDescData } -var file_greptime_v1_database_proto_msgTypes = make([]protoimpl.MessageInfo, 4) +var file_greptime_v1_database_proto_msgTypes = make([]protoimpl.MessageInfo, 5) var file_greptime_v1_database_proto_goTypes = []interface{}{ (*GreptimeRequest)(nil), // 0: greptime.v1.GreptimeRequest (*GreptimeResponse)(nil), // 1: greptime.v1.GreptimeResponse (*QueryRequest)(nil), // 2: greptime.v1.QueryRequest (*InsertRequest)(nil), // 3: greptime.v1.InsertRequest - (*RequestHeader)(nil), // 4: greptime.v1.RequestHeader - (*DdlRequest)(nil), // 5: greptime.v1.DdlRequest - (*ResponseHeader)(nil), // 6: greptime.v1.ResponseHeader - (*AffectedRows)(nil), // 7: greptime.v1.AffectedRows - (*PromRangeQuery)(nil), // 8: greptime.v1.PromRangeQuery - (*Column)(nil), // 9: greptime.v1.Column + (*DeleteRequest)(nil), // 4: greptime.v1.DeleteRequest + (*RequestHeader)(nil), // 5: greptime.v1.RequestHeader + (*DdlRequest)(nil), // 6: greptime.v1.DdlRequest + (*ResponseHeader)(nil), // 7: greptime.v1.ResponseHeader + (*AffectedRows)(nil), // 8: greptime.v1.AffectedRows + (*PromRangeQuery)(nil), // 9: greptime.v1.PromRangeQuery + (*Column)(nil), // 10: greptime.v1.Column } var file_greptime_v1_database_proto_depIdxs = []int32{ - 4, // 0: greptime.v1.GreptimeRequest.header:type_name -> greptime.v1.RequestHeader + 5, // 0: greptime.v1.GreptimeRequest.header:type_name -> greptime.v1.RequestHeader 3, // 1: greptime.v1.GreptimeRequest.insert:type_name -> greptime.v1.InsertRequest 2, // 2: greptime.v1.GreptimeRequest.query:type_name -> greptime.v1.QueryRequest - 5, // 3: greptime.v1.GreptimeRequest.ddl:type_name -> greptime.v1.DdlRequest - 6, // 4: greptime.v1.GreptimeResponse.header:type_name -> greptime.v1.ResponseHeader - 7, // 5: greptime.v1.GreptimeResponse.affected_rows:type_name -> greptime.v1.AffectedRows - 8, // 6: greptime.v1.QueryRequest.prom_range_query:type_name -> greptime.v1.PromRangeQuery - 9, // 7: greptime.v1.InsertRequest.columns:type_name -> greptime.v1.Column - 0, // 8: greptime.v1.GreptimeDatabase.Handle:input_type -> greptime.v1.GreptimeRequest - 0, // 9: greptime.v1.GreptimeDatabase.HandleRequests:input_type -> greptime.v1.GreptimeRequest - 1, // 10: greptime.v1.GreptimeDatabase.Handle:output_type -> greptime.v1.GreptimeResponse - 1, // 11: greptime.v1.GreptimeDatabase.HandleRequests:output_type -> greptime.v1.GreptimeResponse - 10, // [10:12] is the sub-list for method output_type - 8, // [8:10] is the sub-list for method input_type - 8, // [8:8] is the sub-list for extension type_name - 8, // [8:8] is the sub-list for extension extendee - 0, // [0:8] is the sub-list for field type_name + 6, // 3: greptime.v1.GreptimeRequest.ddl:type_name -> greptime.v1.DdlRequest + 4, // 4: greptime.v1.GreptimeRequest.delete:type_name -> greptime.v1.DeleteRequest + 7, // 5: greptime.v1.GreptimeResponse.header:type_name -> greptime.v1.ResponseHeader + 8, // 6: greptime.v1.GreptimeResponse.affected_rows:type_name -> greptime.v1.AffectedRows + 9, // 7: greptime.v1.QueryRequest.prom_range_query:type_name -> greptime.v1.PromRangeQuery + 10, // 8: greptime.v1.InsertRequest.columns:type_name -> greptime.v1.Column + 10, // 9: greptime.v1.DeleteRequest.key_columns:type_name -> greptime.v1.Column + 0, // 10: greptime.v1.GreptimeDatabase.Handle:input_type -> greptime.v1.GreptimeRequest + 0, // 11: greptime.v1.GreptimeDatabase.HandleRequests:input_type -> greptime.v1.GreptimeRequest + 1, // 12: greptime.v1.GreptimeDatabase.Handle:output_type -> greptime.v1.GreptimeResponse + 1, // 13: greptime.v1.GreptimeDatabase.HandleRequests:output_type -> greptime.v1.GreptimeResponse + 12, // [12:14] is the sub-list for method output_type + 10, // [10:12] is the sub-list for method input_type + 10, // [10:10] is the sub-list for extension type_name + 10, // [10:10] is the sub-list for extension extendee + 0, // [0:10] is the sub-list for field type_name } func init() { file_greptime_v1_database_proto_init() } @@ -547,11 +653,24 @@ func file_greptime_v1_database_proto_init() { return nil } } + file_greptime_v1_database_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*DeleteRequest); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } } file_greptime_v1_database_proto_msgTypes[0].OneofWrappers = []interface{}{ (*GreptimeRequest_Insert)(nil), (*GreptimeRequest_Query)(nil), (*GreptimeRequest_Ddl)(nil), + (*GreptimeRequest_Delete)(nil), } file_greptime_v1_database_proto_msgTypes[1].OneofWrappers = []interface{}{ (*GreptimeResponse_AffectedRows)(nil), @@ -567,7 +686,7 @@ func file_greptime_v1_database_proto_init() { GoPackagePath: reflect.TypeOf(x{}).PkgPath(), RawDescriptor: file_greptime_v1_database_proto_rawDesc, NumEnums: 0, - NumMessages: 4, + NumMessages: 5, NumExtensions: 0, NumServices: 1, }, diff --git a/java/src/main/java/io/greptime/v1/Columns.java b/java/src/main/java/io/greptime/v1/Columns.java index c3f02f8..37cf1cb 100644 --- a/java/src/main/java/io/greptime/v1/Columns.java +++ b/java/src/main/java/io/greptime/v1/Columns.java @@ -408,79 +408,6 @@ public final class Columns { getUnknownFields() { return this.unknownFields; } - private Column( - com.google.protobuf.CodedInputStream input, - com.google.protobuf.ExtensionRegistryLite extensionRegistry) - throws com.google.protobuf.InvalidProtocolBufferException { - this(); - if (extensionRegistry == null) { - throw new java.lang.NullPointerException(); - } - com.google.protobuf.UnknownFieldSet.Builder unknownFields = - com.google.protobuf.UnknownFieldSet.newBuilder(); - try { - boolean done = false; - while (!done) { - int tag = input.readTag(); - switch (tag) { - case 0: - done = true; - break; - case 10: { - java.lang.String s = input.readStringRequireUtf8(); - - columnName_ = s; - break; - } - case 16: { - int rawValue = input.readEnum(); - - semanticType_ = rawValue; - break; - } - case 26: { - io.greptime.v1.Columns.Column.Values.Builder subBuilder = null; - if (values_ != null) { - subBuilder = values_.toBuilder(); - } - values_ = input.readMessage(io.greptime.v1.Columns.Column.Values.parser(), extensionRegistry); - if (subBuilder != null) { - subBuilder.mergeFrom(values_); - values_ = subBuilder.buildPartial(); - } - - break; - } - case 34: { - - nullMask_ = input.readBytes(); - break; - } - case 40: { - int rawValue = input.readEnum(); - - datatype_ = rawValue; - break; - } - default: { - if (!parseUnknownField( - input, unknownFields, extensionRegistry, tag)) { - done = true; - } - break; - } - } - } - } catch (com.google.protobuf.InvalidProtocolBufferException e) { - throw e.setUnfinishedMessage(this); - } catch (java.io.IOException e) { - throw new com.google.protobuf.InvalidProtocolBufferException( - e).setUnfinishedMessage(this); - } finally { - this.unknownFields = unknownFields.build(); - makeExtensionsImmutable(); - } - } public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() { return io.greptime.v1.Columns.internal_static_greptime_v1_Column_descriptor; @@ -992,475 +919,6 @@ public final class Columns { getUnknownFields() { return this.unknownFields; } - private Values( - com.google.protobuf.CodedInputStream input, - com.google.protobuf.ExtensionRegistryLite extensionRegistry) - throws com.google.protobuf.InvalidProtocolBufferException { - this(); - if (extensionRegistry == null) { - throw new java.lang.NullPointerException(); - } - int mutable_bitField0_ = 0; - com.google.protobuf.UnknownFieldSet.Builder unknownFields = - com.google.protobuf.UnknownFieldSet.newBuilder(); - try { - boolean done = false; - while (!done) { - int tag = input.readTag(); - switch (tag) { - case 0: - done = true; - break; - case 8: { - if (!((mutable_bitField0_ & 0x00000001) != 0)) { - i8Values_ = newIntList(); - mutable_bitField0_ |= 0x00000001; - } - i8Values_.addInt(input.readInt32()); - break; - } - case 10: { - int length = input.readRawVarint32(); - int limit = input.pushLimit(length); - if (!((mutable_bitField0_ & 0x00000001) != 0) && input.getBytesUntilLimit() > 0) { - i8Values_ = newIntList(); - mutable_bitField0_ |= 0x00000001; - } - while (input.getBytesUntilLimit() > 0) { - i8Values_.addInt(input.readInt32()); - } - input.popLimit(limit); - break; - } - case 16: { - if (!((mutable_bitField0_ & 0x00000002) != 0)) { - i16Values_ = newIntList(); - mutable_bitField0_ |= 0x00000002; - } - i16Values_.addInt(input.readInt32()); - break; - } - case 18: { - int length = input.readRawVarint32(); - int limit = input.pushLimit(length); - if (!((mutable_bitField0_ & 0x00000002) != 0) && input.getBytesUntilLimit() > 0) { - i16Values_ = newIntList(); - mutable_bitField0_ |= 0x00000002; - } - while (input.getBytesUntilLimit() > 0) { - i16Values_.addInt(input.readInt32()); - } - input.popLimit(limit); - break; - } - case 24: { - if (!((mutable_bitField0_ & 0x00000004) != 0)) { - i32Values_ = newIntList(); - mutable_bitField0_ |= 0x00000004; - } - i32Values_.addInt(input.readInt32()); - break; - } - case 26: { - int length = input.readRawVarint32(); - int limit = input.pushLimit(length); - if (!((mutable_bitField0_ & 0x00000004) != 0) && input.getBytesUntilLimit() > 0) { - i32Values_ = newIntList(); - mutable_bitField0_ |= 0x00000004; - } - while (input.getBytesUntilLimit() > 0) { - i32Values_.addInt(input.readInt32()); - } - input.popLimit(limit); - break; - } - case 32: { - if (!((mutable_bitField0_ & 0x00000008) != 0)) { - i64Values_ = newLongList(); - mutable_bitField0_ |= 0x00000008; - } - i64Values_.addLong(input.readInt64()); - break; - } - case 34: { - int length = input.readRawVarint32(); - int limit = input.pushLimit(length); - if (!((mutable_bitField0_ & 0x00000008) != 0) && input.getBytesUntilLimit() > 0) { - i64Values_ = newLongList(); - mutable_bitField0_ |= 0x00000008; - } - while (input.getBytesUntilLimit() > 0) { - i64Values_.addLong(input.readInt64()); - } - input.popLimit(limit); - break; - } - case 40: { - if (!((mutable_bitField0_ & 0x00000010) != 0)) { - u8Values_ = newIntList(); - mutable_bitField0_ |= 0x00000010; - } - u8Values_.addInt(input.readUInt32()); - break; - } - case 42: { - int length = input.readRawVarint32(); - int limit = input.pushLimit(length); - if (!((mutable_bitField0_ & 0x00000010) != 0) && input.getBytesUntilLimit() > 0) { - u8Values_ = newIntList(); - mutable_bitField0_ |= 0x00000010; - } - while (input.getBytesUntilLimit() > 0) { - u8Values_.addInt(input.readUInt32()); - } - input.popLimit(limit); - break; - } - case 48: { - if (!((mutable_bitField0_ & 0x00000020) != 0)) { - u16Values_ = newIntList(); - mutable_bitField0_ |= 0x00000020; - } - u16Values_.addInt(input.readUInt32()); - break; - } - case 50: { - int length = input.readRawVarint32(); - int limit = input.pushLimit(length); - if (!((mutable_bitField0_ & 0x00000020) != 0) && input.getBytesUntilLimit() > 0) { - u16Values_ = newIntList(); - mutable_bitField0_ |= 0x00000020; - } - while (input.getBytesUntilLimit() > 0) { - u16Values_.addInt(input.readUInt32()); - } - input.popLimit(limit); - break; - } - case 56: { - if (!((mutable_bitField0_ & 0x00000040) != 0)) { - u32Values_ = newIntList(); - mutable_bitField0_ |= 0x00000040; - } - u32Values_.addInt(input.readUInt32()); - break; - } - case 58: { - int length = input.readRawVarint32(); - int limit = input.pushLimit(length); - if (!((mutable_bitField0_ & 0x00000040) != 0) && input.getBytesUntilLimit() > 0) { - u32Values_ = newIntList(); - mutable_bitField0_ |= 0x00000040; - } - while (input.getBytesUntilLimit() > 0) { - u32Values_.addInt(input.readUInt32()); - } - input.popLimit(limit); - break; - } - case 64: { - if (!((mutable_bitField0_ & 0x00000080) != 0)) { - u64Values_ = newLongList(); - mutable_bitField0_ |= 0x00000080; - } - u64Values_.addLong(input.readUInt64()); - break; - } - case 66: { - int length = input.readRawVarint32(); - int limit = input.pushLimit(length); - if (!((mutable_bitField0_ & 0x00000080) != 0) && input.getBytesUntilLimit() > 0) { - u64Values_ = newLongList(); - mutable_bitField0_ |= 0x00000080; - } - while (input.getBytesUntilLimit() > 0) { - u64Values_.addLong(input.readUInt64()); - } - input.popLimit(limit); - break; - } - case 77: { - if (!((mutable_bitField0_ & 0x00000100) != 0)) { - f32Values_ = newFloatList(); - mutable_bitField0_ |= 0x00000100; - } - f32Values_.addFloat(input.readFloat()); - break; - } - case 74: { - int length = input.readRawVarint32(); - int limit = input.pushLimit(length); - if (!((mutable_bitField0_ & 0x00000100) != 0) && input.getBytesUntilLimit() > 0) { - f32Values_ = newFloatList(); - mutable_bitField0_ |= 0x00000100; - } - while (input.getBytesUntilLimit() > 0) { - f32Values_.addFloat(input.readFloat()); - } - input.popLimit(limit); - break; - } - case 81: { - if (!((mutable_bitField0_ & 0x00000200) != 0)) { - f64Values_ = newDoubleList(); - mutable_bitField0_ |= 0x00000200; - } - f64Values_.addDouble(input.readDouble()); - break; - } - case 82: { - int length = input.readRawVarint32(); - int limit = input.pushLimit(length); - if (!((mutable_bitField0_ & 0x00000200) != 0) && input.getBytesUntilLimit() > 0) { - f64Values_ = newDoubleList(); - mutable_bitField0_ |= 0x00000200; - } - while (input.getBytesUntilLimit() > 0) { - f64Values_.addDouble(input.readDouble()); - } - input.popLimit(limit); - break; - } - case 88: { - if (!((mutable_bitField0_ & 0x00000400) != 0)) { - boolValues_ = newBooleanList(); - mutable_bitField0_ |= 0x00000400; - } - boolValues_.addBoolean(input.readBool()); - break; - } - case 90: { - int length = input.readRawVarint32(); - int limit = input.pushLimit(length); - if (!((mutable_bitField0_ & 0x00000400) != 0) && input.getBytesUntilLimit() > 0) { - boolValues_ = newBooleanList(); - mutable_bitField0_ |= 0x00000400; - } - while (input.getBytesUntilLimit() > 0) { - boolValues_.addBoolean(input.readBool()); - } - input.popLimit(limit); - break; - } - case 98: { - if (!((mutable_bitField0_ & 0x00000800) != 0)) { - binaryValues_ = new java.util.ArrayList(); - mutable_bitField0_ |= 0x00000800; - } - binaryValues_.add(input.readBytes()); - break; - } - case 106: { - java.lang.String s = input.readStringRequireUtf8(); - if (!((mutable_bitField0_ & 0x00001000) != 0)) { - stringValues_ = new com.google.protobuf.LazyStringArrayList(); - mutable_bitField0_ |= 0x00001000; - } - stringValues_.add(s); - break; - } - case 112: { - if (!((mutable_bitField0_ & 0x00002000) != 0)) { - dateValues_ = newIntList(); - mutable_bitField0_ |= 0x00002000; - } - dateValues_.addInt(input.readInt32()); - break; - } - case 114: { - int length = input.readRawVarint32(); - int limit = input.pushLimit(length); - if (!((mutable_bitField0_ & 0x00002000) != 0) && input.getBytesUntilLimit() > 0) { - dateValues_ = newIntList(); - mutable_bitField0_ |= 0x00002000; - } - while (input.getBytesUntilLimit() > 0) { - dateValues_.addInt(input.readInt32()); - } - input.popLimit(limit); - break; - } - case 120: { - if (!((mutable_bitField0_ & 0x00004000) != 0)) { - datetimeValues_ = newLongList(); - mutable_bitField0_ |= 0x00004000; - } - datetimeValues_.addLong(input.readInt64()); - break; - } - case 122: { - int length = input.readRawVarint32(); - int limit = input.pushLimit(length); - if (!((mutable_bitField0_ & 0x00004000) != 0) && input.getBytesUntilLimit() > 0) { - datetimeValues_ = newLongList(); - mutable_bitField0_ |= 0x00004000; - } - while (input.getBytesUntilLimit() > 0) { - datetimeValues_.addLong(input.readInt64()); - } - input.popLimit(limit); - break; - } - case 128: { - if (!((mutable_bitField0_ & 0x00008000) != 0)) { - tsSecondValues_ = newLongList(); - mutable_bitField0_ |= 0x00008000; - } - tsSecondValues_.addLong(input.readInt64()); - break; - } - case 130: { - int length = input.readRawVarint32(); - int limit = input.pushLimit(length); - if (!((mutable_bitField0_ & 0x00008000) != 0) && input.getBytesUntilLimit() > 0) { - tsSecondValues_ = newLongList(); - mutable_bitField0_ |= 0x00008000; - } - while (input.getBytesUntilLimit() > 0) { - tsSecondValues_.addLong(input.readInt64()); - } - input.popLimit(limit); - break; - } - case 136: { - if (!((mutable_bitField0_ & 0x00010000) != 0)) { - tsMillisecondValues_ = newLongList(); - mutable_bitField0_ |= 0x00010000; - } - tsMillisecondValues_.addLong(input.readInt64()); - break; - } - case 138: { - int length = input.readRawVarint32(); - int limit = input.pushLimit(length); - if (!((mutable_bitField0_ & 0x00010000) != 0) && input.getBytesUntilLimit() > 0) { - tsMillisecondValues_ = newLongList(); - mutable_bitField0_ |= 0x00010000; - } - while (input.getBytesUntilLimit() > 0) { - tsMillisecondValues_.addLong(input.readInt64()); - } - input.popLimit(limit); - break; - } - case 144: { - if (!((mutable_bitField0_ & 0x00020000) != 0)) { - tsMicrosecondValues_ = newLongList(); - mutable_bitField0_ |= 0x00020000; - } - tsMicrosecondValues_.addLong(input.readInt64()); - break; - } - case 146: { - int length = input.readRawVarint32(); - int limit = input.pushLimit(length); - if (!((mutable_bitField0_ & 0x00020000) != 0) && input.getBytesUntilLimit() > 0) { - tsMicrosecondValues_ = newLongList(); - mutable_bitField0_ |= 0x00020000; - } - while (input.getBytesUntilLimit() > 0) { - tsMicrosecondValues_.addLong(input.readInt64()); - } - input.popLimit(limit); - break; - } - case 152: { - if (!((mutable_bitField0_ & 0x00040000) != 0)) { - tsNanosecondValues_ = newLongList(); - mutable_bitField0_ |= 0x00040000; - } - tsNanosecondValues_.addLong(input.readInt64()); - break; - } - case 154: { - int length = input.readRawVarint32(); - int limit = input.pushLimit(length); - if (!((mutable_bitField0_ & 0x00040000) != 0) && input.getBytesUntilLimit() > 0) { - tsNanosecondValues_ = newLongList(); - mutable_bitField0_ |= 0x00040000; - } - while (input.getBytesUntilLimit() > 0) { - tsNanosecondValues_.addLong(input.readInt64()); - } - input.popLimit(limit); - break; - } - default: { - if (!parseUnknownField( - input, unknownFields, extensionRegistry, tag)) { - done = true; - } - break; - } - } - } - } catch (com.google.protobuf.InvalidProtocolBufferException e) { - throw e.setUnfinishedMessage(this); - } catch (java.io.IOException e) { - throw new com.google.protobuf.InvalidProtocolBufferException( - e).setUnfinishedMessage(this); - } finally { - if (((mutable_bitField0_ & 0x00000001) != 0)) { - i8Values_.makeImmutable(); // C - } - if (((mutable_bitField0_ & 0x00000002) != 0)) { - i16Values_.makeImmutable(); // C - } - if (((mutable_bitField0_ & 0x00000004) != 0)) { - i32Values_.makeImmutable(); // C - } - if (((mutable_bitField0_ & 0x00000008) != 0)) { - i64Values_.makeImmutable(); // C - } - if (((mutable_bitField0_ & 0x00000010) != 0)) { - u8Values_.makeImmutable(); // C - } - if (((mutable_bitField0_ & 0x00000020) != 0)) { - u16Values_.makeImmutable(); // C - } - if (((mutable_bitField0_ & 0x00000040) != 0)) { - u32Values_.makeImmutable(); // C - } - if (((mutable_bitField0_ & 0x00000080) != 0)) { - u64Values_.makeImmutable(); // C - } - if (((mutable_bitField0_ & 0x00000100) != 0)) { - f32Values_.makeImmutable(); // C - } - if (((mutable_bitField0_ & 0x00000200) != 0)) { - f64Values_.makeImmutable(); // C - } - if (((mutable_bitField0_ & 0x00000400) != 0)) { - boolValues_.makeImmutable(); // C - } - if (((mutable_bitField0_ & 0x00000800) != 0)) { - binaryValues_ = java.util.Collections.unmodifiableList(binaryValues_); // C - } - if (((mutable_bitField0_ & 0x00001000) != 0)) { - stringValues_ = stringValues_.getUnmodifiableView(); - } - if (((mutable_bitField0_ & 0x00002000) != 0)) { - dateValues_.makeImmutable(); // C - } - if (((mutable_bitField0_ & 0x00004000) != 0)) { - datetimeValues_.makeImmutable(); // C - } - if (((mutable_bitField0_ & 0x00008000) != 0)) { - tsSecondValues_.makeImmutable(); // C - } - if (((mutable_bitField0_ & 0x00010000) != 0)) { - tsMillisecondValues_.makeImmutable(); // C - } - if (((mutable_bitField0_ & 0x00020000) != 0)) { - tsMicrosecondValues_.makeImmutable(); // C - } - if (((mutable_bitField0_ & 0x00040000) != 0)) { - tsNanosecondValues_.makeImmutable(); // C - } - this.unknownFields = unknownFields.build(); - makeExtensionsImmutable(); - } - } public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() { return io.greptime.v1.Columns.internal_static_greptime_v1_Column_Values_descriptor; @@ -1475,6 +933,7 @@ public final class Columns { } public static final int I8_VALUES_FIELD_NUMBER = 1; + @SuppressWarnings("serial") private com.google.protobuf.Internal.IntList i8Values_; /** * repeated int32 i8_values = 1; @@ -1503,6 +962,7 @@ public final class Columns { private int i8ValuesMemoizedSerializedSize = -1; public static final int I16_VALUES_FIELD_NUMBER = 2; + @SuppressWarnings("serial") private com.google.protobuf.Internal.IntList i16Values_; /** * repeated int32 i16_values = 2; @@ -1531,6 +991,7 @@ public final class Columns { private int i16ValuesMemoizedSerializedSize = -1; public static final int I32_VALUES_FIELD_NUMBER = 3; + @SuppressWarnings("serial") private com.google.protobuf.Internal.IntList i32Values_; /** * repeated int32 i32_values = 3; @@ -1559,6 +1020,7 @@ public final class Columns { private int i32ValuesMemoizedSerializedSize = -1; public static final int I64_VALUES_FIELD_NUMBER = 4; + @SuppressWarnings("serial") private com.google.protobuf.Internal.LongList i64Values_; /** * repeated int64 i64_values = 4; @@ -1587,6 +1049,7 @@ public final class Columns { private int i64ValuesMemoizedSerializedSize = -1; public static final int U8_VALUES_FIELD_NUMBER = 5; + @SuppressWarnings("serial") private com.google.protobuf.Internal.IntList u8Values_; /** * repeated uint32 u8_values = 5; @@ -1615,6 +1078,7 @@ public final class Columns { private int u8ValuesMemoizedSerializedSize = -1; public static final int U16_VALUES_FIELD_NUMBER = 6; + @SuppressWarnings("serial") private com.google.protobuf.Internal.IntList u16Values_; /** * repeated uint32 u16_values = 6; @@ -1643,6 +1107,7 @@ public final class Columns { private int u16ValuesMemoizedSerializedSize = -1; public static final int U32_VALUES_FIELD_NUMBER = 7; + @SuppressWarnings("serial") private com.google.protobuf.Internal.IntList u32Values_; /** * repeated uint32 u32_values = 7; @@ -1671,6 +1136,7 @@ public final class Columns { private int u32ValuesMemoizedSerializedSize = -1; public static final int U64_VALUES_FIELD_NUMBER = 8; + @SuppressWarnings("serial") private com.google.protobuf.Internal.LongList u64Values_; /** * repeated uint64 u64_values = 8; @@ -1699,6 +1165,7 @@ public final class Columns { private int u64ValuesMemoizedSerializedSize = -1; public static final int F32_VALUES_FIELD_NUMBER = 9; + @SuppressWarnings("serial") private com.google.protobuf.Internal.FloatList f32Values_; /** * repeated float f32_values = 9; @@ -1727,6 +1194,7 @@ public final class Columns { private int f32ValuesMemoizedSerializedSize = -1; public static final int F64_VALUES_FIELD_NUMBER = 10; + @SuppressWarnings("serial") private com.google.protobuf.Internal.DoubleList f64Values_; /** * repeated double f64_values = 10; @@ -1755,6 +1223,7 @@ public final class Columns { private int f64ValuesMemoizedSerializedSize = -1; public static final int BOOL_VALUES_FIELD_NUMBER = 11; + @SuppressWarnings("serial") private com.google.protobuf.Internal.BooleanList boolValues_; /** * repeated bool bool_values = 11; @@ -1783,6 +1252,7 @@ public final class Columns { private int boolValuesMemoizedSerializedSize = -1; public static final int BINARY_VALUES_FIELD_NUMBER = 12; + @SuppressWarnings("serial") private java.util.List binaryValues_; /** * repeated bytes binary_values = 12; @@ -1810,6 +1280,7 @@ public final class Columns { } public static final int STRING_VALUES_FIELD_NUMBER = 13; + @SuppressWarnings("serial") private com.google.protobuf.LazyStringList stringValues_; /** * repeated string string_values = 13; @@ -1845,6 +1316,7 @@ public final class Columns { } public static final int DATE_VALUES_FIELD_NUMBER = 14; + @SuppressWarnings("serial") private com.google.protobuf.Internal.IntList dateValues_; /** * repeated int32 date_values = 14; @@ -1873,6 +1345,7 @@ public final class Columns { private int dateValuesMemoizedSerializedSize = -1; public static final int DATETIME_VALUES_FIELD_NUMBER = 15; + @SuppressWarnings("serial") private com.google.protobuf.Internal.LongList datetimeValues_; /** * repeated int64 datetime_values = 15; @@ -1901,6 +1374,7 @@ public final class Columns { private int datetimeValuesMemoizedSerializedSize = -1; public static final int TS_SECOND_VALUES_FIELD_NUMBER = 16; + @SuppressWarnings("serial") private com.google.protobuf.Internal.LongList tsSecondValues_; /** * repeated int64 ts_second_values = 16; @@ -1929,6 +1403,7 @@ public final class Columns { private int tsSecondValuesMemoizedSerializedSize = -1; public static final int TS_MILLISECOND_VALUES_FIELD_NUMBER = 17; + @SuppressWarnings("serial") private com.google.protobuf.Internal.LongList tsMillisecondValues_; /** * repeated int64 ts_millisecond_values = 17; @@ -1957,6 +1432,7 @@ public final class Columns { private int tsMillisecondValuesMemoizedSerializedSize = -1; public static final int TS_MICROSECOND_VALUES_FIELD_NUMBER = 18; + @SuppressWarnings("serial") private com.google.protobuf.Internal.LongList tsMicrosecondValues_; /** * repeated int64 ts_microsecond_values = 18; @@ -1985,6 +1461,7 @@ public final class Columns { private int tsMicrosecondValuesMemoizedSerializedSize = -1; public static final int TS_NANOSECOND_VALUES_FIELD_NUMBER = 19; + @SuppressWarnings("serial") private com.google.protobuf.Internal.LongList tsNanosecondValues_; /** * repeated int64 ts_nanosecond_values = 19; @@ -2152,7 +1629,7 @@ public final class Columns { for (int i = 0; i < tsNanosecondValues_.size(); i++) { output.writeInt64NoTag(tsNanosecondValues_.getLong(i)); } - unknownFields.writeTo(output); + getUnknownFields().writeTo(output); } @java.lang.Override @@ -2407,7 +1884,7 @@ public final class Columns { } tsNanosecondValuesMemoizedSerializedSize = dataSize; } - size += unknownFields.getSerializedSize(); + size += getUnknownFields().getSerializedSize(); memoizedSize = size; return size; } @@ -2460,7 +1937,7 @@ public final class Columns { .equals(other.getTsMicrosecondValuesList())) return false; if (!getTsNanosecondValuesList() .equals(other.getTsNanosecondValuesList())) return false; - if (!unknownFields.equals(other.unknownFields)) return false; + if (!getUnknownFields().equals(other.getUnknownFields())) return false; return true; } @@ -2547,7 +2024,7 @@ public final class Columns { hash = (37 * hash) + TS_NANOSECOND_VALUES_FIELD_NUMBER; hash = (53 * hash) + getTsNanosecondValuesList().hashCode(); } - hash = (29 * hash) + unknownFields.hashCode(); + hash = (29 * hash) + getUnknownFields().hashCode(); memoizedHashCode = hash; return hash; } @@ -2664,60 +2141,38 @@ public final class Columns { // Construct using io.greptime.v1.Columns.Column.Values.newBuilder() private Builder() { - maybeForceBuilderInitialization(); + } private Builder( com.google.protobuf.GeneratedMessageV3.BuilderParent parent) { super(parent); - maybeForceBuilderInitialization(); - } - private void maybeForceBuilderInitialization() { - if (com.google.protobuf.GeneratedMessageV3 - .alwaysUseFieldBuilders) { - } + } @java.lang.Override public Builder clear() { super.clear(); + bitField0_ = 0; i8Values_ = emptyIntList(); - bitField0_ = (bitField0_ & ~0x00000001); i16Values_ = emptyIntList(); - bitField0_ = (bitField0_ & ~0x00000002); i32Values_ = emptyIntList(); - bitField0_ = (bitField0_ & ~0x00000004); i64Values_ = emptyLongList(); - bitField0_ = (bitField0_ & ~0x00000008); u8Values_ = emptyIntList(); - bitField0_ = (bitField0_ & ~0x00000010); u16Values_ = emptyIntList(); - bitField0_ = (bitField0_ & ~0x00000020); u32Values_ = emptyIntList(); - bitField0_ = (bitField0_ & ~0x00000040); u64Values_ = emptyLongList(); - bitField0_ = (bitField0_ & ~0x00000080); f32Values_ = emptyFloatList(); - bitField0_ = (bitField0_ & ~0x00000100); f64Values_ = emptyDoubleList(); - bitField0_ = (bitField0_ & ~0x00000200); boolValues_ = emptyBooleanList(); - bitField0_ = (bitField0_ & ~0x00000400); binaryValues_ = java.util.Collections.emptyList(); - bitField0_ = (bitField0_ & ~0x00000800); stringValues_ = com.google.protobuf.LazyStringArrayList.EMPTY; bitField0_ = (bitField0_ & ~0x00001000); dateValues_ = emptyIntList(); - bitField0_ = (bitField0_ & ~0x00002000); datetimeValues_ = emptyLongList(); - bitField0_ = (bitField0_ & ~0x00004000); tsSecondValues_ = emptyLongList(); - bitField0_ = (bitField0_ & ~0x00008000); tsMillisecondValues_ = emptyLongList(); - bitField0_ = (bitField0_ & ~0x00010000); tsMicrosecondValues_ = emptyLongList(); - bitField0_ = (bitField0_ & ~0x00020000); tsNanosecondValues_ = emptyLongList(); - bitField0_ = (bitField0_ & ~0x00040000); return this; } @@ -2744,7 +2199,13 @@ public final class Columns { @java.lang.Override public io.greptime.v1.Columns.Column.Values buildPartial() { io.greptime.v1.Columns.Column.Values result = new io.greptime.v1.Columns.Column.Values(this); - int from_bitField0_ = bitField0_; + buildPartialRepeatedFields(result); + if (bitField0_ != 0) { buildPartial0(result); } + onBuilt(); + return result; + } + + private void buildPartialRepeatedFields(io.greptime.v1.Columns.Column.Values result) { if (((bitField0_ & 0x00000001) != 0)) { i8Values_.makeImmutable(); bitField0_ = (bitField0_ & ~0x00000001); @@ -2840,8 +2301,10 @@ public final class Columns { bitField0_ = (bitField0_ & ~0x00040000); } result.tsNanosecondValues_ = tsNanosecondValues_; - onBuilt(); - return result; + } + + private void buildPartial0(io.greptime.v1.Columns.Column.Values result) { + int from_bitField0_ = bitField0_; } @java.lang.Override @@ -3078,7 +2541,7 @@ public final class Columns { } onChanged(); } - this.mergeUnknownFields(other.unknownFields); + this.mergeUnknownFields(other.getUnknownFields()); onChanged(); return this; } @@ -3093,17 +2556,314 @@ public final class Columns { com.google.protobuf.CodedInputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws java.io.IOException { - io.greptime.v1.Columns.Column.Values parsedMessage = null; + if (extensionRegistry == null) { + throw new java.lang.NullPointerException(); + } try { - parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry); + boolean done = false; + while (!done) { + int tag = input.readTag(); + switch (tag) { + case 0: + done = true; + break; + case 8: { + int v = input.readInt32(); + ensureI8ValuesIsMutable(); + i8Values_.addInt(v); + break; + } // case 8 + case 10: { + int length = input.readRawVarint32(); + int limit = input.pushLimit(length); + ensureI8ValuesIsMutable(); + while (input.getBytesUntilLimit() > 0) { + i8Values_.addInt(input.readInt32()); + } + input.popLimit(limit); + break; + } // case 10 + case 16: { + int v = input.readInt32(); + ensureI16ValuesIsMutable(); + i16Values_.addInt(v); + break; + } // case 16 + case 18: { + int length = input.readRawVarint32(); + int limit = input.pushLimit(length); + ensureI16ValuesIsMutable(); + while (input.getBytesUntilLimit() > 0) { + i16Values_.addInt(input.readInt32()); + } + input.popLimit(limit); + break; + } // case 18 + case 24: { + int v = input.readInt32(); + ensureI32ValuesIsMutable(); + i32Values_.addInt(v); + break; + } // case 24 + case 26: { + int length = input.readRawVarint32(); + int limit = input.pushLimit(length); + ensureI32ValuesIsMutable(); + while (input.getBytesUntilLimit() > 0) { + i32Values_.addInt(input.readInt32()); + } + input.popLimit(limit); + break; + } // case 26 + case 32: { + long v = input.readInt64(); + ensureI64ValuesIsMutable(); + i64Values_.addLong(v); + break; + } // case 32 + case 34: { + int length = input.readRawVarint32(); + int limit = input.pushLimit(length); + ensureI64ValuesIsMutable(); + while (input.getBytesUntilLimit() > 0) { + i64Values_.addLong(input.readInt64()); + } + input.popLimit(limit); + break; + } // case 34 + case 40: { + int v = input.readUInt32(); + ensureU8ValuesIsMutable(); + u8Values_.addInt(v); + break; + } // case 40 + case 42: { + int length = input.readRawVarint32(); + int limit = input.pushLimit(length); + ensureU8ValuesIsMutable(); + while (input.getBytesUntilLimit() > 0) { + u8Values_.addInt(input.readUInt32()); + } + input.popLimit(limit); + break; + } // case 42 + case 48: { + int v = input.readUInt32(); + ensureU16ValuesIsMutable(); + u16Values_.addInt(v); + break; + } // case 48 + case 50: { + int length = input.readRawVarint32(); + int limit = input.pushLimit(length); + ensureU16ValuesIsMutable(); + while (input.getBytesUntilLimit() > 0) { + u16Values_.addInt(input.readUInt32()); + } + input.popLimit(limit); + break; + } // case 50 + case 56: { + int v = input.readUInt32(); + ensureU32ValuesIsMutable(); + u32Values_.addInt(v); + break; + } // case 56 + case 58: { + int length = input.readRawVarint32(); + int limit = input.pushLimit(length); + ensureU32ValuesIsMutable(); + while (input.getBytesUntilLimit() > 0) { + u32Values_.addInt(input.readUInt32()); + } + input.popLimit(limit); + break; + } // case 58 + case 64: { + long v = input.readUInt64(); + ensureU64ValuesIsMutable(); + u64Values_.addLong(v); + break; + } // case 64 + case 66: { + int length = input.readRawVarint32(); + int limit = input.pushLimit(length); + ensureU64ValuesIsMutable(); + while (input.getBytesUntilLimit() > 0) { + u64Values_.addLong(input.readUInt64()); + } + input.popLimit(limit); + break; + } // case 66 + case 77: { + float v = input.readFloat(); + ensureF32ValuesIsMutable(); + f32Values_.addFloat(v); + break; + } // case 77 + case 74: { + int length = input.readRawVarint32(); + int limit = input.pushLimit(length); + ensureF32ValuesIsMutable(); + while (input.getBytesUntilLimit() > 0) { + f32Values_.addFloat(input.readFloat()); + } + input.popLimit(limit); + break; + } // case 74 + case 81: { + double v = input.readDouble(); + ensureF64ValuesIsMutable(); + f64Values_.addDouble(v); + break; + } // case 81 + case 82: { + int length = input.readRawVarint32(); + int limit = input.pushLimit(length); + ensureF64ValuesIsMutable(); + while (input.getBytesUntilLimit() > 0) { + f64Values_.addDouble(input.readDouble()); + } + input.popLimit(limit); + break; + } // case 82 + case 88: { + boolean v = input.readBool(); + ensureBoolValuesIsMutable(); + boolValues_.addBoolean(v); + break; + } // case 88 + case 90: { + int length = input.readRawVarint32(); + int limit = input.pushLimit(length); + ensureBoolValuesIsMutable(); + while (input.getBytesUntilLimit() > 0) { + boolValues_.addBoolean(input.readBool()); + } + input.popLimit(limit); + break; + } // case 90 + case 98: { + com.google.protobuf.ByteString v = input.readBytes(); + ensureBinaryValuesIsMutable(); + binaryValues_.add(v); + break; + } // case 98 + case 106: { + java.lang.String s = input.readStringRequireUtf8(); + ensureStringValuesIsMutable(); + stringValues_.add(s); + break; + } // case 106 + case 112: { + int v = input.readInt32(); + ensureDateValuesIsMutable(); + dateValues_.addInt(v); + break; + } // case 112 + case 114: { + int length = input.readRawVarint32(); + int limit = input.pushLimit(length); + ensureDateValuesIsMutable(); + while (input.getBytesUntilLimit() > 0) { + dateValues_.addInt(input.readInt32()); + } + input.popLimit(limit); + break; + } // case 114 + case 120: { + long v = input.readInt64(); + ensureDatetimeValuesIsMutable(); + datetimeValues_.addLong(v); + break; + } // case 120 + case 122: { + int length = input.readRawVarint32(); + int limit = input.pushLimit(length); + ensureDatetimeValuesIsMutable(); + while (input.getBytesUntilLimit() > 0) { + datetimeValues_.addLong(input.readInt64()); + } + input.popLimit(limit); + break; + } // case 122 + case 128: { + long v = input.readInt64(); + ensureTsSecondValuesIsMutable(); + tsSecondValues_.addLong(v); + break; + } // case 128 + case 130: { + int length = input.readRawVarint32(); + int limit = input.pushLimit(length); + ensureTsSecondValuesIsMutable(); + while (input.getBytesUntilLimit() > 0) { + tsSecondValues_.addLong(input.readInt64()); + } + input.popLimit(limit); + break; + } // case 130 + case 136: { + long v = input.readInt64(); + ensureTsMillisecondValuesIsMutable(); + tsMillisecondValues_.addLong(v); + break; + } // case 136 + case 138: { + int length = input.readRawVarint32(); + int limit = input.pushLimit(length); + ensureTsMillisecondValuesIsMutable(); + while (input.getBytesUntilLimit() > 0) { + tsMillisecondValues_.addLong(input.readInt64()); + } + input.popLimit(limit); + break; + } // case 138 + case 144: { + long v = input.readInt64(); + ensureTsMicrosecondValuesIsMutable(); + tsMicrosecondValues_.addLong(v); + break; + } // case 144 + case 146: { + int length = input.readRawVarint32(); + int limit = input.pushLimit(length); + ensureTsMicrosecondValuesIsMutable(); + while (input.getBytesUntilLimit() > 0) { + tsMicrosecondValues_.addLong(input.readInt64()); + } + input.popLimit(limit); + break; + } // case 146 + case 152: { + long v = input.readInt64(); + ensureTsNanosecondValuesIsMutable(); + tsNanosecondValues_.addLong(v); + break; + } // case 152 + case 154: { + int length = input.readRawVarint32(); + int limit = input.pushLimit(length); + ensureTsNanosecondValuesIsMutable(); + while (input.getBytesUntilLimit() > 0) { + tsNanosecondValues_.addLong(input.readInt64()); + } + input.popLimit(limit); + break; + } // case 154 + default: { + if (!super.parseUnknownField(input, extensionRegistry, tag)) { + done = true; // was an endgroup tag + } + break; + } // default: + } // switch (tag) + } // while (!done) } catch (com.google.protobuf.InvalidProtocolBufferException e) { - parsedMessage = (io.greptime.v1.Columns.Column.Values) e.getUnfinishedMessage(); throw e.unwrapIOException(); } finally { - if (parsedMessage != null) { - mergeFrom(parsedMessage); - } - } + onChanged(); + } // finally return this; } private int bitField0_; @@ -3113,7 +2873,7 @@ public final class Columns { if (!((bitField0_ & 0x00000001) != 0)) { i8Values_ = mutableCopy(i8Values_); bitField0_ |= 0x00000001; - } + } } /** * repeated int32 i8_values = 1; @@ -3147,6 +2907,7 @@ public final class Columns { */ public Builder setI8Values( int index, int value) { + ensureI8ValuesIsMutable(); i8Values_.setInt(index, value); onChanged(); @@ -3158,6 +2919,7 @@ public final class Columns { * @return This builder for chaining. */ public Builder addI8Values(int value) { + ensureI8ValuesIsMutable(); i8Values_.addInt(value); onChanged(); @@ -3192,7 +2954,7 @@ public final class Columns { if (!((bitField0_ & 0x00000002) != 0)) { i16Values_ = mutableCopy(i16Values_); bitField0_ |= 0x00000002; - } + } } /** * repeated int32 i16_values = 2; @@ -3226,6 +2988,7 @@ public final class Columns { */ public Builder setI16Values( int index, int value) { + ensureI16ValuesIsMutable(); i16Values_.setInt(index, value); onChanged(); @@ -3237,6 +3000,7 @@ public final class Columns { * @return This builder for chaining. */ public Builder addI16Values(int value) { + ensureI16ValuesIsMutable(); i16Values_.addInt(value); onChanged(); @@ -3271,7 +3035,7 @@ public final class Columns { if (!((bitField0_ & 0x00000004) != 0)) { i32Values_ = mutableCopy(i32Values_); bitField0_ |= 0x00000004; - } + } } /** * repeated int32 i32_values = 3; @@ -3305,6 +3069,7 @@ public final class Columns { */ public Builder setI32Values( int index, int value) { + ensureI32ValuesIsMutable(); i32Values_.setInt(index, value); onChanged(); @@ -3316,6 +3081,7 @@ public final class Columns { * @return This builder for chaining. */ public Builder addI32Values(int value) { + ensureI32ValuesIsMutable(); i32Values_.addInt(value); onChanged(); @@ -3350,7 +3116,7 @@ public final class Columns { if (!((bitField0_ & 0x00000008) != 0)) { i64Values_ = mutableCopy(i64Values_); bitField0_ |= 0x00000008; - } + } } /** * repeated int64 i64_values = 4; @@ -3384,6 +3150,7 @@ public final class Columns { */ public Builder setI64Values( int index, long value) { + ensureI64ValuesIsMutable(); i64Values_.setLong(index, value); onChanged(); @@ -3395,6 +3162,7 @@ public final class Columns { * @return This builder for chaining. */ public Builder addI64Values(long value) { + ensureI64ValuesIsMutable(); i64Values_.addLong(value); onChanged(); @@ -3429,7 +3197,7 @@ public final class Columns { if (!((bitField0_ & 0x00000010) != 0)) { u8Values_ = mutableCopy(u8Values_); bitField0_ |= 0x00000010; - } + } } /** * repeated uint32 u8_values = 5; @@ -3463,6 +3231,7 @@ public final class Columns { */ public Builder setU8Values( int index, int value) { + ensureU8ValuesIsMutable(); u8Values_.setInt(index, value); onChanged(); @@ -3474,6 +3243,7 @@ public final class Columns { * @return This builder for chaining. */ public Builder addU8Values(int value) { + ensureU8ValuesIsMutable(); u8Values_.addInt(value); onChanged(); @@ -3508,7 +3278,7 @@ public final class Columns { if (!((bitField0_ & 0x00000020) != 0)) { u16Values_ = mutableCopy(u16Values_); bitField0_ |= 0x00000020; - } + } } /** * repeated uint32 u16_values = 6; @@ -3542,6 +3312,7 @@ public final class Columns { */ public Builder setU16Values( int index, int value) { + ensureU16ValuesIsMutable(); u16Values_.setInt(index, value); onChanged(); @@ -3553,6 +3324,7 @@ public final class Columns { * @return This builder for chaining. */ public Builder addU16Values(int value) { + ensureU16ValuesIsMutable(); u16Values_.addInt(value); onChanged(); @@ -3587,7 +3359,7 @@ public final class Columns { if (!((bitField0_ & 0x00000040) != 0)) { u32Values_ = mutableCopy(u32Values_); bitField0_ |= 0x00000040; - } + } } /** * repeated uint32 u32_values = 7; @@ -3621,6 +3393,7 @@ public final class Columns { */ public Builder setU32Values( int index, int value) { + ensureU32ValuesIsMutable(); u32Values_.setInt(index, value); onChanged(); @@ -3632,6 +3405,7 @@ public final class Columns { * @return This builder for chaining. */ public Builder addU32Values(int value) { + ensureU32ValuesIsMutable(); u32Values_.addInt(value); onChanged(); @@ -3666,7 +3440,7 @@ public final class Columns { if (!((bitField0_ & 0x00000080) != 0)) { u64Values_ = mutableCopy(u64Values_); bitField0_ |= 0x00000080; - } + } } /** * repeated uint64 u64_values = 8; @@ -3700,6 +3474,7 @@ public final class Columns { */ public Builder setU64Values( int index, long value) { + ensureU64ValuesIsMutable(); u64Values_.setLong(index, value); onChanged(); @@ -3711,6 +3486,7 @@ public final class Columns { * @return This builder for chaining. */ public Builder addU64Values(long value) { + ensureU64ValuesIsMutable(); u64Values_.addLong(value); onChanged(); @@ -3745,7 +3521,7 @@ public final class Columns { if (!((bitField0_ & 0x00000100) != 0)) { f32Values_ = mutableCopy(f32Values_); bitField0_ |= 0x00000100; - } + } } /** * repeated float f32_values = 9; @@ -3779,6 +3555,7 @@ public final class Columns { */ public Builder setF32Values( int index, float value) { + ensureF32ValuesIsMutable(); f32Values_.setFloat(index, value); onChanged(); @@ -3790,6 +3567,7 @@ public final class Columns { * @return This builder for chaining. */ public Builder addF32Values(float value) { + ensureF32ValuesIsMutable(); f32Values_.addFloat(value); onChanged(); @@ -3824,7 +3602,7 @@ public final class Columns { if (!((bitField0_ & 0x00000200) != 0)) { f64Values_ = mutableCopy(f64Values_); bitField0_ |= 0x00000200; - } + } } /** * repeated double f64_values = 10; @@ -3858,6 +3636,7 @@ public final class Columns { */ public Builder setF64Values( int index, double value) { + ensureF64ValuesIsMutable(); f64Values_.setDouble(index, value); onChanged(); @@ -3869,6 +3648,7 @@ public final class Columns { * @return This builder for chaining. */ public Builder addF64Values(double value) { + ensureF64ValuesIsMutable(); f64Values_.addDouble(value); onChanged(); @@ -3903,7 +3683,7 @@ public final class Columns { if (!((bitField0_ & 0x00000400) != 0)) { boolValues_ = mutableCopy(boolValues_); bitField0_ |= 0x00000400; - } + } } /** * repeated bool bool_values = 11; @@ -3937,6 +3717,7 @@ public final class Columns { */ public Builder setBoolValues( int index, boolean value) { + ensureBoolValuesIsMutable(); boolValues_.setBoolean(index, value); onChanged(); @@ -3948,6 +3729,7 @@ public final class Columns { * @return This builder for chaining. */ public Builder addBoolValues(boolean value) { + ensureBoolValuesIsMutable(); boolValues_.addBoolean(value); onChanged(); @@ -3982,7 +3764,7 @@ public final class Columns { if (!((bitField0_ & 0x00000800) != 0)) { binaryValues_ = new java.util.ArrayList(binaryValues_); bitField0_ |= 0x00000800; - } + } } /** * repeated bytes binary_values = 12; @@ -4016,10 +3798,8 @@ public final class Columns { */ public Builder setBinaryValues( int index, com.google.protobuf.ByteString value) { - if (value == null) { - throw new NullPointerException(); - } - ensureBinaryValuesIsMutable(); + if (value == null) { throw new NullPointerException(); } + ensureBinaryValuesIsMutable(); binaryValues_.set(index, value); onChanged(); return this; @@ -4030,10 +3810,8 @@ public final class Columns { * @return This builder for chaining. */ public Builder addBinaryValues(com.google.protobuf.ByteString value) { - if (value == null) { - throw new NullPointerException(); - } - ensureBinaryValuesIsMutable(); + if (value == null) { throw new NullPointerException(); } + ensureBinaryValuesIsMutable(); binaryValues_.add(value); onChanged(); return this; @@ -4109,10 +3887,8 @@ public final class Columns { */ public Builder setStringValues( int index, java.lang.String value) { - if (value == null) { - throw new NullPointerException(); - } - ensureStringValuesIsMutable(); + if (value == null) { throw new NullPointerException(); } + ensureStringValuesIsMutable(); stringValues_.set(index, value); onChanged(); return this; @@ -4124,10 +3900,8 @@ public final class Columns { */ public Builder addStringValues( java.lang.String value) { - if (value == null) { - throw new NullPointerException(); - } - ensureStringValuesIsMutable(); + if (value == null) { throw new NullPointerException(); } + ensureStringValuesIsMutable(); stringValues_.add(value); onChanged(); return this; @@ -4162,10 +3936,8 @@ public final class Columns { */ public Builder addStringValuesBytes( com.google.protobuf.ByteString value) { - if (value == null) { - throw new NullPointerException(); - } - checkByteStringIsUtf8(value); + if (value == null) { throw new NullPointerException(); } + checkByteStringIsUtf8(value); ensureStringValuesIsMutable(); stringValues_.add(value); onChanged(); @@ -4177,7 +3949,7 @@ public final class Columns { if (!((bitField0_ & 0x00002000) != 0)) { dateValues_ = mutableCopy(dateValues_); bitField0_ |= 0x00002000; - } + } } /** * repeated int32 date_values = 14; @@ -4211,6 +3983,7 @@ public final class Columns { */ public Builder setDateValues( int index, int value) { + ensureDateValuesIsMutable(); dateValues_.setInt(index, value); onChanged(); @@ -4222,6 +3995,7 @@ public final class Columns { * @return This builder for chaining. */ public Builder addDateValues(int value) { + ensureDateValuesIsMutable(); dateValues_.addInt(value); onChanged(); @@ -4256,7 +4030,7 @@ public final class Columns { if (!((bitField0_ & 0x00004000) != 0)) { datetimeValues_ = mutableCopy(datetimeValues_); bitField0_ |= 0x00004000; - } + } } /** * repeated int64 datetime_values = 15; @@ -4290,6 +4064,7 @@ public final class Columns { */ public Builder setDatetimeValues( int index, long value) { + ensureDatetimeValuesIsMutable(); datetimeValues_.setLong(index, value); onChanged(); @@ -4301,6 +4076,7 @@ public final class Columns { * @return This builder for chaining. */ public Builder addDatetimeValues(long value) { + ensureDatetimeValuesIsMutable(); datetimeValues_.addLong(value); onChanged(); @@ -4335,7 +4111,7 @@ public final class Columns { if (!((bitField0_ & 0x00008000) != 0)) { tsSecondValues_ = mutableCopy(tsSecondValues_); bitField0_ |= 0x00008000; - } + } } /** * repeated int64 ts_second_values = 16; @@ -4369,6 +4145,7 @@ public final class Columns { */ public Builder setTsSecondValues( int index, long value) { + ensureTsSecondValuesIsMutable(); tsSecondValues_.setLong(index, value); onChanged(); @@ -4380,6 +4157,7 @@ public final class Columns { * @return This builder for chaining. */ public Builder addTsSecondValues(long value) { + ensureTsSecondValuesIsMutable(); tsSecondValues_.addLong(value); onChanged(); @@ -4414,7 +4192,7 @@ public final class Columns { if (!((bitField0_ & 0x00010000) != 0)) { tsMillisecondValues_ = mutableCopy(tsMillisecondValues_); bitField0_ |= 0x00010000; - } + } } /** * repeated int64 ts_millisecond_values = 17; @@ -4448,6 +4226,7 @@ public final class Columns { */ public Builder setTsMillisecondValues( int index, long value) { + ensureTsMillisecondValuesIsMutable(); tsMillisecondValues_.setLong(index, value); onChanged(); @@ -4459,6 +4238,7 @@ public final class Columns { * @return This builder for chaining. */ public Builder addTsMillisecondValues(long value) { + ensureTsMillisecondValuesIsMutable(); tsMillisecondValues_.addLong(value); onChanged(); @@ -4493,7 +4273,7 @@ public final class Columns { if (!((bitField0_ & 0x00020000) != 0)) { tsMicrosecondValues_ = mutableCopy(tsMicrosecondValues_); bitField0_ |= 0x00020000; - } + } } /** * repeated int64 ts_microsecond_values = 18; @@ -4527,6 +4307,7 @@ public final class Columns { */ public Builder setTsMicrosecondValues( int index, long value) { + ensureTsMicrosecondValuesIsMutable(); tsMicrosecondValues_.setLong(index, value); onChanged(); @@ -4538,6 +4319,7 @@ public final class Columns { * @return This builder for chaining. */ public Builder addTsMicrosecondValues(long value) { + ensureTsMicrosecondValuesIsMutable(); tsMicrosecondValues_.addLong(value); onChanged(); @@ -4572,7 +4354,7 @@ public final class Columns { if (!((bitField0_ & 0x00040000) != 0)) { tsNanosecondValues_ = mutableCopy(tsNanosecondValues_); bitField0_ |= 0x00040000; - } + } } /** * repeated int64 ts_nanosecond_values = 19; @@ -4606,6 +4388,7 @@ public final class Columns { */ public Builder setTsNanosecondValues( int index, long value) { + ensureTsNanosecondValuesIsMutable(); tsNanosecondValues_.setLong(index, value); onChanged(); @@ -4617,6 +4400,7 @@ public final class Columns { * @return This builder for chaining. */ public Builder addTsNanosecondValues(long value) { + ensureTsNanosecondValuesIsMutable(); tsNanosecondValues_.addLong(value); onChanged(); @@ -4678,7 +4462,18 @@ public final class Columns { com.google.protobuf.CodedInputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws com.google.protobuf.InvalidProtocolBufferException { - return new Values(input, extensionRegistry); + Builder builder = newBuilder(); + try { + builder.mergeFrom(input, extensionRegistry); + } catch (com.google.protobuf.InvalidProtocolBufferException e) { + throw e.setUnfinishedMessage(builder.buildPartial()); + } catch (com.google.protobuf.UninitializedMessageException e) { + throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial()); + } catch (java.io.IOException e) { + throw new com.google.protobuf.InvalidProtocolBufferException(e) + .setUnfinishedMessage(builder.buildPartial()); + } + return builder.buildPartial(); } }; @@ -4699,7 +4494,8 @@ public final class Columns { } public static final int COLUMN_NAME_FIELD_NUMBER = 1; - private volatile java.lang.Object columnName_; + @SuppressWarnings("serial") + private volatile java.lang.Object columnName_ = ""; /** * string column_name = 1; * @return The columnName. @@ -4737,7 +4533,7 @@ public final class Columns { } public static final int SEMANTIC_TYPE_FIELD_NUMBER = 2; - private int semanticType_; + private int semanticType_ = 0; /** * .greptime.v1.Column.SemanticType semantic_type = 2; * @return The enum numeric value on the wire for semanticType. @@ -4750,8 +4546,7 @@ public final class Columns { * @return The semanticType. */ @java.lang.Override public io.greptime.v1.Columns.Column.SemanticType getSemanticType() { - @SuppressWarnings("deprecation") - io.greptime.v1.Columns.Column.SemanticType result = io.greptime.v1.Columns.Column.SemanticType.valueOf(semanticType_); + io.greptime.v1.Columns.Column.SemanticType result = io.greptime.v1.Columns.Column.SemanticType.forNumber(semanticType_); return result == null ? io.greptime.v1.Columns.Column.SemanticType.UNRECOGNIZED : result; } @@ -4808,11 +4603,11 @@ public final class Columns { */ @java.lang.Override public io.greptime.v1.Columns.Column.ValuesOrBuilder getValuesOrBuilder() { - return getValues(); + return values_ == null ? io.greptime.v1.Columns.Column.Values.getDefaultInstance() : values_; } public static final int NULL_MASK_FIELD_NUMBER = 4; - private com.google.protobuf.ByteString nullMask_; + private com.google.protobuf.ByteString nullMask_ = com.google.protobuf.ByteString.EMPTY; /** * 
      * Mask maps the positions of null values.
@@ -4828,7 +4623,7 @@ public final class Columns {
     }
 
     public static final int DATATYPE_FIELD_NUMBER = 5;
-    private int datatype_;
+    private int datatype_ = 0;
     /**
      * 
      * Helpful in creating vector from column.
@@ -4849,8 +4644,7 @@ public final class Columns {
      * @return The datatype.
      */
     @java.lang.Override public io.greptime.v1.Columns.ColumnDataType getDatatype() {
-      @SuppressWarnings("deprecation")
-      io.greptime.v1.Columns.ColumnDataType result = io.greptime.v1.Columns.ColumnDataType.valueOf(datatype_);
+      io.greptime.v1.Columns.ColumnDataType result = io.greptime.v1.Columns.ColumnDataType.forNumber(datatype_);
       return result == null ? io.greptime.v1.Columns.ColumnDataType.UNRECOGNIZED : result;
     }
 
@@ -4883,7 +4677,7 @@ public final class Columns {
       if (datatype_ != io.greptime.v1.Columns.ColumnDataType.BOOLEAN.getNumber()) {
         output.writeEnum(5, datatype_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -4911,7 +4705,7 @@ public final class Columns {
         size += com.google.protobuf.CodedOutputStream
           .computeEnumSize(5, datatype_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -4937,7 +4731,7 @@ public final class Columns {
       if (!getNullMask()
           .equals(other.getNullMask())) return false;
       if (datatype_ != other.datatype_) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -4960,7 +4754,7 @@ public final class Columns {
       hash = (53 * hash) + getNullMask().hashCode();
       hash = (37 * hash) + DATATYPE_FIELD_NUMBER;
       hash = (53 * hash) + datatype_;
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -5077,36 +4871,27 @@ public final class Columns {
 
       // Construct using io.greptime.v1.Columns.Column.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
+        bitField0_ = 0;
         columnName_ = "";
-
         semanticType_ = 0;
-
-        if (valuesBuilder_ == null) {
-          values_ = null;
-        } else {
-          values_ = null;
+        values_ = null;
+        if (valuesBuilder_ != null) {
+          valuesBuilder_.dispose();
           valuesBuilder_ = null;
         }
         nullMask_ = com.google.protobuf.ByteString.EMPTY;
-
         datatype_ = 0;
-
         return this;
       }
 
@@ -5133,19 +4918,32 @@ public final class Columns {
       @java.lang.Override
       public io.greptime.v1.Columns.Column buildPartial() {
         io.greptime.v1.Columns.Column result = new io.greptime.v1.Columns.Column(this);
-        result.columnName_ = columnName_;
-        result.semanticType_ = semanticType_;
-        if (valuesBuilder_ == null) {
-          result.values_ = values_;
-        } else {
-          result.values_ = valuesBuilder_.build();
-        }
-        result.nullMask_ = nullMask_;
-        result.datatype_ = datatype_;
+        if (bitField0_ != 0) { buildPartial0(result); }
         onBuilt();
         return result;
       }
 
+      private void buildPartial0(io.greptime.v1.Columns.Column result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.columnName_ = columnName_;
+        }
+        if (((from_bitField0_ & 0x00000002) != 0)) {
+          result.semanticType_ = semanticType_;
+        }
+        if (((from_bitField0_ & 0x00000004) != 0)) {
+          result.values_ = valuesBuilder_ == null
+              ? values_
+              : valuesBuilder_.build();
+        }
+        if (((from_bitField0_ & 0x00000008) != 0)) {
+          result.nullMask_ = nullMask_;
+        }
+        if (((from_bitField0_ & 0x00000010) != 0)) {
+          result.datatype_ = datatype_;
+        }
+      }
+
       @java.lang.Override
       public Builder clone() {
         return super.clone();
@@ -5192,6 +4990,7 @@ public final class Columns {
         if (other == io.greptime.v1.Columns.Column.getDefaultInstance()) return this;
         if (!other.getColumnName().isEmpty()) {
           columnName_ = other.columnName_;
+          bitField0_ |= 0x00000001;
           onChanged();
         }
         if (other.semanticType_ != 0) {
@@ -5206,7 +5005,7 @@ public final class Columns {
         if (other.datatype_ != 0) {
           setDatatypeValue(other.getDatatypeValue());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -5221,19 +5020,60 @@ public final class Columns {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Columns.Column parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                columnName_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+              case 16: {
+                semanticType_ = input.readEnum();
+                bitField0_ |= 0x00000002;
+                break;
+              } // case 16
+              case 26: {
+                input.readMessage(
+                    getValuesFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                bitField0_ |= 0x00000004;
+                break;
+              } // case 26
+              case 34: {
+                nullMask_ = input.readBytes();
+                bitField0_ |= 0x00000008;
+                break;
+              } // case 34
+              case 40: {
+                datatype_ = input.readEnum();
+                bitField0_ |= 0x00000010;
+                break;
+              } // case 40
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Columns.Column) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
+      private int bitField0_;
 
       private java.lang.Object columnName_ = "";
       /**
@@ -5276,11 +5116,9 @@ public final class Columns {
        */
       public Builder setColumnName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         columnName_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -5289,8 +5127,8 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder clearColumnName() {
-        
         columnName_ = getDefaultInstance().getColumnName();
+        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -5301,12 +5139,10 @@ public final class Columns {
        */
       public Builder setColumnNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         columnName_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -5325,8 +5161,8 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder setSemanticTypeValue(int value) {
-        
         semanticType_ = value;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -5336,8 +5172,7 @@ public final class Columns {
        */
       @java.lang.Override
       public io.greptime.v1.Columns.Column.SemanticType getSemanticType() {
-        @SuppressWarnings("deprecation")
-        io.greptime.v1.Columns.Column.SemanticType result = io.greptime.v1.Columns.Column.SemanticType.valueOf(semanticType_);
+        io.greptime.v1.Columns.Column.SemanticType result = io.greptime.v1.Columns.Column.SemanticType.forNumber(semanticType_);
         return result == null ? io.greptime.v1.Columns.Column.SemanticType.UNRECOGNIZED : result;
       }
       /**
@@ -5349,7 +5184,7 @@ public final class Columns {
         if (value == null) {
           throw new NullPointerException();
         }
-        
+        bitField0_ |= 0x00000002;
         semanticType_ = value.getNumber();
         onChanged();
         return this;
@@ -5359,7 +5194,7 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder clearSemanticType() {
-        
+        bitField0_ = (bitField0_ & ~0x00000002);
         semanticType_ = 0;
         onChanged();
         return this;
@@ -5383,7 +5218,7 @@ public final class Columns {
        * @return Whether the values field is set.
        */
       public boolean hasValues() {
-        return valuesBuilder_ != null || values_ != null;
+        return ((bitField0_ & 0x00000004) != 0);
       }
       /**
        * 
@@ -5425,11 +5260,11 @@ public final class Columns {
             throw new NullPointerException();
           }
           values_ = value;
-          onChanged();
         } else {
           valuesBuilder_.setMessage(value);
         }
-
+        bitField0_ |= 0x00000004;
+        onChanged();
         return this;
       }
       /**
@@ -5449,11 +5284,11 @@ public final class Columns {
           io.greptime.v1.Columns.Column.Values.Builder builderForValue) {
         if (valuesBuilder_ == null) {
           values_ = builderForValue.build();
-          onChanged();
         } else {
           valuesBuilder_.setMessage(builderForValue.build());
         }
-
+        bitField0_ |= 0x00000004;
+        onChanged();
         return this;
       }
       /**
@@ -5471,17 +5306,18 @@ public final class Columns {
        */
       public Builder mergeValues(io.greptime.v1.Columns.Column.Values value) {
         if (valuesBuilder_ == null) {
-          if (values_ != null) {
-            values_ =
-              io.greptime.v1.Columns.Column.Values.newBuilder(values_).mergeFrom(value).buildPartial();
+          if (((bitField0_ & 0x00000004) != 0) &&
+            values_ != null &&
+            values_ != io.greptime.v1.Columns.Column.Values.getDefaultInstance()) {
+            getValuesBuilder().mergeFrom(value);
           } else {
             values_ = value;
           }
-          onChanged();
         } else {
           valuesBuilder_.mergeFrom(value);
         }
-
+        bitField0_ |= 0x00000004;
+        onChanged();
         return this;
       }
       /**
@@ -5498,14 +5334,13 @@ public final class Columns {
        * .greptime.v1.Column.Values values = 3;
        */
       public Builder clearValues() {
-        if (valuesBuilder_ == null) {
-          values_ = null;
-          onChanged();
-        } else {
-          values_ = null;
+        bitField0_ = (bitField0_ & ~0x00000004);
+        values_ = null;
+        if (valuesBuilder_ != null) {
+          valuesBuilder_.dispose();
           valuesBuilder_ = null;
         }
-
+        onChanged();
         return this;
       }
       /**
@@ -5522,7 +5357,7 @@ public final class Columns {
        * .greptime.v1.Column.Values values = 3;
        */
       public io.greptime.v1.Columns.Column.Values.Builder getValuesBuilder() {
-        
+        bitField0_ |= 0x00000004;
         onChanged();
         return getValuesFieldBuilder().getBuilder();
       }
@@ -5599,11 +5434,9 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder setNullMask(com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         nullMask_ = value;
+        bitField0_ |= 0x00000008;
         onChanged();
         return this;
       }
@@ -5617,7 +5450,7 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder clearNullMask() {
-        
+        bitField0_ = (bitField0_ & ~0x00000008);
         nullMask_ = getDefaultInstance().getNullMask();
         onChanged();
         return this;
@@ -5645,8 +5478,8 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder setDatatypeValue(int value) {
-        
         datatype_ = value;
+        bitField0_ |= 0x00000010;
         onChanged();
         return this;
       }
@@ -5660,8 +5493,7 @@ public final class Columns {
        */
       @java.lang.Override
       public io.greptime.v1.Columns.ColumnDataType getDatatype() {
-        @SuppressWarnings("deprecation")
-        io.greptime.v1.Columns.ColumnDataType result = io.greptime.v1.Columns.ColumnDataType.valueOf(datatype_);
+        io.greptime.v1.Columns.ColumnDataType result = io.greptime.v1.Columns.ColumnDataType.forNumber(datatype_);
         return result == null ? io.greptime.v1.Columns.ColumnDataType.UNRECOGNIZED : result;
       }
       /**
@@ -5677,7 +5509,7 @@ public final class Columns {
         if (value == null) {
           throw new NullPointerException();
         }
-        
+        bitField0_ |= 0x00000010;
         datatype_ = value.getNumber();
         onChanged();
         return this;
@@ -5691,7 +5523,7 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder clearDatatype() {
-        
+        bitField0_ = (bitField0_ & ~0x00000010);
         datatype_ = 0;
         onChanged();
         return this;
@@ -5729,7 +5561,18 @@ public final class Columns {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new Column(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
@@ -5818,65 +5661,6 @@ public final class Columns {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private ColumnDef(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-            case 16: {
-              int rawValue = input.readEnum();
-
-              datatype_ = rawValue;
-              break;
-            }
-            case 24: {
-
-              isNullable_ = input.readBool();
-              break;
-            }
-            case 34: {
-
-              defaultConstraint_ = input.readBytes();
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Columns.internal_static_greptime_v1_ColumnDef_descriptor;
@@ -5891,7 +5675,8 @@ public final class Columns {
     }
 
     public static final int NAME_FIELD_NUMBER = 1;
-    private volatile java.lang.Object name_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object name_ = "";
     /**
      * string name = 1;
      * @return The name.
@@ -5929,7 +5714,7 @@ public final class Columns {
     }
 
     public static final int DATATYPE_FIELD_NUMBER = 2;
-    private int datatype_;
+    private int datatype_ = 0;
     /**
      * .greptime.v1.ColumnDataType datatype = 2;
      * @return The enum numeric value on the wire for datatype.
@@ -5942,13 +5727,12 @@ public final class Columns {
      * @return The datatype.
      */
     @java.lang.Override public io.greptime.v1.Columns.ColumnDataType getDatatype() {
-      @SuppressWarnings("deprecation")
-      io.greptime.v1.Columns.ColumnDataType result = io.greptime.v1.Columns.ColumnDataType.valueOf(datatype_);
+      io.greptime.v1.Columns.ColumnDataType result = io.greptime.v1.Columns.ColumnDataType.forNumber(datatype_);
       return result == null ? io.greptime.v1.Columns.ColumnDataType.UNRECOGNIZED : result;
     }
 
     public static final int IS_NULLABLE_FIELD_NUMBER = 3;
-    private boolean isNullable_;
+    private boolean isNullable_ = false;
     /**
      * bool is_nullable = 3;
      * @return The isNullable.
@@ -5959,7 +5743,7 @@ public final class Columns {
     }
 
     public static final int DEFAULT_CONSTRAINT_FIELD_NUMBER = 4;
-    private com.google.protobuf.ByteString defaultConstraint_;
+    private com.google.protobuf.ByteString defaultConstraint_ = com.google.protobuf.ByteString.EMPTY;
     /**
      * bytes default_constraint = 4;
      * @return The defaultConstraint.
@@ -5995,7 +5779,7 @@ public final class Columns {
       if (!defaultConstraint_.isEmpty()) {
         output.writeBytes(4, defaultConstraint_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -6019,7 +5803,7 @@ public final class Columns {
         size += com.google.protobuf.CodedOutputStream
           .computeBytesSize(4, defaultConstraint_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -6041,7 +5825,7 @@ public final class Columns {
           != other.getIsNullable()) return false;
       if (!getDefaultConstraint()
           .equals(other.getDefaultConstraint())) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -6061,7 +5845,7 @@ public final class Columns {
           getIsNullable());
       hash = (37 * hash) + DEFAULT_CONSTRAINT_FIELD_NUMBER;
       hash = (53 * hash) + getDefaultConstraint().hashCode();
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -6178,30 +5962,22 @@ public final class Columns {
 
       // Construct using io.greptime.v1.Columns.ColumnDef.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
+        bitField0_ = 0;
         name_ = "";
-
         datatype_ = 0;
-
         isNullable_ = false;
-
         defaultConstraint_ = com.google.protobuf.ByteString.EMPTY;
-
         return this;
       }
 
@@ -6228,14 +6004,27 @@ public final class Columns {
       @java.lang.Override
       public io.greptime.v1.Columns.ColumnDef buildPartial() {
         io.greptime.v1.Columns.ColumnDef result = new io.greptime.v1.Columns.ColumnDef(this);
-        result.name_ = name_;
-        result.datatype_ = datatype_;
-        result.isNullable_ = isNullable_;
-        result.defaultConstraint_ = defaultConstraint_;
+        if (bitField0_ != 0) { buildPartial0(result); }
         onBuilt();
         return result;
       }
 
+      private void buildPartial0(io.greptime.v1.Columns.ColumnDef result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.name_ = name_;
+        }
+        if (((from_bitField0_ & 0x00000002) != 0)) {
+          result.datatype_ = datatype_;
+        }
+        if (((from_bitField0_ & 0x00000004) != 0)) {
+          result.isNullable_ = isNullable_;
+        }
+        if (((from_bitField0_ & 0x00000008) != 0)) {
+          result.defaultConstraint_ = defaultConstraint_;
+        }
+      }
+
       @java.lang.Override
       public Builder clone() {
         return super.clone();
@@ -6282,6 +6071,7 @@ public final class Columns {
         if (other == io.greptime.v1.Columns.ColumnDef.getDefaultInstance()) return this;
         if (!other.getName().isEmpty()) {
           name_ = other.name_;
+          bitField0_ |= 0x00000001;
           onChanged();
         }
         if (other.datatype_ != 0) {
@@ -6293,7 +6083,7 @@ public final class Columns {
         if (other.getDefaultConstraint() != com.google.protobuf.ByteString.EMPTY) {
           setDefaultConstraint(other.getDefaultConstraint());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -6308,19 +6098,53 @@ public final class Columns {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Columns.ColumnDef parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                name_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+              case 16: {
+                datatype_ = input.readEnum();
+                bitField0_ |= 0x00000002;
+                break;
+              } // case 16
+              case 24: {
+                isNullable_ = input.readBool();
+                bitField0_ |= 0x00000004;
+                break;
+              } // case 24
+              case 34: {
+                defaultConstraint_ = input.readBytes();
+                bitField0_ |= 0x00000008;
+                break;
+              } // case 34
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Columns.ColumnDef) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
+      private int bitField0_;
 
       private java.lang.Object name_ = "";
       /**
@@ -6363,11 +6187,9 @@ public final class Columns {
        */
       public Builder setName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         name_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -6376,8 +6198,8 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder clearName() {
-        
         name_ = getDefaultInstance().getName();
+        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -6388,12 +6210,10 @@ public final class Columns {
        */
       public Builder setNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         name_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -6412,8 +6232,8 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder setDatatypeValue(int value) {
-        
         datatype_ = value;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -6423,8 +6243,7 @@ public final class Columns {
        */
       @java.lang.Override
       public io.greptime.v1.Columns.ColumnDataType getDatatype() {
-        @SuppressWarnings("deprecation")
-        io.greptime.v1.Columns.ColumnDataType result = io.greptime.v1.Columns.ColumnDataType.valueOf(datatype_);
+        io.greptime.v1.Columns.ColumnDataType result = io.greptime.v1.Columns.ColumnDataType.forNumber(datatype_);
         return result == null ? io.greptime.v1.Columns.ColumnDataType.UNRECOGNIZED : result;
       }
       /**
@@ -6436,7 +6255,7 @@ public final class Columns {
         if (value == null) {
           throw new NullPointerException();
         }
-        
+        bitField0_ |= 0x00000002;
         datatype_ = value.getNumber();
         onChanged();
         return this;
@@ -6446,7 +6265,7 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder clearDatatype() {
-        
+        bitField0_ = (bitField0_ & ~0x00000002);
         datatype_ = 0;
         onChanged();
         return this;
@@ -6469,6 +6288,7 @@ public final class Columns {
       public Builder setIsNullable(boolean value) {
         
         isNullable_ = value;
+        bitField0_ |= 0x00000004;
         onChanged();
         return this;
       }
@@ -6477,7 +6297,7 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder clearIsNullable() {
-        
+        bitField0_ = (bitField0_ & ~0x00000004);
         isNullable_ = false;
         onChanged();
         return this;
@@ -6498,11 +6318,9 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder setDefaultConstraint(com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         defaultConstraint_ = value;
+        bitField0_ |= 0x00000008;
         onChanged();
         return this;
       }
@@ -6511,7 +6329,7 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder clearDefaultConstraint() {
-        
+        bitField0_ = (bitField0_ & ~0x00000008);
         defaultConstraint_ = getDefaultInstance().getDefaultConstraint();
         onChanged();
         return this;
@@ -6549,7 +6367,18 @@ public final class Columns {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new ColumnDef(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
diff --git a/java/src/main/java/io/greptime/v1/Database.java b/java/src/main/java/io/greptime/v1/Database.java
index a5ae515..074ae90 100644
--- a/java/src/main/java/io/greptime/v1/Database.java
+++ b/java/src/main/java/io/greptime/v1/Database.java
@@ -14,3478 +14,6 @@ public final class Database {
     registerAllExtensions(
         (com.google.protobuf.ExtensionRegistryLite) registry);
   }
-  public interface RequestHeaderOrBuilder extends
-      // @@protoc_insertion_point(interface_extends:greptime.v1.RequestHeader)
-      com.google.protobuf.MessageOrBuilder {
-
-    /**
-     * 
-     * The `catalog` that is selected to be used in this request.
-     * 

-     *
-     * string catalog = 1;
-     * @return The catalog.
-     */
-    java.lang.String getCatalog();
-    /**
-     * 
-     * The `catalog` that is selected to be used in this request.
-     * 

-     *
-     * string catalog = 1;
-     * @return The bytes for catalog.
-     */
-    com.google.protobuf.ByteString
-        getCatalogBytes();
-
-    /**
-     * 
-     * The `schema` that is selected to be used in this request.
-     * 

-     *
-     * string schema = 2;
-     * @return The schema.
-     */
-    java.lang.String getSchema();
-    /**
-     * 
-     * The `schema` that is selected to be used in this request.
-     * 

-     *
-     * string schema = 2;
-     * @return The bytes for schema.
-     */
-    com.google.protobuf.ByteString
-        getSchemaBytes();
-
-    /**
-     * 
-     * The `authorization` header, much like http's authorization header.
-     * 

-     *
-     * .greptime.v1.AuthHeader authorization = 3;
-     * @return Whether the authorization field is set.
-     */
-    boolean hasAuthorization();
-    /**
-     * 
-     * The `authorization` header, much like http's authorization header.
-     * 

-     *
-     * .greptime.v1.AuthHeader authorization = 3;
-     * @return The authorization.
-     */
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-                  (java.lang.String) ref);
-          catalog_ = b;
-          return b;
-        } else {
-          return (com.google.protobuf.ByteString) ref;
-        }
-      }
-      /**
-       * 
-       * The `catalog` that is selected to be used in this request.
-       * 

-       *
-       * string catalog = 1;
-       * @param value The catalog to set.
-       * @return This builder for chaining.
-       */
-      public Builder setCatalog(
-          java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
-        catalog_ = value;
-        onChanged();
-        return this;
-      }
-      /**
-       * 
-       * The `catalog` that is selected to be used in this request.
-       * 

-       *
-       * string catalog = 1;
-       * @return This builder for chaining.
-       */
-      public Builder clearCatalog() {
-        
-        catalog_ = getDefaultInstance().getCatalog();
-        onChanged();
-        return this;
-      }
-      /**
-       * 
-       * The `catalog` that is selected to be used in this request.
-       * 

-       *
-       * string catalog = 1;
-       * @param value The bytes for catalog to set.
-       * @return This builder for chaining.
-       */
-      public Builder setCatalogBytes(
-          com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
-        catalog_ = value;
-        onChanged();
-        return this;
-      }
-
-      private java.lang.Object schema_ = "";
-      /**
-       * 
-       * The `schema` that is selected to be used in this request.
-       * 

-       *
-       * string schema = 2;
-       * @return The schema.
-       */
-      public java.lang.String getSchema() {
-        java.lang.Object ref = schema_;
-        if (!(ref instanceof java.lang.String)) {
-          com.google.protobuf.ByteString bs =
-              (com.google.protobuf.ByteString) ref;
-          java.lang.String s = bs.toStringUtf8();
-          schema_ = s;
-          return s;
-        } else {
-          return (java.lang.String) ref;
-        }
-      }
-      /**
-       * 
-       * The `schema` that is selected to be used in this request.
-       * 

-       *
-       * string schema = 2;
-       * @return The bytes for schema.
-       */
-      public com.google.protobuf.ByteString
-          getSchemaBytes() {
-        java.lang.Object ref = schema_;
-        if (ref instanceof String) {
-          com.google.protobuf.ByteString b = 
-              com.google.protobuf.ByteString.copyFromUtf8(
-                  (java.lang.String) ref);
-          schema_ = b;
-          return b;
-        } else {
-          return (com.google.protobuf.ByteString) ref;
-        }
-      }
-      /**
-       * 
-       * The `schema` that is selected to be used in this request.
-       * 

-       *
-       * string schema = 2;
-       * @param value The schema to set.
-       * @return This builder for chaining.
-       */
-      public Builder setSchema(
-          java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
-        schema_ = value;
-        onChanged();
-        return this;
-      }
-      /**
-       * 
-       * The `schema` that is selected to be used in this request.
-       * 

-       *
-       * string schema = 2;
-       * @return This builder for chaining.
-       */
-      public Builder clearSchema() {
-        
-        schema_ = getDefaultInstance().getSchema();
-        onChanged();
-        return this;
-      }
-      /**
-       * 
-       * The `schema` that is selected to be used in this request.
-       * 

-       *
-       * string schema = 2;
-       * @param value The bytes for schema to set.
-       * @return This builder for chaining.
-       */
-      public Builder setSchemaBytes(
-          com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
-        schema_ = value;
-        onChanged();
-        return this;
-      }
-
-      private io.greptime.v1.Database.AuthHeader authorization_;
-      private com.google.protobuf.SingleFieldBuilderV3<
-          io.greptime.v1.Database.AuthHeader, io.greptime.v1.Database.AuthHeader.Builder, io.greptime.v1.Database.AuthHeaderOrBuilder> authorizationBuilder_;
-      /**
-       * 
-       * The `authorization` header, much like http's authorization header.
-       * 

-       *
-       * .greptime.v1.AuthHeader authorization = 3;
-       * @return Whether the authorization field is set.
-       */
-      public boolean hasAuthorization() {
-        return authorizationBuilder_ != null || authorization_ != null;
-      }
-      /**
-       * 
-       * The `authorization` header, much like http's authorization header.
-       * 

-       *
-       * .greptime.v1.AuthHeader authorization = 3;
-       * @return The authorization.
-       */
-      public io.greptime.v1.Database.AuthHeader getAuthorization() {
-        if (authorizationBuilder_ == null) {
-          return authorization_ == null ? io.greptime.v1.Database.AuthHeader.getDefaultInstance() : authorization_;
-        } else {
-          return authorizationBuilder_.getMessage();
-        }
-      }
-      /**
-       * 
-       * The `authorization` header, much like http's authorization header.
-       * 

-       *
-       * .greptime.v1.AuthHeader authorization = 3;
-       */
-      public Builder setAuthorization(io.greptime.v1.Database.AuthHeader value) {
-        if (authorizationBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          authorization_ = value;
-          onChanged();
-        } else {
-          authorizationBuilder_.setMessage(value);
-        }
-
-        return this;
-      }
-      /**
-       * 
-       * The `authorization` header, much like http's authorization header.
-       * 

-       *
-       * .greptime.v1.AuthHeader authorization = 3;
-       */
-      public Builder setAuthorization(
-          io.greptime.v1.Database.AuthHeader.Builder builderForValue) {
-        if (authorizationBuilder_ == null) {
-          authorization_ = builderForValue.build();
-          onChanged();
-        } else {
-          authorizationBuilder_.setMessage(builderForValue.build());
-        }
-
-        return this;
-      }
-      /**
-       * 
-       * The `authorization` header, much like http's authorization header.
-       * 

-       *
-       * .greptime.v1.AuthHeader authorization = 3;
-       */
-      public Builder mergeAuthorization(io.greptime.v1.Database.AuthHeader value) {
-        if (authorizationBuilder_ == null) {
-          if (authorization_ != null) {
-            authorization_ =
-              io.greptime.v1.Database.AuthHeader.newBuilder(authorization_).mergeFrom(value).buildPartial();
-          } else {
-            authorization_ = value;
-          }
-          onChanged();
-        } else {
-          authorizationBuilder_.mergeFrom(value);
-        }
-
-        return this;
-      }
-      /**
-       * 
-       * The `authorization` header, much like http's authorization header.
-       * 

-       *
-       * .greptime.v1.AuthHeader authorization = 3;
-       */
-      public Builder clearAuthorization() {
-        if (authorizationBuilder_ == null) {
-          authorization_ = null;
-          onChanged();
-        } else {
-          authorization_ = null;
-          authorizationBuilder_ = null;
-        }
-
-        return this;
-      }
-      /**
-       * 
-       * The `authorization` header, much like http's authorization header.
-       * 

-       *
-       * .greptime.v1.AuthHeader authorization = 3;
-       */
-      public io.greptime.v1.Database.AuthHeader.Builder getAuthorizationBuilder() {
-        
-        onChanged();
-        return getAuthorizationFieldBuilder().getBuilder();
-      }
-      /**
-       * 
-       * The `authorization` header, much like http's authorization header.
-       * 

-       *
-       * .greptime.v1.AuthHeader authorization = 3;
-       */
-      public io.greptime.v1.Database.AuthHeaderOrBuilder getAuthorizationOrBuilder() {
-        if (authorizationBuilder_ != null) {
-          return authorizationBuilder_.getMessageOrBuilder();
-        } else {
-          return authorization_ == null ?
-              io.greptime.v1.Database.AuthHeader.getDefaultInstance() : authorization_;
-        }
-      }
-      /**
-       * 
-       * The `authorization` header, much like http's authorization header.
-       * 

-       *
-       * .greptime.v1.AuthHeader authorization = 3;
-       */
-      private com.google.protobuf.SingleFieldBuilderV3<
-          io.greptime.v1.Database.AuthHeader, io.greptime.v1.Database.AuthHeader.Builder, io.greptime.v1.Database.AuthHeaderOrBuilder> 
-          getAuthorizationFieldBuilder() {
-        if (authorizationBuilder_ == null) {
-          authorizationBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
-              io.greptime.v1.Database.AuthHeader, io.greptime.v1.Database.AuthHeader.Builder, io.greptime.v1.Database.AuthHeaderOrBuilder>(
-                  getAuthorization(),
-                  getParentForChildren(),
-                  isClean());
-          authorization_ = null;
-        }
-        return authorizationBuilder_;
-      }
-
-      private java.lang.Object dbname_ = "";
-      /**
-       * 
-       * The `dbname` for the request
-       * 

-       *
-       * string dbname = 4;
-       * @return The dbname.
-       */
-      public java.lang.String getDbname() {
-        java.lang.Object ref = dbname_;
-        if (!(ref instanceof java.lang.String)) {
-          com.google.protobuf.ByteString bs =
-              (com.google.protobuf.ByteString) ref;
-          java.lang.String s = bs.toStringUtf8();
-          dbname_ = s;
-          return s;
-        } else {
-          return (java.lang.String) ref;
-        }
-      }
-      /**
-       * 
-       * The `dbname` for the request
-       * 

-       *
-       * string dbname = 4;
-       * @return The bytes for dbname.
-       */
-      public com.google.protobuf.ByteString
-          getDbnameBytes() {
-        java.lang.Object ref = dbname_;
-        if (ref instanceof String) {
-          com.google.protobuf.ByteString b = 
-              com.google.protobuf.ByteString.copyFromUtf8(
-                  (java.lang.String) ref);
-          dbname_ = b;
-          return b;
-        } else {
-          return (com.google.protobuf.ByteString) ref;
-        }
-      }
-      /**
-       * 
-       * The `dbname` for the request
-       * 

-       *
-       * string dbname = 4;
-       * @param value The dbname to set.
-       * @return This builder for chaining.
-       */
-      public Builder setDbname(
-          java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
-        dbname_ = value;
-        onChanged();
-        return this;
-      }
-      /**
-       * 
-       * The `dbname` for the request
-       * 

-       *
-       * string dbname = 4;
-       * @return This builder for chaining.
-       */
-      public Builder clearDbname() {
-        
-        dbname_ = getDefaultInstance().getDbname();
-        onChanged();
-        return this;
-      }
-      /**
-       * 
-       * The `dbname` for the request
-       * 

-       *
-       * string dbname = 4;
-       * @param value The bytes for dbname to set.
-       * @return This builder for chaining.
-       */
-      public Builder setDbnameBytes(
-          com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
-        dbname_ = value;
-        onChanged();
-        return this;
-      }
-      @java.lang.Override
-      public final Builder setUnknownFields(
-          final com.google.protobuf.UnknownFieldSet unknownFields) {
-        return super.setUnknownFields(unknownFields);
-      }
-
-      @java.lang.Override
-      public final Builder mergeUnknownFields(
-          final com.google.protobuf.UnknownFieldSet unknownFields) {
-        return super.mergeUnknownFields(unknownFields);
-      }
-
-
-      // @@protoc_insertion_point(builder_scope:greptime.v1.RequestHeader)
-    }
-
-    // @@protoc_insertion_point(class_scope:greptime.v1.RequestHeader)
-    private static final io.greptime.v1.Database.RequestHeader DEFAULT_INSTANCE;
-    static {
-      DEFAULT_INSTANCE = new io.greptime.v1.Database.RequestHeader();
-    }
-
-    public static io.greptime.v1.Database.RequestHeader getDefaultInstance() {
-      return DEFAULT_INSTANCE;
-    }
-
-    private static final com.google.protobuf.Parser
-        PARSER = new com.google.protobuf.AbstractParser() {
-      @java.lang.Override
-      public RequestHeader parsePartialFrom(
-          com.google.protobuf.CodedInputStream input,
-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws com.google.protobuf.InvalidProtocolBufferException {
-        return new RequestHeader(input, extensionRegistry);
-      }
-    };
-
-    public static com.google.protobuf.Parser parser() {
-      return PARSER;
-    }
-
-    @java.lang.Override
-    public com.google.protobuf.Parser getParserForType() {
-      return PARSER;
-    }
-
-    @java.lang.Override
-    public io.greptime.v1.Database.RequestHeader getDefaultInstanceForType() {
-      return DEFAULT_INSTANCE;
-    }
-
-  }
-
-  public interface AuthHeaderOrBuilder extends
-      // @@protoc_insertion_point(interface_extends:greptime.v1.AuthHeader)
-      com.google.protobuf.MessageOrBuilder {
-
-    /**
-     * .greptime.v1.Basic basic = 1;
-     * @return Whether the basic field is set.
-     */
-    boolean hasBasic();
-    /**
-     * .greptime.v1.Basic basic = 1;
-     * @return The basic.
-     */
-    io.greptime.v1.Database.Basic getBasic();
-    /**
-     * .greptime.v1.Basic basic = 1;
-     */
-    io.greptime.v1.Database.BasicOrBuilder getBasicOrBuilder();
-
-    /**
-     * .greptime.v1.Token token = 2;
-     * @return Whether the token field is set.
-     */
-    boolean hasToken();
-    /**
-     * .greptime.v1.Token token = 2;
-     * @return The token.
-     */
-    io.greptime.v1.Database.Token getToken();
-    /**
-     * .greptime.v1.Token token = 2;
-     */
-    io.greptime.v1.Database.TokenOrBuilder getTokenOrBuilder();
-
-    public io.greptime.v1.Database.AuthHeader.AuthSchemeCase getAuthSchemeCase();
-  }
-  /**
-   * Protobuf type {@code greptime.v1.AuthHeader}
-   */
-  public static final class AuthHeader extends
-      com.google.protobuf.GeneratedMessageV3 implements
-      // @@protoc_insertion_point(message_implements:greptime.v1.AuthHeader)
-      AuthHeaderOrBuilder {
-  private static final long serialVersionUID = 0L;
-    // Use AuthHeader.newBuilder() to construct.
-    private AuthHeader(com.google.protobuf.GeneratedMessageV3.Builder builder) {
-      super(builder);
-    }
-    private AuthHeader() {
-    }
-
-    @java.lang.Override
-    @SuppressWarnings({"unused"})
-    protected java.lang.Object newInstance(
-        UnusedPrivateParameter unused) {
-      return new AuthHeader();
-    }
-
-    @java.lang.Override
-    public final com.google.protobuf.UnknownFieldSet
-    getUnknownFields() {
-      return this.unknownFields;
-    }
-    private AuthHeader(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              io.greptime.v1.Database.Basic.Builder subBuilder = null;
-              if (authSchemeCase_ == 1) {
-                subBuilder = ((io.greptime.v1.Database.Basic) authScheme_).toBuilder();
-              }
-              authScheme_ =
-                  input.readMessage(io.greptime.v1.Database.Basic.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((io.greptime.v1.Database.Basic) authScheme_);
-                authScheme_ = subBuilder.buildPartial();
-              }
-              authSchemeCase_ = 1;
-              break;
-            }
-            case 18: {
-              io.greptime.v1.Database.Token.Builder subBuilder = null;
-              if (authSchemeCase_ == 2) {
-                subBuilder = ((io.greptime.v1.Database.Token) authScheme_).toBuilder();
-              }
-              authScheme_ =
-                  input.readMessage(io.greptime.v1.Database.Token.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((io.greptime.v1.Database.Token) authScheme_);
-                authScheme_ = subBuilder.buildPartial();
-              }
-              authSchemeCase_ = 2;
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-    public static final com.google.protobuf.Descriptors.Descriptor
-        getDescriptor() {
-      return io.greptime.v1.Database.internal_static_greptime_v1_AuthHeader_descriptor;
-    }
-
-    @java.lang.Override
-    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-        internalGetFieldAccessorTable() {
-      return io.greptime.v1.Database.internal_static_greptime_v1_AuthHeader_fieldAccessorTable
-          .ensureFieldAccessorsInitialized(
-              io.greptime.v1.Database.AuthHeader.class, io.greptime.v1.Database.AuthHeader.Builder.class);
-    }
-
-    private int authSchemeCase_ = 0;
-    private java.lang.Object authScheme_;
-    public enum AuthSchemeCase
-        implements com.google.protobuf.Internal.EnumLite,
-            com.google.protobuf.AbstractMessage.InternalOneOfEnum {
-      BASIC(1),
-      TOKEN(2),
-      AUTHSCHEME_NOT_SET(0);
-      private final int value;
-      private AuthSchemeCase(int value) {
-        this.value = value;
-      }
-      /**
-       * @param value The number of the enum to look for.
-       * @return The enum associated with the given number.
-       * @deprecated Use {@link #forNumber(int)} instead.
-       */
-      @java.lang.Deprecated
-      public static AuthSchemeCase valueOf(int value) {
-        return forNumber(value);
-      }
-
-      public static AuthSchemeCase forNumber(int value) {
-        switch (value) {
-          case 1: return BASIC;
-          case 2: return TOKEN;
-          case 0: return AUTHSCHEME_NOT_SET;
-          default: return null;
-        }
-      }
-      public int getNumber() {
-        return this.value;
-      }
-    };
-
-    public AuthSchemeCase
-    getAuthSchemeCase() {
-      return AuthSchemeCase.forNumber(
-          authSchemeCase_);
-    }
-
-    public static final int BASIC_FIELD_NUMBER = 1;
-    /**
-     * .greptime.v1.Basic basic = 1;
-     * @return Whether the basic field is set.
-     */
-    @java.lang.Override
-    public boolean hasBasic() {
-      return authSchemeCase_ == 1;
-    }
-    /**
-     * .greptime.v1.Basic basic = 1;
-     * @return The basic.
-     */
-    @java.lang.Override
-    public io.greptime.v1.Database.Basic getBasic() {
-      if (authSchemeCase_ == 1) {
-         return (io.greptime.v1.Database.Basic) authScheme_;
-      }
-      return io.greptime.v1.Database.Basic.getDefaultInstance();
-    }
-    /**
-     * .greptime.v1.Basic basic = 1;
-     */
-    @java.lang.Override
-    public io.greptime.v1.Database.BasicOrBuilder getBasicOrBuilder() {
-      if (authSchemeCase_ == 1) {
-         return (io.greptime.v1.Database.Basic) authScheme_;
-      }
-      return io.greptime.v1.Database.Basic.getDefaultInstance();
-    }
-
-    public static final int TOKEN_FIELD_NUMBER = 2;
-    /**
-     * .greptime.v1.Token token = 2;
-     * @return Whether the token field is set.
-     */
-    @java.lang.Override
-    public boolean hasToken() {
-      return authSchemeCase_ == 2;
-    }
-    /**
-     * .greptime.v1.Token token = 2;
-     * @return The token.
-     */
-    @java.lang.Override
-    public io.greptime.v1.Database.Token getToken() {
-      if (authSchemeCase_ == 2) {
-         return (io.greptime.v1.Database.Token) authScheme_;
-      }
-      return io.greptime.v1.Database.Token.getDefaultInstance();
-    }
-    /**
-     * .greptime.v1.Token token = 2;
-     */
-    @java.lang.Override
-    public io.greptime.v1.Database.TokenOrBuilder getTokenOrBuilder() {
-      if (authSchemeCase_ == 2) {
-         return (io.greptime.v1.Database.Token) authScheme_;
-      }
-      return io.greptime.v1.Database.Token.getDefaultInstance();
-    }
-
-    private byte memoizedIsInitialized = -1;
-    @java.lang.Override
-    public final boolean isInitialized() {
-      byte isInitialized = memoizedIsInitialized;
-      if (isInitialized == 1) return true;
-      if (isInitialized == 0) return false;
-
-      memoizedIsInitialized = 1;
-      return true;
-    }
-
-    @java.lang.Override
-    public void writeTo(com.google.protobuf.CodedOutputStream output)
-                        throws java.io.IOException {
-      if (authSchemeCase_ == 1) {
-        output.writeMessage(1, (io.greptime.v1.Database.Basic) authScheme_);
-      }
-      if (authSchemeCase_ == 2) {
-        output.writeMessage(2, (io.greptime.v1.Database.Token) authScheme_);
-      }
-      unknownFields.writeTo(output);
-    }
-
-    @java.lang.Override
-    public int getSerializedSize() {
-      int size = memoizedSize;
-      if (size != -1) return size;
-
-      size = 0;
-      if (authSchemeCase_ == 1) {
-        size += com.google.protobuf.CodedOutputStream
-          .computeMessageSize(1, (io.greptime.v1.Database.Basic) authScheme_);
-      }
-      if (authSchemeCase_ == 2) {
-        size += com.google.protobuf.CodedOutputStream
-          .computeMessageSize(2, (io.greptime.v1.Database.Token) authScheme_);
-      }
-      size += unknownFields.getSerializedSize();
-      memoizedSize = size;
-      return size;
-    }
-
-    @java.lang.Override
-    public boolean equals(final java.lang.Object obj) {
-      if (obj == this) {
-       return true;
-      }
-      if (!(obj instanceof io.greptime.v1.Database.AuthHeader)) {
-        return super.equals(obj);
-      }
-      io.greptime.v1.Database.AuthHeader other = (io.greptime.v1.Database.AuthHeader) obj;
-
-      if (!getAuthSchemeCase().equals(other.getAuthSchemeCase())) return false;
-      switch (authSchemeCase_) {
-        case 1:
-          if (!getBasic()
-              .equals(other.getBasic())) return false;
-          break;
-        case 2:
-          if (!getToken()
-              .equals(other.getToken())) return false;
-          break;
-        case 0:
-        default:
-      }
-      if (!unknownFields.equals(other.unknownFields)) return false;
-      return true;
-    }
-
-    @java.lang.Override
-    public int hashCode() {
-      if (memoizedHashCode != 0) {
-        return memoizedHashCode;
-      }
-      int hash = 41;
-      hash = (19 * hash) + getDescriptor().hashCode();
-      switch (authSchemeCase_) {
-        case 1:
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-      return this == DEFAULT_INSTANCE
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-    /**
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-    public static final class Builder extends
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-        // @@protoc_insertion_point(builder_implements:greptime.v1.AuthHeader)
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-      public static final com.google.protobuf.Descriptors.Descriptor
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-      // Construct using io.greptime.v1.Database.AuthHeader.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
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-      private Builder(
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-        authSchemeCase_ = 0;
-        authScheme_ = null;
-        return this;
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-      @java.lang.Override
-      public com.google.protobuf.Descriptors.Descriptor
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-      @java.lang.Override
-      public io.greptime.v1.Database.AuthHeader getDefaultInstanceForType() {
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-      @java.lang.Override
-      public io.greptime.v1.Database.AuthHeader build() {
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-        if (!result.isInitialized()) {
-          throw newUninitializedMessageException(result);
-        }
-        return result;
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-      @java.lang.Override
-      public io.greptime.v1.Database.AuthHeader buildPartial() {
-        io.greptime.v1.Database.AuthHeader result = new io.greptime.v1.Database.AuthHeader(this);
-        if (authSchemeCase_ == 1) {
-          if (basicBuilder_ == null) {
-            result.authScheme_ = authScheme_;
-          } else {
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-            result.authScheme_ = authScheme_;
-          } else {
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-          }
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-        result.authSchemeCase_ = authSchemeCase_;
-        onBuilt();
-        return result;
-      }
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-      @java.lang.Override
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-      public Builder mergeFrom(com.google.protobuf.Message other) {
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-          return mergeFrom((io.greptime.v1.Database.AuthHeader)other);
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-          super.mergeFrom(other);
-          return this;
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-      public Builder mergeFrom(io.greptime.v1.Database.AuthHeader other) {
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-        switch (other.getAuthSchemeCase()) {
-          case BASIC: {
-            mergeBasic(other.getBasic());
-            break;
-          }
-          case TOKEN: {
-            mergeToken(other.getToken());
-            break;
-          }
-          case AUTHSCHEME_NOT_SET: {
-            break;
-          }
-        }
-        this.mergeUnknownFields(other.unknownFields);
-        onChanged();
-        return this;
-      }
-
-      @java.lang.Override
-      public final boolean isInitialized() {
-        return true;
-      }
-
-      @java.lang.Override
-      public Builder mergeFrom(
-          com.google.protobuf.CodedInputStream input,
-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws java.io.IOException {
-        io.greptime.v1.Database.AuthHeader parsedMessage = null;
-        try {
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-        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Database.AuthHeader) e.getUnfinishedMessage();
-          throw e.unwrapIOException();
-        } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
-        return this;
-      }
-      private int authSchemeCase_ = 0;
-      private java.lang.Object authScheme_;
-      public AuthSchemeCase
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-            authSchemeCase_);
-      }
-
-      public Builder clearAuthScheme() {
-        authSchemeCase_ = 0;
-        authScheme_ = null;
-        onChanged();
-        return this;
-      }
-
-
-      private com.google.protobuf.SingleFieldBuilderV3<
-          io.greptime.v1.Database.Basic, io.greptime.v1.Database.Basic.Builder, io.greptime.v1.Database.BasicOrBuilder> basicBuilder_;
-      /**
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-       * @return Whether the basic field is set.
-       */
-      @java.lang.Override
-      public boolean hasBasic() {
-        return authSchemeCase_ == 1;
-      }
-      /**
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-       */
-      @java.lang.Override
-      public io.greptime.v1.Database.Basic getBasic() {
-        if (basicBuilder_ == null) {
-          if (authSchemeCase_ == 1) {
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-      /**
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-       */
-      public Builder setBasic(io.greptime.v1.Database.Basic value) {
-        if (basicBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          authScheme_ = value;
-          onChanged();
-        } else {
-          basicBuilder_.setMessage(value);
-        }
-        authSchemeCase_ = 1;
-        return this;
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-      /**
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-       */
-      public Builder setBasic(
-          io.greptime.v1.Database.Basic.Builder builderForValue) {
-        if (basicBuilder_ == null) {
-          authScheme_ = builderForValue.build();
-          onChanged();
-        } else {
-          basicBuilder_.setMessage(builderForValue.build());
-        }
-        authSchemeCase_ = 1;
-        return this;
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-      /**
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-      public Builder mergeBasic(io.greptime.v1.Database.Basic value) {
-        if (basicBuilder_ == null) {
-          if (authSchemeCase_ == 1 &&
-              authScheme_ != io.greptime.v1.Database.Basic.getDefaultInstance()) {
-            authScheme_ = io.greptime.v1.Database.Basic.newBuilder((io.greptime.v1.Database.Basic) authScheme_)
-                .mergeFrom(value).buildPartial();
-          } else {
-            authScheme_ = value;
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-        } else {
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-            basicBuilder_.mergeFrom(value);
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-          basicBuilder_.setMessage(value);
-        }
-        authSchemeCase_ = 1;
-        return this;
-      }
-      /**
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-       */
-      public Builder clearBasic() {
-        if (basicBuilder_ == null) {
-          if (authSchemeCase_ == 1) {
-            authSchemeCase_ = 0;
-            authScheme_ = null;
-            onChanged();
-          }
-        } else {
-          if (authSchemeCase_ == 1) {
-            authSchemeCase_ = 0;
-            authScheme_ = null;
-          }
-          basicBuilder_.clear();
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-        return this;
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-      /**
-       * .greptime.v1.Basic basic = 1;
-       */
-      public io.greptime.v1.Database.Basic.Builder getBasicBuilder() {
-        return getBasicFieldBuilder().getBuilder();
-      }
-      /**
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-       */
-      @java.lang.Override
-      public io.greptime.v1.Database.BasicOrBuilder getBasicOrBuilder() {
-        if ((authSchemeCase_ == 1) && (basicBuilder_ != null)) {
-          return basicBuilder_.getMessageOrBuilder();
-        } else {
-          if (authSchemeCase_ == 1) {
-            return (io.greptime.v1.Database.Basic) authScheme_;
-          }
-          return io.greptime.v1.Database.Basic.getDefaultInstance();
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-      /**
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-      private com.google.protobuf.SingleFieldBuilderV3<
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-          getBasicFieldBuilder() {
-        if (basicBuilder_ == null) {
-          if (!(authSchemeCase_ == 1)) {
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-          }
-          basicBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
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-                  (io.greptime.v1.Database.Basic) authScheme_,
-                  getParentForChildren(),
-                  isClean());
-          authScheme_ = null;
-        }
-        authSchemeCase_ = 1;
-        onChanged();;
-        return basicBuilder_;
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-
-      private com.google.protobuf.SingleFieldBuilderV3<
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-      /**
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-       * @return Whether the token field is set.
-       */
-      @java.lang.Override
-      public boolean hasToken() {
-        return authSchemeCase_ == 2;
-      }
-      /**
-       * .greptime.v1.Token token = 2;
-       * @return The token.
-       */
-      @java.lang.Override
-      public io.greptime.v1.Database.Token getToken() {
-        if (tokenBuilder_ == null) {
-          if (authSchemeCase_ == 2) {
-            return (io.greptime.v1.Database.Token) authScheme_;
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-          return io.greptime.v1.Database.Token.getDefaultInstance();
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-            return tokenBuilder_.getMessage();
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-          return io.greptime.v1.Database.Token.getDefaultInstance();
-        }
-      }
-      /**
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-       */
-      public Builder setToken(io.greptime.v1.Database.Token value) {
-        if (tokenBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          authScheme_ = value;
-          onChanged();
-        } else {
-          tokenBuilder_.setMessage(value);
-        }
-        authSchemeCase_ = 2;
-        return this;
-      }
-      /**
-       * .greptime.v1.Token token = 2;
-       */
-      public Builder setToken(
-          io.greptime.v1.Database.Token.Builder builderForValue) {
-        if (tokenBuilder_ == null) {
-          authScheme_ = builderForValue.build();
-          onChanged();
-        } else {
-          tokenBuilder_.setMessage(builderForValue.build());
-        }
-        authSchemeCase_ = 2;
-        return this;
-      }
-      /**
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-      public Builder mergeToken(io.greptime.v1.Database.Token value) {
-        if (tokenBuilder_ == null) {
-          if (authSchemeCase_ == 2 &&
-              authScheme_ != io.greptime.v1.Database.Token.getDefaultInstance()) {
-            authScheme_ = io.greptime.v1.Database.Token.newBuilder((io.greptime.v1.Database.Token) authScheme_)
-                .mergeFrom(value).buildPartial();
-          } else {
-            authScheme_ = value;
-          }
-          onChanged();
-        } else {
-          if (authSchemeCase_ == 2) {
-            tokenBuilder_.mergeFrom(value);
-          }
-          tokenBuilder_.setMessage(value);
-        }
-        authSchemeCase_ = 2;
-        return this;
-      }
-      /**
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-       */
-      public Builder clearToken() {
-        if (tokenBuilder_ == null) {
-          if (authSchemeCase_ == 2) {
-            authSchemeCase_ = 0;
-            authScheme_ = null;
-            onChanged();
-          }
-        } else {
-          if (authSchemeCase_ == 2) {
-            authSchemeCase_ = 0;
-            authScheme_ = null;
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-          tokenBuilder_.clear();
-        }
-        return this;
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-      /**
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-      public io.greptime.v1.Database.Token.Builder getTokenBuilder() {
-        return getTokenFieldBuilder().getBuilder();
-      }
-      /**
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-       */
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-      public io.greptime.v1.Database.TokenOrBuilder getTokenOrBuilder() {
-        if ((authSchemeCase_ == 2) && (tokenBuilder_ != null)) {
-          return tokenBuilder_.getMessageOrBuilder();
-        } else {
-          if (authSchemeCase_ == 2) {
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-          }
-          return io.greptime.v1.Database.Token.getDefaultInstance();
-        }
-      }
-      /**
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-          getTokenFieldBuilder() {
-        if (tokenBuilder_ == null) {
-          if (!(authSchemeCase_ == 2)) {
-            authScheme_ = io.greptime.v1.Database.Token.getDefaultInstance();
-          }
-          tokenBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
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-                  getParentForChildren(),
-                  isClean());
-          authScheme_ = null;
-        }
-        authSchemeCase_ = 2;
-        onChanged();;
-        return tokenBuilder_;
-      }
-      @java.lang.Override
-      public final Builder setUnknownFields(
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-        return super.setUnknownFields(unknownFields);
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-
-      @java.lang.Override
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-        return super.mergeUnknownFields(unknownFields);
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-
-      // @@protoc_insertion_point(builder_scope:greptime.v1.AuthHeader)
-    }
-
-    // @@protoc_insertion_point(class_scope:greptime.v1.AuthHeader)
-    private static final io.greptime.v1.Database.AuthHeader DEFAULT_INSTANCE;
-    static {
-      DEFAULT_INSTANCE = new io.greptime.v1.Database.AuthHeader();
-    }
-
-    public static io.greptime.v1.Database.AuthHeader getDefaultInstance() {
-      return DEFAULT_INSTANCE;
-    }
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-    private static final com.google.protobuf.Parser
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-      @java.lang.Override
-      public AuthHeader parsePartialFrom(
-          com.google.protobuf.CodedInputStream input,
-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws com.google.protobuf.InvalidProtocolBufferException {
-        return new AuthHeader(input, extensionRegistry);
-      }
-    };
-
-    public static com.google.protobuf.Parser parser() {
-      return PARSER;
-    }
-
-    @java.lang.Override
-    public com.google.protobuf.Parser getParserForType() {
-      return PARSER;
-    }
-
-    @java.lang.Override
-    public io.greptime.v1.Database.AuthHeader getDefaultInstanceForType() {
-      return DEFAULT_INSTANCE;
-    }
-
-  }
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-  public interface BasicOrBuilder extends
-      // @@protoc_insertion_point(interface_extends:greptime.v1.Basic)
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-
-    /**
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-     * @return The username.
-     */
-    java.lang.String getUsername();
-    /**
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-     * @return The bytes for username.
-     */
-    com.google.protobuf.ByteString
-        getUsernameBytes();
-
-    /**
-     * string password = 2;
-     * @return The password.
-     */
-    java.lang.String getPassword();
-    /**
-     * string password = 2;
-     * @return The bytes for password.
-     */
-    com.google.protobuf.ByteString
-        getPasswordBytes();
-  }
-  /**
-   * Protobuf type {@code greptime.v1.Basic}
-   */
-  public static final class Basic extends
-      com.google.protobuf.GeneratedMessageV3 implements
-      // @@protoc_insertion_point(message_implements:greptime.v1.Basic)
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-    // Use Basic.newBuilder() to construct.
-    private Basic(com.google.protobuf.GeneratedMessageV3.Builder builder) {
-      super(builder);
-    }
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-      username_ = "";
-      password_ = "";
-    }
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-    @java.lang.Override
-    @SuppressWarnings({"unused"})
-    protected java.lang.Object newInstance(
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-      return new Basic();
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-    @java.lang.Override
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-      return this.unknownFields;
-    }
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-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
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-        throw new java.lang.NullPointerException();
-      }
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-              done = true;
-              break;
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-
-              username_ = s;
-              break;
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-
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-      return DEFAULT_INSTANCE;
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-
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-        PARSER = new com.google.protobuf.AbstractParser() {
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-          com.google.protobuf.CodedInputStream input,
-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws com.google.protobuf.InvalidProtocolBufferException {
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-
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-    public com.google.protobuf.Parser getParserForType() {
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-
   public interface GreptimeRequestOrBuilder extends
       // @@protoc_insertion_point(interface_extends:greptime.v1.GreptimeRequest)
       com.google.protobuf.MessageOrBuilder {
@@ -3499,11 +27,11 @@ public final class Database {
      * .greptime.v1.RequestHeader header = 1;
      * @return The header.
      */
-    io.greptime.v1.Database.RequestHeader getHeader();
+    io.greptime.v1.Common.RequestHeader getHeader();
     /**
      * .greptime.v1.RequestHeader header = 1;
      */
-    io.greptime.v1.Database.RequestHeaderOrBuilder getHeaderOrBuilder();
+    io.greptime.v1.Common.RequestHeaderOrBuilder getHeaderOrBuilder();
 
     /**
      * .greptime.v1.InsertRequest insert = 2;
@@ -3550,6 +78,21 @@ public final class Database {
      */
     io.greptime.v1.Ddl.DdlRequestOrBuilder getDdlOrBuilder();
 
+    /**
+     * .greptime.v1.DeleteRequest delete = 5;
+     * @return Whether the delete field is set.
+     */
+    boolean hasDelete();
+    /**
+     * .greptime.v1.DeleteRequest delete = 5;
+     * @return The delete.
+     */
+    io.greptime.v1.Database.DeleteRequest getDelete();
+    /**
+     * .greptime.v1.DeleteRequest delete = 5;
+     */
+    io.greptime.v1.Database.DeleteRequestOrBuilder getDeleteOrBuilder();
+
     public io.greptime.v1.Database.GreptimeRequest.RequestCase getRequestCase();
   }
   /**
@@ -3579,98 +122,6 @@ public final class Database {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private GreptimeRequest(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              io.greptime.v1.Database.RequestHeader.Builder subBuilder = null;
-              if (header_ != null) {
-                subBuilder = header_.toBuilder();
-              }
-              header_ = input.readMessage(io.greptime.v1.Database.RequestHeader.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(header_);
-                header_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-            case 18: {
-              io.greptime.v1.Database.InsertRequest.Builder subBuilder = null;
-              if (requestCase_ == 2) {
-                subBuilder = ((io.greptime.v1.Database.InsertRequest) request_).toBuilder();
-              }
-              request_ =
-                  input.readMessage(io.greptime.v1.Database.InsertRequest.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((io.greptime.v1.Database.InsertRequest) request_);
-                request_ = subBuilder.buildPartial();
-              }
-              requestCase_ = 2;
-              break;
-            }
-            case 26: {
-              io.greptime.v1.Database.QueryRequest.Builder subBuilder = null;
-              if (requestCase_ == 3) {
-                subBuilder = ((io.greptime.v1.Database.QueryRequest) request_).toBuilder();
-              }
-              request_ =
-                  input.readMessage(io.greptime.v1.Database.QueryRequest.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((io.greptime.v1.Database.QueryRequest) request_);
-                request_ = subBuilder.buildPartial();
-              }
-              requestCase_ = 3;
-              break;
-            }
-            case 34: {
-              io.greptime.v1.Ddl.DdlRequest.Builder subBuilder = null;
-              if (requestCase_ == 4) {
-                subBuilder = ((io.greptime.v1.Ddl.DdlRequest) request_).toBuilder();
-              }
-              request_ =
-                  input.readMessage(io.greptime.v1.Ddl.DdlRequest.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((io.greptime.v1.Ddl.DdlRequest) request_);
-                request_ = subBuilder.buildPartial();
-              }
-              requestCase_ = 4;
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Database.internal_static_greptime_v1_GreptimeRequest_descriptor;
@@ -3692,6 +143,7 @@ public final class Database {
       INSERT(2),
       QUERY(3),
       DDL(4),
+      DELETE(5),
       REQUEST_NOT_SET(0);
       private final int value;
       private RequestCase(int value) {
@@ -3712,6 +164,7 @@ public final class Database {
           case 2: return INSERT;
           case 3: return QUERY;
           case 4: return DDL;
+          case 5: return DELETE;
           case 0: return REQUEST_NOT_SET;
           default: return null;
         }
@@ -3728,7 +181,7 @@ public final class Database {
     }
 
     public static final int HEADER_FIELD_NUMBER = 1;
-    private io.greptime.v1.Database.RequestHeader header_;
+    private io.greptime.v1.Common.RequestHeader header_;
     /**
      * .greptime.v1.RequestHeader header = 1;
      * @return Whether the header field is set.
@@ -3742,15 +195,15 @@ public final class Database {
      * @return The header.
      */
     @java.lang.Override
-    public io.greptime.v1.Database.RequestHeader getHeader() {
-      return header_ == null ? io.greptime.v1.Database.RequestHeader.getDefaultInstance() : header_;
+    public io.greptime.v1.Common.RequestHeader getHeader() {
+      return header_ == null ? io.greptime.v1.Common.RequestHeader.getDefaultInstance() : header_;
     }
     /**
      * .greptime.v1.RequestHeader header = 1;
      */
     @java.lang.Override
-    public io.greptime.v1.Database.RequestHeaderOrBuilder getHeaderOrBuilder() {
-      return getHeader();
+    public io.greptime.v1.Common.RequestHeaderOrBuilder getHeaderOrBuilder() {
+      return header_ == null ? io.greptime.v1.Common.RequestHeader.getDefaultInstance() : header_;
     }
 
     public static final int INSERT_FIELD_NUMBER = 2;
@@ -3846,6 +299,37 @@ public final class Database {
       return io.greptime.v1.Ddl.DdlRequest.getDefaultInstance();
     }
 
+    public static final int DELETE_FIELD_NUMBER = 5;
+    /**
+     * .greptime.v1.DeleteRequest delete = 5;
+     * @return Whether the delete field is set.
+     */
+    @java.lang.Override
+    public boolean hasDelete() {
+      return requestCase_ == 5;
+    }
+    /**
+     * .greptime.v1.DeleteRequest delete = 5;
+     * @return The delete.
+     */
+    @java.lang.Override
+    public io.greptime.v1.Database.DeleteRequest getDelete() {
+      if (requestCase_ == 5) {
+         return (io.greptime.v1.Database.DeleteRequest) request_;
+      }
+      return io.greptime.v1.Database.DeleteRequest.getDefaultInstance();
+    }
+    /**
+     * .greptime.v1.DeleteRequest delete = 5;
+     */
+    @java.lang.Override
+    public io.greptime.v1.Database.DeleteRequestOrBuilder getDeleteOrBuilder() {
+      if (requestCase_ == 5) {
+         return (io.greptime.v1.Database.DeleteRequest) request_;
+      }
+      return io.greptime.v1.Database.DeleteRequest.getDefaultInstance();
+    }
+
     private byte memoizedIsInitialized = -1;
     @java.lang.Override
     public final boolean isInitialized() {
@@ -3872,7 +356,10 @@ public final class Database {
       if (requestCase_ == 4) {
         output.writeMessage(4, (io.greptime.v1.Ddl.DdlRequest) request_);
       }
-      unknownFields.writeTo(output);
+      if (requestCase_ == 5) {
+        output.writeMessage(5, (io.greptime.v1.Database.DeleteRequest) request_);
+      }
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -3897,7 +384,11 @@ public final class Database {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(4, (io.greptime.v1.Ddl.DdlRequest) request_);
       }
-      size += unknownFields.getSerializedSize();
+      if (requestCase_ == 5) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(5, (io.greptime.v1.Database.DeleteRequest) request_);
+      }
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -3931,10 +422,14 @@ public final class Database {
           if (!getDdl()
               .equals(other.getDdl())) return false;
           break;
+        case 5:
+          if (!getDelete()
+              .equals(other.getDelete())) return false;
+          break;
         case 0:
         default:
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -3962,10 +457,14 @@ public final class Database {
           hash = (37 * hash) + DDL_FIELD_NUMBER;
           hash = (53 * hash) + getDdl().hashCode();
           break;
+        case 5:
+          hash = (37 * hash) + DELETE_FIELD_NUMBER;
+          hash = (53 * hash) + getDelete().hashCode();
+          break;
         case 0:
         default:
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -4082,28 +581,35 @@ public final class Database {
 
       // Construct using io.greptime.v1.Database.GreptimeRequest.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
-        if (headerBuilder_ == null) {
-          header_ = null;
-        } else {
-          header_ = null;
+        bitField0_ = 0;
+        header_ = null;
+        if (headerBuilder_ != null) {
+          headerBuilder_.dispose();
           headerBuilder_ = null;
         }
+        if (insertBuilder_ != null) {
+          insertBuilder_.clear();
+        }
+        if (queryBuilder_ != null) {
+          queryBuilder_.clear();
+        }
+        if (ddlBuilder_ != null) {
+          ddlBuilder_.clear();
+        }
+        if (deleteBuilder_ != null) {
+          deleteBuilder_.clear();
+        }
         requestCase_ = 0;
         request_ = null;
         return this;
@@ -4132,37 +638,42 @@ public final class Database {
       @java.lang.Override
       public io.greptime.v1.Database.GreptimeRequest buildPartial() {
         io.greptime.v1.Database.GreptimeRequest result = new io.greptime.v1.Database.GreptimeRequest(this);
-        if (headerBuilder_ == null) {
-          result.header_ = header_;
-        } else {
-          result.header_ = headerBuilder_.build();
-        }
-        if (requestCase_ == 2) {
-          if (insertBuilder_ == null) {
-            result.request_ = request_;
-          } else {
-            result.request_ = insertBuilder_.build();
-          }
-        }
-        if (requestCase_ == 3) {
-          if (queryBuilder_ == null) {
-            result.request_ = request_;
-          } else {
-            result.request_ = queryBuilder_.build();
-          }
-        }
-        if (requestCase_ == 4) {
-          if (ddlBuilder_ == null) {
-            result.request_ = request_;
-          } else {
-            result.request_ = ddlBuilder_.build();
-          }
-        }
-        result.requestCase_ = requestCase_;
+        if (bitField0_ != 0) { buildPartial0(result); }
+        buildPartialOneofs(result);
         onBuilt();
         return result;
       }
 
+      private void buildPartial0(io.greptime.v1.Database.GreptimeRequest result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.header_ = headerBuilder_ == null
+              ? header_
+              : headerBuilder_.build();
+        }
+      }
+
+      private void buildPartialOneofs(io.greptime.v1.Database.GreptimeRequest result) {
+        result.requestCase_ = requestCase_;
+        result.request_ = this.request_;
+        if (requestCase_ == 2 &&
+            insertBuilder_ != null) {
+          result.request_ = insertBuilder_.build();
+        }
+        if (requestCase_ == 3 &&
+            queryBuilder_ != null) {
+          result.request_ = queryBuilder_.build();
+        }
+        if (requestCase_ == 4 &&
+            ddlBuilder_ != null) {
+          result.request_ = ddlBuilder_.build();
+        }
+        if (requestCase_ == 5 &&
+            deleteBuilder_ != null) {
+          result.request_ = deleteBuilder_.build();
+        }
+      }
+
       @java.lang.Override
       public Builder clone() {
         return super.clone();
@@ -4223,11 +734,15 @@ public final class Database {
             mergeDdl(other.getDdl());
             break;
           }
+          case DELETE: {
+            mergeDelete(other.getDelete());
+            break;
+          }
           case REQUEST_NOT_SET: {
             break;
           }
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -4242,17 +757,65 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Database.GreptimeRequest parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                input.readMessage(
+                    getHeaderFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+              case 18: {
+                input.readMessage(
+                    getInsertFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                requestCase_ = 2;
+                break;
+              } // case 18
+              case 26: {
+                input.readMessage(
+                    getQueryFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                requestCase_ = 3;
+                break;
+              } // case 26
+              case 34: {
+                input.readMessage(
+                    getDdlFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                requestCase_ = 4;
+                break;
+              } // case 34
+              case 42: {
+                input.readMessage(
+                    getDeleteFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                requestCase_ = 5;
+                break;
+              } // case 42
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Database.GreptimeRequest) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
       private int requestCase_ = 0;
@@ -4270,24 +833,25 @@ public final class Database {
         return this;
       }
 
+      private int bitField0_;
 
-      private io.greptime.v1.Database.RequestHeader header_;
+      private io.greptime.v1.Common.RequestHeader header_;
       private com.google.protobuf.SingleFieldBuilderV3<
-          io.greptime.v1.Database.RequestHeader, io.greptime.v1.Database.RequestHeader.Builder, io.greptime.v1.Database.RequestHeaderOrBuilder> headerBuilder_;
+          io.greptime.v1.Common.RequestHeader, io.greptime.v1.Common.RequestHeader.Builder, io.greptime.v1.Common.RequestHeaderOrBuilder> headerBuilder_;
       /**
        * .greptime.v1.RequestHeader header = 1;
        * @return Whether the header field is set.
        */
       public boolean hasHeader() {
-        return headerBuilder_ != null || header_ != null;
+        return ((bitField0_ & 0x00000001) != 0);
       }
       /**
        * .greptime.v1.RequestHeader header = 1;
        * @return The header.
        */
-      public io.greptime.v1.Database.RequestHeader getHeader() {
+      public io.greptime.v1.Common.RequestHeader getHeader() {
         if (headerBuilder_ == null) {
-          return header_ == null ? io.greptime.v1.Database.RequestHeader.getDefaultInstance() : header_;
+          return header_ == null ? io.greptime.v1.Common.RequestHeader.getDefaultInstance() : header_;
         } else {
           return headerBuilder_.getMessage();
         }
@@ -4295,93 +859,93 @@ public final class Database {
       /**
        * .greptime.v1.RequestHeader header = 1;
        */
-      public Builder setHeader(io.greptime.v1.Database.RequestHeader value) {
+      public Builder setHeader(io.greptime.v1.Common.RequestHeader value) {
         if (headerBuilder_ == null) {
           if (value == null) {
             throw new NullPointerException();
           }
           header_ = value;
-          onChanged();
         } else {
           headerBuilder_.setMessage(value);
         }
-
+        bitField0_ |= 0x00000001;
+        onChanged();
         return this;
       }
       /**
        * .greptime.v1.RequestHeader header = 1;
        */
       public Builder setHeader(
-          io.greptime.v1.Database.RequestHeader.Builder builderForValue) {
+          io.greptime.v1.Common.RequestHeader.Builder builderForValue) {
         if (headerBuilder_ == null) {
           header_ = builderForValue.build();
-          onChanged();
         } else {
           headerBuilder_.setMessage(builderForValue.build());
         }
-
+        bitField0_ |= 0x00000001;
+        onChanged();
         return this;
       }
       /**
        * .greptime.v1.RequestHeader header = 1;
        */
-      public Builder mergeHeader(io.greptime.v1.Database.RequestHeader value) {
+      public Builder mergeHeader(io.greptime.v1.Common.RequestHeader value) {
         if (headerBuilder_ == null) {
-          if (header_ != null) {
-            header_ =
-              io.greptime.v1.Database.RequestHeader.newBuilder(header_).mergeFrom(value).buildPartial();
+          if (((bitField0_ & 0x00000001) != 0) &&
+            header_ != null &&
+            header_ != io.greptime.v1.Common.RequestHeader.getDefaultInstance()) {
+            getHeaderBuilder().mergeFrom(value);
           } else {
             header_ = value;
           }
-          onChanged();
         } else {
           headerBuilder_.mergeFrom(value);
         }
-
+        bitField0_ |= 0x00000001;
+        onChanged();
         return this;
       }
       /**
        * .greptime.v1.RequestHeader header = 1;
        */
       public Builder clearHeader() {
-        if (headerBuilder_ == null) {
-          header_ = null;
-          onChanged();
-        } else {
-          header_ = null;
+        bitField0_ = (bitField0_ & ~0x00000001);
+        header_ = null;
+        if (headerBuilder_ != null) {
+          headerBuilder_.dispose();
           headerBuilder_ = null;
         }
-
+        onChanged();
         return this;
       }
       /**
        * .greptime.v1.RequestHeader header = 1;
        */
-      public io.greptime.v1.Database.RequestHeader.Builder getHeaderBuilder() {
-        
+      public io.greptime.v1.Common.RequestHeader.Builder getHeaderBuilder() {
+        bitField0_ |= 0x00000001;
         onChanged();
         return getHeaderFieldBuilder().getBuilder();
       }
       /**
        * .greptime.v1.RequestHeader header = 1;
        */
-      public io.greptime.v1.Database.RequestHeaderOrBuilder getHeaderOrBuilder() {
+      public io.greptime.v1.Common.RequestHeaderOrBuilder getHeaderOrBuilder() {
         if (headerBuilder_ != null) {
           return headerBuilder_.getMessageOrBuilder();
         } else {
           return header_ == null ?
-              io.greptime.v1.Database.RequestHeader.getDefaultInstance() : header_;
+              io.greptime.v1.Common.RequestHeader.getDefaultInstance() : header_;
         }
       }
       /**
        * .greptime.v1.RequestHeader header = 1;
        */
       private com.google.protobuf.SingleFieldBuilderV3<
-          io.greptime.v1.Database.RequestHeader, io.greptime.v1.Database.RequestHeader.Builder, io.greptime.v1.Database.RequestHeaderOrBuilder> 
+          io.greptime.v1.Common.RequestHeader, io.greptime.v1.Common.RequestHeader.Builder, io.greptime.v1.Common.RequestHeaderOrBuilder> 
           getHeaderFieldBuilder() {
         if (headerBuilder_ == null) {
           headerBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
-              io.greptime.v1.Database.RequestHeader, io.greptime.v1.Database.RequestHeader.Builder, io.greptime.v1.Database.RequestHeaderOrBuilder>(
+              io.greptime.v1.Common.RequestHeader, io.greptime.v1.Common.RequestHeader.Builder, io.greptime.v1.Common.RequestHeaderOrBuilder>(
                   getHeader(),
                   getParentForChildren(),
                   isClean());
@@ -4464,8 +1028,9 @@ public final class Database {
         } else {
           if (requestCase_ == 2) {
             insertBuilder_.mergeFrom(value);
+          } else {
+            insertBuilder_.setMessage(value);
           }
-          insertBuilder_.setMessage(value);
         }
         requestCase_ = 2;
         return this;
@@ -4527,7 +1092,7 @@ public final class Database {
           request_ = null;
         }
         requestCase_ = 2;
-        onChanged();;
+        onChanged();
         return insertBuilder_;
       }
 
@@ -4605,8 +1170,9 @@ public final class Database {
         } else {
           if (requestCase_ == 3) {
             queryBuilder_.mergeFrom(value);
+          } else {
+            queryBuilder_.setMessage(value);
           }
-          queryBuilder_.setMessage(value);
         }
         requestCase_ = 3;
         return this;
@@ -4668,7 +1234,7 @@ public final class Database {
           request_ = null;
         }
         requestCase_ = 3;
-        onChanged();;
+        onChanged();
         return queryBuilder_;
       }
 
@@ -4746,8 +1312,9 @@ public final class Database {
         } else {
           if (requestCase_ == 4) {
             ddlBuilder_.mergeFrom(value);
+          } else {
+            ddlBuilder_.setMessage(value);
           }
-          ddlBuilder_.setMessage(value);
         }
         requestCase_ = 4;
         return this;
@@ -4809,9 +1376,151 @@ public final class Database {
           request_ = null;
         }
         requestCase_ = 4;
-        onChanged();;
+        onChanged();
         return ddlBuilder_;
       }
+
+      private com.google.protobuf.SingleFieldBuilderV3<
+          io.greptime.v1.Database.DeleteRequest, io.greptime.v1.Database.DeleteRequest.Builder, io.greptime.v1.Database.DeleteRequestOrBuilder> deleteBuilder_;
+      /**
+       * .greptime.v1.DeleteRequest delete = 5;
+       * @return Whether the delete field is set.
+       */
+      @java.lang.Override
+      public boolean hasDelete() {
+        return requestCase_ == 5;
+      }
+      /**
+       * .greptime.v1.DeleteRequest delete = 5;
+       * @return The delete.
+       */
+      @java.lang.Override
+      public io.greptime.v1.Database.DeleteRequest getDelete() {
+        if (deleteBuilder_ == null) {
+          if (requestCase_ == 5) {
+            return (io.greptime.v1.Database.DeleteRequest) request_;
+          }
+          return io.greptime.v1.Database.DeleteRequest.getDefaultInstance();
+        } else {
+          if (requestCase_ == 5) {
+            return deleteBuilder_.getMessage();
+          }
+          return io.greptime.v1.Database.DeleteRequest.getDefaultInstance();
+        }
+      }
+      /**
+       * .greptime.v1.DeleteRequest delete = 5;
+       */
+      public Builder setDelete(io.greptime.v1.Database.DeleteRequest value) {
+        if (deleteBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          request_ = value;
+          onChanged();
+        } else {
+          deleteBuilder_.setMessage(value);
+        }
+        requestCase_ = 5;
+        return this;
+      }
+      /**
+       * .greptime.v1.DeleteRequest delete = 5;
+       */
+      public Builder setDelete(
+          io.greptime.v1.Database.DeleteRequest.Builder builderForValue) {
+        if (deleteBuilder_ == null) {
+          request_ = builderForValue.build();
+          onChanged();
+        } else {
+          deleteBuilder_.setMessage(builderForValue.build());
+        }
+        requestCase_ = 5;
+        return this;
+      }
+      /**
+       * .greptime.v1.DeleteRequest delete = 5;
+       */
+      public Builder mergeDelete(io.greptime.v1.Database.DeleteRequest value) {
+        if (deleteBuilder_ == null) {
+          if (requestCase_ == 5 &&
+              request_ != io.greptime.v1.Database.DeleteRequest.getDefaultInstance()) {
+            request_ = io.greptime.v1.Database.DeleteRequest.newBuilder((io.greptime.v1.Database.DeleteRequest) request_)
+                .mergeFrom(value).buildPartial();
+          } else {
+            request_ = value;
+          }
+          onChanged();
+        } else {
+          if (requestCase_ == 5) {
+            deleteBuilder_.mergeFrom(value);
+          } else {
+            deleteBuilder_.setMessage(value);
+          }
+        }
+        requestCase_ = 5;
+        return this;
+      }
+      /**
+       * .greptime.v1.DeleteRequest delete = 5;
+       */
+      public Builder clearDelete() {
+        if (deleteBuilder_ == null) {
+          if (requestCase_ == 5) {
+            requestCase_ = 0;
+            request_ = null;
+            onChanged();
+          }
+        } else {
+          if (requestCase_ == 5) {
+            requestCase_ = 0;
+            request_ = null;
+          }
+          deleteBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       * .greptime.v1.DeleteRequest delete = 5;
+       */
+      public io.greptime.v1.Database.DeleteRequest.Builder getDeleteBuilder() {
+        return getDeleteFieldBuilder().getBuilder();
+      }
+      /**
+       * .greptime.v1.DeleteRequest delete = 5;
+       */
+      @java.lang.Override
+      public io.greptime.v1.Database.DeleteRequestOrBuilder getDeleteOrBuilder() {
+        if ((requestCase_ == 5) && (deleteBuilder_ != null)) {
+          return deleteBuilder_.getMessageOrBuilder();
+        } else {
+          if (requestCase_ == 5) {
+            return (io.greptime.v1.Database.DeleteRequest) request_;
+          }
+          return io.greptime.v1.Database.DeleteRequest.getDefaultInstance();
+        }
+      }
+      /**
+       * .greptime.v1.DeleteRequest delete = 5;
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+          io.greptime.v1.Database.DeleteRequest, io.greptime.v1.Database.DeleteRequest.Builder, io.greptime.v1.Database.DeleteRequestOrBuilder> 
+          getDeleteFieldBuilder() {
+        if (deleteBuilder_ == null) {
+          if (!(requestCase_ == 5)) {
+            request_ = io.greptime.v1.Database.DeleteRequest.getDefaultInstance();
+          }
+          deleteBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+              io.greptime.v1.Database.DeleteRequest, io.greptime.v1.Database.DeleteRequest.Builder, io.greptime.v1.Database.DeleteRequestOrBuilder>(
+                  (io.greptime.v1.Database.DeleteRequest) request_,
+                  getParentForChildren(),
+                  isClean());
+          request_ = null;
+        }
+        requestCase_ = 5;
+        onChanged();
+        return deleteBuilder_;
+      }
       @java.lang.Override
       public final Builder setUnknownFields(
           final com.google.protobuf.UnknownFieldSet unknownFields) {
@@ -4845,7 +1554,18 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new GreptimeRequest(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
@@ -4865,424 +1585,6 @@ public final class Database {
 
   }
 
-  public interface ResponseHeaderOrBuilder extends
-      // @@protoc_insertion_point(interface_extends:greptime.v1.ResponseHeader)
-      com.google.protobuf.MessageOrBuilder {
-  }
-  /**
-   * Protobuf type {@code greptime.v1.ResponseHeader}
-   */
-  public static final class ResponseHeader extends
-      com.google.protobuf.GeneratedMessageV3 implements
-      // @@protoc_insertion_point(message_implements:greptime.v1.ResponseHeader)
-      ResponseHeaderOrBuilder {
-  private static final long serialVersionUID = 0L;
-    // Use ResponseHeader.newBuilder() to construct.
-    private ResponseHeader(com.google.protobuf.GeneratedMessageV3.Builder builder) {
-      super(builder);
-    }
-    private ResponseHeader() {
-    }
-
-    @java.lang.Override
-    @SuppressWarnings({"unused"})
-    protected java.lang.Object newInstance(
-        UnusedPrivateParameter unused) {
-      return new ResponseHeader();
-    }
-
-    @java.lang.Override
-    public final com.google.protobuf.UnknownFieldSet
-    getUnknownFields() {
-      return this.unknownFields;
-    }
-    private ResponseHeader(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-    public static final com.google.protobuf.Descriptors.Descriptor
-        getDescriptor() {
-      return io.greptime.v1.Database.internal_static_greptime_v1_ResponseHeader_descriptor;
-    }
-
-    @java.lang.Override
-    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-        internalGetFieldAccessorTable() {
-      return io.greptime.v1.Database.internal_static_greptime_v1_ResponseHeader_fieldAccessorTable
-          .ensureFieldAccessorsInitialized(
-              io.greptime.v1.Database.ResponseHeader.class, io.greptime.v1.Database.ResponseHeader.Builder.class);
-    }
-
-    private byte memoizedIsInitialized = -1;
-    @java.lang.Override
-    public final boolean isInitialized() {
-      byte isInitialized = memoizedIsInitialized;
-      if (isInitialized == 1) return true;
-      if (isInitialized == 0) return false;
-
-      memoizedIsInitialized = 1;
-      return true;
-    }
-
-    @java.lang.Override
-    public void writeTo(com.google.protobuf.CodedOutputStream output)
-                        throws java.io.IOException {
-      unknownFields.writeTo(output);
-    }
-
-    @java.lang.Override
-    public int getSerializedSize() {
-      int size = memoizedSize;
-      if (size != -1) return size;
-
-      size = 0;
-      size += unknownFields.getSerializedSize();
-      memoizedSize = size;
-      return size;
-    }
-
-    @java.lang.Override
-    public boolean equals(final java.lang.Object obj) {
-      if (obj == this) {
-       return true;
-      }
-      if (!(obj instanceof io.greptime.v1.Database.ResponseHeader)) {
-        return super.equals(obj);
-      }
-      io.greptime.v1.Database.ResponseHeader other = (io.greptime.v1.Database.ResponseHeader) obj;
-
-      if (!unknownFields.equals(other.unknownFields)) return false;
-      return true;
-    }
-
-    @java.lang.Override
-    public int hashCode() {
-      if (memoizedHashCode != 0) {
-        return memoizedHashCode;
-      }
-      int hash = 41;
-      hash = (19 * hash) + getDescriptor().hashCode();
-      hash = (29 * hash) + unknownFields.hashCode();
-      memoizedHashCode = hash;
-      return hash;
-    }
-
-    public static io.greptime.v1.Database.ResponseHeader parseFrom(
-        java.nio.ByteBuffer data)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      return PARSER.parseFrom(data);
-    }
-    public static io.greptime.v1.Database.ResponseHeader parseFrom(
-        java.nio.ByteBuffer data,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      return PARSER.parseFrom(data, extensionRegistry);
-    }
-    public static io.greptime.v1.Database.ResponseHeader parseFrom(
-        com.google.protobuf.ByteString data)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      return PARSER.parseFrom(data);
-    }
-    public static io.greptime.v1.Database.ResponseHeader parseFrom(
-        com.google.protobuf.ByteString data,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      return PARSER.parseFrom(data, extensionRegistry);
-    }
-    public static io.greptime.v1.Database.ResponseHeader parseFrom(byte[] data)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      return PARSER.parseFrom(data);
-    }
-    public static io.greptime.v1.Database.ResponseHeader parseFrom(
-        byte[] data,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      return PARSER.parseFrom(data, extensionRegistry);
-    }
-    public static io.greptime.v1.Database.ResponseHeader parseFrom(java.io.InputStream input)
-        throws java.io.IOException {
-      return com.google.protobuf.GeneratedMessageV3
-          .parseWithIOException(PARSER, input);
-    }
-    public static io.greptime.v1.Database.ResponseHeader parseFrom(
-        java.io.InputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws java.io.IOException {
-      return com.google.protobuf.GeneratedMessageV3
-          .parseWithIOException(PARSER, input, extensionRegistry);
-    }
-    public static io.greptime.v1.Database.ResponseHeader parseDelimitedFrom(java.io.InputStream input)
-        throws java.io.IOException {
-      return com.google.protobuf.GeneratedMessageV3
-          .parseDelimitedWithIOException(PARSER, input);
-    }
-    public static io.greptime.v1.Database.ResponseHeader parseDelimitedFrom(
-        java.io.InputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws java.io.IOException {
-      return com.google.protobuf.GeneratedMessageV3
-          .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
-    }
-    public static io.greptime.v1.Database.ResponseHeader parseFrom(
-        com.google.protobuf.CodedInputStream input)
-        throws java.io.IOException {
-      return com.google.protobuf.GeneratedMessageV3
-          .parseWithIOException(PARSER, input);
-    }
-    public static io.greptime.v1.Database.ResponseHeader parseFrom(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws java.io.IOException {
-      return com.google.protobuf.GeneratedMessageV3
-          .parseWithIOException(PARSER, input, extensionRegistry);
-    }
-
-    @java.lang.Override
-    public Builder newBuilderForType() { return newBuilder(); }
-    public static Builder newBuilder() {
-      return DEFAULT_INSTANCE.toBuilder();
-    }
-    public static Builder newBuilder(io.greptime.v1.Database.ResponseHeader prototype) {
-      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
-    }
-    @java.lang.Override
-    public Builder toBuilder() {
-      return this == DEFAULT_INSTANCE
-          ? new Builder() : new Builder().mergeFrom(this);
-    }
-
-    @java.lang.Override
-    protected Builder newBuilderForType(
-        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
-      Builder builder = new Builder(parent);
-      return builder;
-    }
-    /**
-     * Protobuf type {@code greptime.v1.ResponseHeader}
-     */
-    public static final class Builder extends
-        com.google.protobuf.GeneratedMessageV3.Builder implements
-        // @@protoc_insertion_point(builder_implements:greptime.v1.ResponseHeader)
-        io.greptime.v1.Database.ResponseHeaderOrBuilder {
-      public static final com.google.protobuf.Descriptors.Descriptor
-          getDescriptor() {
-        return io.greptime.v1.Database.internal_static_greptime_v1_ResponseHeader_descriptor;
-      }
-
-      @java.lang.Override
-      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-          internalGetFieldAccessorTable() {
-        return io.greptime.v1.Database.internal_static_greptime_v1_ResponseHeader_fieldAccessorTable
-            .ensureFieldAccessorsInitialized(
-                io.greptime.v1.Database.ResponseHeader.class, io.greptime.v1.Database.ResponseHeader.Builder.class);
-      }
-
-      // Construct using io.greptime.v1.Database.ResponseHeader.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
-
-      private Builder(
-          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
-        super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-        }
-      }
-      @java.lang.Override
-      public Builder clear() {
-        super.clear();
-        return this;
-      }
-
-      @java.lang.Override
-      public com.google.protobuf.Descriptors.Descriptor
-          getDescriptorForType() {
-        return io.greptime.v1.Database.internal_static_greptime_v1_ResponseHeader_descriptor;
-      }
-
-      @java.lang.Override
-      public io.greptime.v1.Database.ResponseHeader getDefaultInstanceForType() {
-        return io.greptime.v1.Database.ResponseHeader.getDefaultInstance();
-      }
-
-      @java.lang.Override
-      public io.greptime.v1.Database.ResponseHeader build() {
-        io.greptime.v1.Database.ResponseHeader result = buildPartial();
-        if (!result.isInitialized()) {
-          throw newUninitializedMessageException(result);
-        }
-        return result;
-      }
-
-      @java.lang.Override
-      public io.greptime.v1.Database.ResponseHeader buildPartial() {
-        io.greptime.v1.Database.ResponseHeader result = new io.greptime.v1.Database.ResponseHeader(this);
-        onBuilt();
-        return result;
-      }
-
-      @java.lang.Override
-      public Builder clone() {
-        return super.clone();
-      }
-      @java.lang.Override
-      public Builder setField(
-          com.google.protobuf.Descriptors.FieldDescriptor field,
-          java.lang.Object value) {
-        return super.setField(field, value);
-      }
-      @java.lang.Override
-      public Builder clearField(
-          com.google.protobuf.Descriptors.FieldDescriptor field) {
-        return super.clearField(field);
-      }
-      @java.lang.Override
-      public Builder clearOneof(
-          com.google.protobuf.Descriptors.OneofDescriptor oneof) {
-        return super.clearOneof(oneof);
-      }
-      @java.lang.Override
-      public Builder setRepeatedField(
-          com.google.protobuf.Descriptors.FieldDescriptor field,
-          int index, java.lang.Object value) {
-        return super.setRepeatedField(field, index, value);
-      }
-      @java.lang.Override
-      public Builder addRepeatedField(
-          com.google.protobuf.Descriptors.FieldDescriptor field,
-          java.lang.Object value) {
-        return super.addRepeatedField(field, value);
-      }
-      @java.lang.Override
-      public Builder mergeFrom(com.google.protobuf.Message other) {
-        if (other instanceof io.greptime.v1.Database.ResponseHeader) {
-          return mergeFrom((io.greptime.v1.Database.ResponseHeader)other);
-        } else {
-          super.mergeFrom(other);
-          return this;
-        }
-      }
-
-      public Builder mergeFrom(io.greptime.v1.Database.ResponseHeader other) {
-        if (other == io.greptime.v1.Database.ResponseHeader.getDefaultInstance()) return this;
-        this.mergeUnknownFields(other.unknownFields);
-        onChanged();
-        return this;
-      }
-
-      @java.lang.Override
-      public final boolean isInitialized() {
-        return true;
-      }
-
-      @java.lang.Override
-      public Builder mergeFrom(
-          com.google.protobuf.CodedInputStream input,
-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws java.io.IOException {
-        io.greptime.v1.Database.ResponseHeader parsedMessage = null;
-        try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
-        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Database.ResponseHeader) e.getUnfinishedMessage();
-          throw e.unwrapIOException();
-        } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
-        return this;
-      }
-      @java.lang.Override
-      public final Builder setUnknownFields(
-          final com.google.protobuf.UnknownFieldSet unknownFields) {
-        return super.setUnknownFields(unknownFields);
-      }
-
-      @java.lang.Override
-      public final Builder mergeUnknownFields(
-          final com.google.protobuf.UnknownFieldSet unknownFields) {
-        return super.mergeUnknownFields(unknownFields);
-      }
-
-
-      // @@protoc_insertion_point(builder_scope:greptime.v1.ResponseHeader)
-    }
-
-    // @@protoc_insertion_point(class_scope:greptime.v1.ResponseHeader)
-    private static final io.greptime.v1.Database.ResponseHeader DEFAULT_INSTANCE;
-    static {
-      DEFAULT_INSTANCE = new io.greptime.v1.Database.ResponseHeader();
-    }
-
-    public static io.greptime.v1.Database.ResponseHeader getDefaultInstance() {
-      return DEFAULT_INSTANCE;
-    }
-
-    private static final com.google.protobuf.Parser
-        PARSER = new com.google.protobuf.AbstractParser() {
-      @java.lang.Override
-      public ResponseHeader parsePartialFrom(
-          com.google.protobuf.CodedInputStream input,
-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws com.google.protobuf.InvalidProtocolBufferException {
-        return new ResponseHeader(input, extensionRegistry);
-      }
-    };
-
-    public static com.google.protobuf.Parser parser() {
-      return PARSER;
-    }
-
-    @java.lang.Override
-    public com.google.protobuf.Parser getParserForType() {
-      return PARSER;
-    }
-
-    @java.lang.Override
-    public io.greptime.v1.Database.ResponseHeader getDefaultInstanceForType() {
-      return DEFAULT_INSTANCE;
-    }
-
-  }
-
   public interface GreptimeResponseOrBuilder extends
       // @@protoc_insertion_point(interface_extends:greptime.v1.GreptimeResponse)
       com.google.protobuf.MessageOrBuilder {
@@ -5296,11 +1598,11 @@ public final class Database {
      * .greptime.v1.ResponseHeader header = 1;
      * @return The header.
      */
-    io.greptime.v1.Database.ResponseHeader getHeader();
+    io.greptime.v1.Common.ResponseHeader getHeader();
     /**
      * .greptime.v1.ResponseHeader header = 1;
      */
-    io.greptime.v1.Database.ResponseHeaderOrBuilder getHeaderOrBuilder();
+    io.greptime.v1.Common.ResponseHeaderOrBuilder getHeaderOrBuilder();
 
     /**
      * .greptime.v1.AffectedRows affected_rows = 2;
@@ -5311,11 +1613,11 @@ public final class Database {
      * .greptime.v1.AffectedRows affected_rows = 2;
      * @return The affectedRows.
      */
-    io.greptime.v1.Database.AffectedRows getAffectedRows();
+    io.greptime.v1.Common.AffectedRows getAffectedRows();
     /**
      * .greptime.v1.AffectedRows affected_rows = 2;
      */
-    io.greptime.v1.Database.AffectedRowsOrBuilder getAffectedRowsOrBuilder();
+    io.greptime.v1.Common.AffectedRowsOrBuilder getAffectedRowsOrBuilder();
 
     public io.greptime.v1.Database.GreptimeResponse.ResponseCase getResponseCase();
   }
@@ -5346,70 +1648,6 @@ public final class Database {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private GreptimeResponse(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              io.greptime.v1.Database.ResponseHeader.Builder subBuilder = null;
-              if (header_ != null) {
-                subBuilder = header_.toBuilder();
-              }
-              header_ = input.readMessage(io.greptime.v1.Database.ResponseHeader.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(header_);
-                header_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-            case 18: {
-              io.greptime.v1.Database.AffectedRows.Builder subBuilder = null;
-              if (responseCase_ == 2) {
-                subBuilder = ((io.greptime.v1.Database.AffectedRows) response_).toBuilder();
-              }
-              response_ =
-                  input.readMessage(io.greptime.v1.Database.AffectedRows.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((io.greptime.v1.Database.AffectedRows) response_);
-                response_ = subBuilder.buildPartial();
-              }
-              responseCase_ = 2;
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Database.internal_static_greptime_v1_GreptimeResponse_descriptor;
@@ -5463,7 +1701,7 @@ public final class Database {
     }
 
     public static final int HEADER_FIELD_NUMBER = 1;
-    private io.greptime.v1.Database.ResponseHeader header_;
+    private io.greptime.v1.Common.ResponseHeader header_;
     /**
      * .greptime.v1.ResponseHeader header = 1;
      * @return Whether the header field is set.
@@ -5477,15 +1715,15 @@ public final class Database {
      * @return The header.
      */
     @java.lang.Override
-    public io.greptime.v1.Database.ResponseHeader getHeader() {
-      return header_ == null ? io.greptime.v1.Database.ResponseHeader.getDefaultInstance() : header_;
+    public io.greptime.v1.Common.ResponseHeader getHeader() {
+      return header_ == null ? io.greptime.v1.Common.ResponseHeader.getDefaultInstance() : header_;
     }
     /**
      * .greptime.v1.ResponseHeader header = 1;
      */
     @java.lang.Override
-    public io.greptime.v1.Database.ResponseHeaderOrBuilder getHeaderOrBuilder() {
-      return getHeader();
+    public io.greptime.v1.Common.ResponseHeaderOrBuilder getHeaderOrBuilder() {
+      return header_ == null ? io.greptime.v1.Common.ResponseHeader.getDefaultInstance() : header_;
     }
 
     public static final int AFFECTED_ROWS_FIELD_NUMBER = 2;
@@ -5502,21 +1740,21 @@ public final class Database {
      * @return The affectedRows.
      */
     @java.lang.Override
-    public io.greptime.v1.Database.AffectedRows getAffectedRows() {
+    public io.greptime.v1.Common.AffectedRows getAffectedRows() {
       if (responseCase_ == 2) {
-         return (io.greptime.v1.Database.AffectedRows) response_;
+         return (io.greptime.v1.Common.AffectedRows) response_;
       }
-      return io.greptime.v1.Database.AffectedRows.getDefaultInstance();
+      return io.greptime.v1.Common.AffectedRows.getDefaultInstance();
     }
     /**
      * .greptime.v1.AffectedRows affected_rows = 2;
      */
     @java.lang.Override
-    public io.greptime.v1.Database.AffectedRowsOrBuilder getAffectedRowsOrBuilder() {
+    public io.greptime.v1.Common.AffectedRowsOrBuilder getAffectedRowsOrBuilder() {
       if (responseCase_ == 2) {
-         return (io.greptime.v1.Database.AffectedRows) response_;
+         return (io.greptime.v1.Common.AffectedRows) response_;
       }
-      return io.greptime.v1.Database.AffectedRows.getDefaultInstance();
+      return io.greptime.v1.Common.AffectedRows.getDefaultInstance();
     }
 
     private byte memoizedIsInitialized = -1;
@@ -5537,9 +1775,9 @@ public final class Database {
         output.writeMessage(1, getHeader());
       }
       if (responseCase_ == 2) {
-        output.writeMessage(2, (io.greptime.v1.Database.AffectedRows) response_);
+        output.writeMessage(2, (io.greptime.v1.Common.AffectedRows) response_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -5554,9 +1792,9 @@ public final class Database {
       }
       if (responseCase_ == 2) {
         size += com.google.protobuf.CodedOutputStream
-          .computeMessageSize(2, (io.greptime.v1.Database.AffectedRows) response_);
+          .computeMessageSize(2, (io.greptime.v1.Common.AffectedRows) response_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -5585,7 +1823,7 @@ public final class Database {
         case 0:
         default:
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -5608,7 +1846,7 @@ public final class Database {
         case 0:
         default:
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -5725,28 +1963,26 @@ public final class Database {
 
       // Construct using io.greptime.v1.Database.GreptimeResponse.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
-        if (headerBuilder_ == null) {
-          header_ = null;
-        } else {
-          header_ = null;
+        bitField0_ = 0;
+        header_ = null;
+        if (headerBuilder_ != null) {
+          headerBuilder_.dispose();
           headerBuilder_ = null;
         }
+        if (affectedRowsBuilder_ != null) {
+          affectedRowsBuilder_.clear();
+        }
         responseCase_ = 0;
         response_ = null;
         return this;
@@ -5775,23 +2011,30 @@ public final class Database {
       @java.lang.Override
       public io.greptime.v1.Database.GreptimeResponse buildPartial() {
         io.greptime.v1.Database.GreptimeResponse result = new io.greptime.v1.Database.GreptimeResponse(this);
-        if (headerBuilder_ == null) {
-          result.header_ = header_;
-        } else {
-          result.header_ = headerBuilder_.build();
-        }
-        if (responseCase_ == 2) {
-          if (affectedRowsBuilder_ == null) {
-            result.response_ = response_;
-          } else {
-            result.response_ = affectedRowsBuilder_.build();
-          }
-        }
-        result.responseCase_ = responseCase_;
+        if (bitField0_ != 0) { buildPartial0(result); }
+        buildPartialOneofs(result);
         onBuilt();
         return result;
       }
 
+      private void buildPartial0(io.greptime.v1.Database.GreptimeResponse result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.header_ = headerBuilder_ == null
+              ? header_
+              : headerBuilder_.build();
+        }
+      }
+
+      private void buildPartialOneofs(io.greptime.v1.Database.GreptimeResponse result) {
+        result.responseCase_ = responseCase_;
+        result.response_ = this.response_;
+        if (responseCase_ == 2 &&
+            affectedRowsBuilder_ != null) {
+          result.response_ = affectedRowsBuilder_.build();
+        }
+      }
+
       @java.lang.Override
       public Builder clone() {
         return super.clone();
@@ -5848,7 +2091,7 @@ public final class Database {
             break;
           }
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -5863,17 +2106,44 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Database.GreptimeResponse parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                input.readMessage(
+                    getHeaderFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+              case 18: {
+                input.readMessage(
+                    getAffectedRowsFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                responseCase_ = 2;
+                break;
+              } // case 18
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Database.GreptimeResponse) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
       private int responseCase_ = 0;
@@ -5891,24 +2161,25 @@ public final class Database {
         return this;
       }
 
+      private int bitField0_;
 
-      private io.greptime.v1.Database.ResponseHeader header_;
+      private io.greptime.v1.Common.ResponseHeader header_;
       private com.google.protobuf.SingleFieldBuilderV3<
-          io.greptime.v1.Database.ResponseHeader, io.greptime.v1.Database.ResponseHeader.Builder, io.greptime.v1.Database.ResponseHeaderOrBuilder> headerBuilder_;
+          io.greptime.v1.Common.ResponseHeader, io.greptime.v1.Common.ResponseHeader.Builder, io.greptime.v1.Common.ResponseHeaderOrBuilder> headerBuilder_;
       /**
        * .greptime.v1.ResponseHeader header = 1;
        * @return Whether the header field is set.
        */
       public boolean hasHeader() {
-        return headerBuilder_ != null || header_ != null;
+        return ((bitField0_ & 0x00000001) != 0);
       }
       /**
        * .greptime.v1.ResponseHeader header = 1;
        * @return The header.
        */
-      public io.greptime.v1.Database.ResponseHeader getHeader() {
+      public io.greptime.v1.Common.ResponseHeader getHeader() {
         if (headerBuilder_ == null) {
-          return header_ == null ? io.greptime.v1.Database.ResponseHeader.getDefaultInstance() : header_;
+          return header_ == null ? io.greptime.v1.Common.ResponseHeader.getDefaultInstance() : header_;
         } else {
           return headerBuilder_.getMessage();
         }
@@ -5916,93 +2187,93 @@ public final class Database {
       /**
        * .greptime.v1.ResponseHeader header = 1;
        */
-      public Builder setHeader(io.greptime.v1.Database.ResponseHeader value) {
+      public Builder setHeader(io.greptime.v1.Common.ResponseHeader value) {
         if (headerBuilder_ == null) {
           if (value == null) {
             throw new NullPointerException();
           }
           header_ = value;
-          onChanged();
         } else {
           headerBuilder_.setMessage(value);
         }
-
+        bitField0_ |= 0x00000001;
+        onChanged();
         return this;
       }
       /**
        * .greptime.v1.ResponseHeader header = 1;
        */
       public Builder setHeader(
-          io.greptime.v1.Database.ResponseHeader.Builder builderForValue) {
+          io.greptime.v1.Common.ResponseHeader.Builder builderForValue) {
         if (headerBuilder_ == null) {
           header_ = builderForValue.build();
-          onChanged();
         } else {
           headerBuilder_.setMessage(builderForValue.build());
         }
-
+        bitField0_ |= 0x00000001;
+        onChanged();
         return this;
       }
       /**
        * .greptime.v1.ResponseHeader header = 1;
        */
-      public Builder mergeHeader(io.greptime.v1.Database.ResponseHeader value) {
+      public Builder mergeHeader(io.greptime.v1.Common.ResponseHeader value) {
         if (headerBuilder_ == null) {
-          if (header_ != null) {
-            header_ =
-              io.greptime.v1.Database.ResponseHeader.newBuilder(header_).mergeFrom(value).buildPartial();
+          if (((bitField0_ & 0x00000001) != 0) &&
+            header_ != null &&
+            header_ != io.greptime.v1.Common.ResponseHeader.getDefaultInstance()) {
+            getHeaderBuilder().mergeFrom(value);
           } else {
             header_ = value;
           }
-          onChanged();
         } else {
           headerBuilder_.mergeFrom(value);
         }
-
+        bitField0_ |= 0x00000001;
+        onChanged();
         return this;
       }
       /**
        * .greptime.v1.ResponseHeader header = 1;
        */
       public Builder clearHeader() {
-        if (headerBuilder_ == null) {
-          header_ = null;
-          onChanged();
-        } else {
-          header_ = null;
+        bitField0_ = (bitField0_ & ~0x00000001);
+        header_ = null;
+        if (headerBuilder_ != null) {
+          headerBuilder_.dispose();
           headerBuilder_ = null;
         }
-
+        onChanged();
         return this;
       }
       /**
        * .greptime.v1.ResponseHeader header = 1;
        */
-      public io.greptime.v1.Database.ResponseHeader.Builder getHeaderBuilder() {
-        
+      public io.greptime.v1.Common.ResponseHeader.Builder getHeaderBuilder() {
+        bitField0_ |= 0x00000001;
         onChanged();
         return getHeaderFieldBuilder().getBuilder();
       }
       /**
        * .greptime.v1.ResponseHeader header = 1;
        */
-      public io.greptime.v1.Database.ResponseHeaderOrBuilder getHeaderOrBuilder() {
+      public io.greptime.v1.Common.ResponseHeaderOrBuilder getHeaderOrBuilder() {
         if (headerBuilder_ != null) {
           return headerBuilder_.getMessageOrBuilder();
         } else {
           return header_ == null ?
-              io.greptime.v1.Database.ResponseHeader.getDefaultInstance() : header_;
+              io.greptime.v1.Common.ResponseHeader.getDefaultInstance() : header_;
         }
       }
       /**
        * .greptime.v1.ResponseHeader header = 1;
        */
       private com.google.protobuf.SingleFieldBuilderV3<
-          io.greptime.v1.Database.ResponseHeader, io.greptime.v1.Database.ResponseHeader.Builder, io.greptime.v1.Database.ResponseHeaderOrBuilder> 
+          io.greptime.v1.Common.ResponseHeader, io.greptime.v1.Common.ResponseHeader.Builder, io.greptime.v1.Common.ResponseHeaderOrBuilder> 
           getHeaderFieldBuilder() {
         if (headerBuilder_ == null) {
           headerBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
-              io.greptime.v1.Database.ResponseHeader, io.greptime.v1.Database.ResponseHeader.Builder, io.greptime.v1.Database.ResponseHeaderOrBuilder>(
+              io.greptime.v1.Common.ResponseHeader, io.greptime.v1.Common.ResponseHeader.Builder, io.greptime.v1.Common.ResponseHeaderOrBuilder>(
                   getHeader(),
                   getParentForChildren(),
                   isClean());
@@ -6012,7 +2283,7 @@ public final class Database {
       }
 
       private com.google.protobuf.SingleFieldBuilderV3<
-          io.greptime.v1.Database.AffectedRows, io.greptime.v1.Database.AffectedRows.Builder, io.greptime.v1.Database.AffectedRowsOrBuilder> affectedRowsBuilder_;
+          io.greptime.v1.Common.AffectedRows, io.greptime.v1.Common.AffectedRows.Builder, io.greptime.v1.Common.AffectedRowsOrBuilder> affectedRowsBuilder_;
       /**
        * .greptime.v1.AffectedRows affected_rows = 2;
        * @return Whether the affectedRows field is set.
@@ -6026,23 +2297,23 @@ public final class Database {
        * @return The affectedRows.
        */
       @java.lang.Override
-      public io.greptime.v1.Database.AffectedRows getAffectedRows() {
+      public io.greptime.v1.Common.AffectedRows getAffectedRows() {
         if (affectedRowsBuilder_ == null) {
           if (responseCase_ == 2) {
-            return (io.greptime.v1.Database.AffectedRows) response_;
+            return (io.greptime.v1.Common.AffectedRows) response_;
           }
-          return io.greptime.v1.Database.AffectedRows.getDefaultInstance();
+          return io.greptime.v1.Common.AffectedRows.getDefaultInstance();
         } else {
           if (responseCase_ == 2) {
             return affectedRowsBuilder_.getMessage();
           }
-          return io.greptime.v1.Database.AffectedRows.getDefaultInstance();
+          return io.greptime.v1.Common.AffectedRows.getDefaultInstance();
         }
       }
       /**
        * .greptime.v1.AffectedRows affected_rows = 2;
        */
-      public Builder setAffectedRows(io.greptime.v1.Database.AffectedRows value) {
+      public Builder setAffectedRows(io.greptime.v1.Common.AffectedRows value) {
         if (affectedRowsBuilder_ == null) {
           if (value == null) {
             throw new NullPointerException();
@@ -6059,7 +2330,7 @@ public final class Database {
        * .greptime.v1.AffectedRows affected_rows = 2;
        */
       public Builder setAffectedRows(
-          io.greptime.v1.Database.AffectedRows.Builder builderForValue) {
+          io.greptime.v1.Common.AffectedRows.Builder builderForValue) {
         if (affectedRowsBuilder_ == null) {
           response_ = builderForValue.build();
           onChanged();
@@ -6072,11 +2343,11 @@ public final class Database {
       /**
        * .greptime.v1.AffectedRows affected_rows = 2;
        */
-      public Builder mergeAffectedRows(io.greptime.v1.Database.AffectedRows value) {
+      public Builder mergeAffectedRows(io.greptime.v1.Common.AffectedRows value) {
         if (affectedRowsBuilder_ == null) {
           if (responseCase_ == 2 &&
-              response_ != io.greptime.v1.Database.AffectedRows.getDefaultInstance()) {
-            response_ = io.greptime.v1.Database.AffectedRows.newBuilder((io.greptime.v1.Database.AffectedRows) response_)
+              response_ != io.greptime.v1.Common.AffectedRows.getDefaultInstance()) {
+            response_ = io.greptime.v1.Common.AffectedRows.newBuilder((io.greptime.v1.Common.AffectedRows) response_)
                 .mergeFrom(value).buildPartial();
           } else {
             response_ = value;
@@ -6085,8 +2356,9 @@ public final class Database {
         } else {
           if (responseCase_ == 2) {
             affectedRowsBuilder_.mergeFrom(value);
+          } else {
+            affectedRowsBuilder_.setMessage(value);
           }
-          affectedRowsBuilder_.setMessage(value);
         }
         responseCase_ = 2;
         return this;
@@ -6113,42 +2385,42 @@ public final class Database {
       /**
        * .greptime.v1.AffectedRows affected_rows = 2;
        */
-      public io.greptime.v1.Database.AffectedRows.Builder getAffectedRowsBuilder() {
+      public io.greptime.v1.Common.AffectedRows.Builder getAffectedRowsBuilder() {
         return getAffectedRowsFieldBuilder().getBuilder();
       }
       /**
        * .greptime.v1.AffectedRows affected_rows = 2;
        */
       @java.lang.Override
-      public io.greptime.v1.Database.AffectedRowsOrBuilder getAffectedRowsOrBuilder() {
+      public io.greptime.v1.Common.AffectedRowsOrBuilder getAffectedRowsOrBuilder() {
         if ((responseCase_ == 2) && (affectedRowsBuilder_ != null)) {
           return affectedRowsBuilder_.getMessageOrBuilder();
         } else {
           if (responseCase_ == 2) {
-            return (io.greptime.v1.Database.AffectedRows) response_;
+            return (io.greptime.v1.Common.AffectedRows) response_;
           }
-          return io.greptime.v1.Database.AffectedRows.getDefaultInstance();
+          return io.greptime.v1.Common.AffectedRows.getDefaultInstance();
         }
       }
       /**
        * .greptime.v1.AffectedRows affected_rows = 2;
        */
       private com.google.protobuf.SingleFieldBuilderV3<
-          io.greptime.v1.Database.AffectedRows, io.greptime.v1.Database.AffectedRows.Builder, io.greptime.v1.Database.AffectedRowsOrBuilder> 
+          io.greptime.v1.Common.AffectedRows, io.greptime.v1.Common.AffectedRows.Builder, io.greptime.v1.Common.AffectedRowsOrBuilder> 
           getAffectedRowsFieldBuilder() {
         if (affectedRowsBuilder_ == null) {
           if (!(responseCase_ == 2)) {
-            response_ = io.greptime.v1.Database.AffectedRows.getDefaultInstance();
+            response_ = io.greptime.v1.Common.AffectedRows.getDefaultInstance();
           }
           affectedRowsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
-              io.greptime.v1.Database.AffectedRows, io.greptime.v1.Database.AffectedRows.Builder, io.greptime.v1.Database.AffectedRowsOrBuilder>(
-                  (io.greptime.v1.Database.AffectedRows) response_,
+              io.greptime.v1.Common.AffectedRows, io.greptime.v1.Common.AffectedRows.Builder, io.greptime.v1.Common.AffectedRowsOrBuilder>(
+                  (io.greptime.v1.Common.AffectedRows) response_,
                   getParentForChildren(),
                   isClean());
           response_ = null;
         }
         responseCase_ = 2;
-        onChanged();;
+        onChanged();
         return affectedRowsBuilder_;
       }
       @java.lang.Override
@@ -6184,7 +2456,18 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new GreptimeResponse(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
@@ -6245,11 +2528,11 @@ public final class Database {
      * .greptime.v1.PromRangeQuery prom_range_query = 3;
      * @return The promRangeQuery.
      */
-    io.greptime.v1.Database.PromRangeQuery getPromRangeQuery();
+    io.greptime.v1.Prometheus.PromRangeQuery getPromRangeQuery();
     /**
      * .greptime.v1.PromRangeQuery prom_range_query = 3;
      */
-    io.greptime.v1.Database.PromRangeQueryOrBuilder getPromRangeQueryOrBuilder();
+    io.greptime.v1.Prometheus.PromRangeQueryOrBuilder getPromRangeQueryOrBuilder();
 
     public io.greptime.v1.Database.QueryRequest.QueryCase getQueryCase();
   }
@@ -6280,68 +2563,6 @@ public final class Database {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private QueryRequest(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              java.lang.String s = input.readStringRequireUtf8();
-              queryCase_ = 1;
-              query_ = s;
-              break;
-            }
-            case 18: {
-              query_ = input.readBytes();
-              queryCase_ = 2;
-              break;
-            }
-            case 26: {
-              io.greptime.v1.Database.PromRangeQuery.Builder subBuilder = null;
-              if (queryCase_ == 3) {
-                subBuilder = ((io.greptime.v1.Database.PromRangeQuery) query_).toBuilder();
-              }
-              query_ =
-                  input.readMessage(io.greptime.v1.Database.PromRangeQuery.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((io.greptime.v1.Database.PromRangeQuery) query_);
-                query_ = subBuilder.buildPartial();
-              }
-              queryCase_ = 3;
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Database.internal_static_greptime_v1_QueryRequest_descriptor;
@@ -6485,21 +2706,21 @@ public final class Database {
      * @return The promRangeQuery.
      */
     @java.lang.Override
-    public io.greptime.v1.Database.PromRangeQuery getPromRangeQuery() {
+    public io.greptime.v1.Prometheus.PromRangeQuery getPromRangeQuery() {
       if (queryCase_ == 3) {
-         return (io.greptime.v1.Database.PromRangeQuery) query_;
+         return (io.greptime.v1.Prometheus.PromRangeQuery) query_;
       }
-      return io.greptime.v1.Database.PromRangeQuery.getDefaultInstance();
+      return io.greptime.v1.Prometheus.PromRangeQuery.getDefaultInstance();
     }
     /**
      * .greptime.v1.PromRangeQuery prom_range_query = 3;
      */
     @java.lang.Override
-    public io.greptime.v1.Database.PromRangeQueryOrBuilder getPromRangeQueryOrBuilder() {
+    public io.greptime.v1.Prometheus.PromRangeQueryOrBuilder getPromRangeQueryOrBuilder() {
       if (queryCase_ == 3) {
-         return (io.greptime.v1.Database.PromRangeQuery) query_;
+         return (io.greptime.v1.Prometheus.PromRangeQuery) query_;
       }
-      return io.greptime.v1.Database.PromRangeQuery.getDefaultInstance();
+      return io.greptime.v1.Prometheus.PromRangeQuery.getDefaultInstance();
     }
 
     private byte memoizedIsInitialized = -1;
@@ -6524,9 +2745,9 @@ public final class Database {
             2, (com.google.protobuf.ByteString) query_);
       }
       if (queryCase_ == 3) {
-        output.writeMessage(3, (io.greptime.v1.Database.PromRangeQuery) query_);
+        output.writeMessage(3, (io.greptime.v1.Prometheus.PromRangeQuery) query_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -6545,9 +2766,9 @@ public final class Database {
       }
       if (queryCase_ == 3) {
         size += com.google.protobuf.CodedOutputStream
-          .computeMessageSize(3, (io.greptime.v1.Database.PromRangeQuery) query_);
+          .computeMessageSize(3, (io.greptime.v1.Prometheus.PromRangeQuery) query_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -6579,7 +2800,7 @@ public final class Database {
         case 0:
         default:
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -6606,7 +2827,7 @@ public final class Database {
         case 0:
         default:
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -6723,22 +2944,21 @@ public final class Database {
 
       // Construct using io.greptime.v1.Database.QueryRequest.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
+        bitField0_ = 0;
+        if (promRangeQueryBuilder_ != null) {
+          promRangeQueryBuilder_.clear();
+        }
         queryCase_ = 0;
         query_ = null;
         return this;
@@ -6767,24 +2987,25 @@ public final class Database {
       @java.lang.Override
       public io.greptime.v1.Database.QueryRequest buildPartial() {
         io.greptime.v1.Database.QueryRequest result = new io.greptime.v1.Database.QueryRequest(this);
-        if (queryCase_ == 1) {
-          result.query_ = query_;
-        }
-        if (queryCase_ == 2) {
-          result.query_ = query_;
-        }
-        if (queryCase_ == 3) {
-          if (promRangeQueryBuilder_ == null) {
-            result.query_ = query_;
-          } else {
-            result.query_ = promRangeQueryBuilder_.build();
-          }
-        }
-        result.queryCase_ = queryCase_;
+        if (bitField0_ != 0) { buildPartial0(result); }
+        buildPartialOneofs(result);
         onBuilt();
         return result;
       }
 
+      private void buildPartial0(io.greptime.v1.Database.QueryRequest result) {
+        int from_bitField0_ = bitField0_;
+      }
+
+      private void buildPartialOneofs(io.greptime.v1.Database.QueryRequest result) {
+        result.queryCase_ = queryCase_;
+        result.query_ = this.query_;
+        if (queryCase_ == 3 &&
+            promRangeQueryBuilder_ != null) {
+          result.query_ = promRangeQueryBuilder_.build();
+        }
+      }
+
       @java.lang.Override
       public Builder clone() {
         return super.clone();
@@ -6848,7 +3069,7 @@ public final class Database {
             break;
           }
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -6863,17 +3084,48 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Database.QueryRequest parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                java.lang.String s = input.readStringRequireUtf8();
+                queryCase_ = 1;
+                query_ = s;
+                break;
+              } // case 10
+              case 18: {
+                query_ = input.readBytes();
+                queryCase_ = 2;
+                break;
+              } // case 18
+              case 26: {
+                input.readMessage(
+                    getPromRangeQueryFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                queryCase_ = 3;
+                break;
+              } // case 26
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Database.QueryRequest) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
       private int queryCase_ = 0;
@@ -6891,6 +3143,7 @@ public final class Database {
         return this;
       }
 
+      private int bitField0_;
 
       /**
        * string sql = 1;
@@ -6952,10 +3205,8 @@ public final class Database {
        */
       public Builder setSql(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  queryCase_ = 1;
+        if (value == null) { throw new NullPointerException(); }
+        queryCase_ = 1;
         query_ = value;
         onChanged();
         return this;
@@ -6979,10 +3230,8 @@ public final class Database {
        */
       public Builder setSqlBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         queryCase_ = 1;
         query_ = value;
         onChanged();
@@ -7012,10 +3261,8 @@ public final class Database {
        * @return This builder for chaining.
        */
       public Builder setLogicalPlan(com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  queryCase_ = 2;
+        if (value == null) { throw new NullPointerException(); }
+        queryCase_ = 2;
         query_ = value;
         onChanged();
         return this;
@@ -7034,7 +3281,7 @@ public final class Database {
       }
 
       private com.google.protobuf.SingleFieldBuilderV3<
-          io.greptime.v1.Database.PromRangeQuery, io.greptime.v1.Database.PromRangeQuery.Builder, io.greptime.v1.Database.PromRangeQueryOrBuilder> promRangeQueryBuilder_;
+          io.greptime.v1.Prometheus.PromRangeQuery, io.greptime.v1.Prometheus.PromRangeQuery.Builder, io.greptime.v1.Prometheus.PromRangeQueryOrBuilder> promRangeQueryBuilder_;
       /**
        * .greptime.v1.PromRangeQuery prom_range_query = 3;
        * @return Whether the promRangeQuery field is set.
@@ -7048,23 +3295,23 @@ public final class Database {
        * @return The promRangeQuery.
        */
       @java.lang.Override
-      public io.greptime.v1.Database.PromRangeQuery getPromRangeQuery() {
+      public io.greptime.v1.Prometheus.PromRangeQuery getPromRangeQuery() {
         if (promRangeQueryBuilder_ == null) {
           if (queryCase_ == 3) {
-            return (io.greptime.v1.Database.PromRangeQuery) query_;
+            return (io.greptime.v1.Prometheus.PromRangeQuery) query_;
           }
-          return io.greptime.v1.Database.PromRangeQuery.getDefaultInstance();
+          return io.greptime.v1.Prometheus.PromRangeQuery.getDefaultInstance();
         } else {
           if (queryCase_ == 3) {
             return promRangeQueryBuilder_.getMessage();
           }
-          return io.greptime.v1.Database.PromRangeQuery.getDefaultInstance();
+          return io.greptime.v1.Prometheus.PromRangeQuery.getDefaultInstance();
         }
       }
       /**
        * .greptime.v1.PromRangeQuery prom_range_query = 3;
        */
-      public Builder setPromRangeQuery(io.greptime.v1.Database.PromRangeQuery value) {
+      public Builder setPromRangeQuery(io.greptime.v1.Prometheus.PromRangeQuery value) {
         if (promRangeQueryBuilder_ == null) {
           if (value == null) {
             throw new NullPointerException();
@@ -7081,7 +3328,7 @@ public final class Database {
        * .greptime.v1.PromRangeQuery prom_range_query = 3;
        */
       public Builder setPromRangeQuery(
-          io.greptime.v1.Database.PromRangeQuery.Builder builderForValue) {
+          io.greptime.v1.Prometheus.PromRangeQuery.Builder builderForValue) {
         if (promRangeQueryBuilder_ == null) {
           query_ = builderForValue.build();
           onChanged();
@@ -7094,11 +3341,11 @@ public final class Database {
       /**
        * .greptime.v1.PromRangeQuery prom_range_query = 3;
        */
-      public Builder mergePromRangeQuery(io.greptime.v1.Database.PromRangeQuery value) {
+      public Builder mergePromRangeQuery(io.greptime.v1.Prometheus.PromRangeQuery value) {
         if (promRangeQueryBuilder_ == null) {
           if (queryCase_ == 3 &&
-              query_ != io.greptime.v1.Database.PromRangeQuery.getDefaultInstance()) {
-            query_ = io.greptime.v1.Database.PromRangeQuery.newBuilder((io.greptime.v1.Database.PromRangeQuery) query_)
+              query_ != io.greptime.v1.Prometheus.PromRangeQuery.getDefaultInstance()) {
+            query_ = io.greptime.v1.Prometheus.PromRangeQuery.newBuilder((io.greptime.v1.Prometheus.PromRangeQuery) query_)
                 .mergeFrom(value).buildPartial();
           } else {
             query_ = value;
@@ -7107,8 +3354,9 @@ public final class Database {
         } else {
           if (queryCase_ == 3) {
             promRangeQueryBuilder_.mergeFrom(value);
+          } else {
+            promRangeQueryBuilder_.setMessage(value);
           }
-          promRangeQueryBuilder_.setMessage(value);
         }
         queryCase_ = 3;
         return this;
@@ -7135,42 +3383,42 @@ public final class Database {
       /**
        * .greptime.v1.PromRangeQuery prom_range_query = 3;
        */
-      public io.greptime.v1.Database.PromRangeQuery.Builder getPromRangeQueryBuilder() {
+      public io.greptime.v1.Prometheus.PromRangeQuery.Builder getPromRangeQueryBuilder() {
         return getPromRangeQueryFieldBuilder().getBuilder();
       }
       /**
        * .greptime.v1.PromRangeQuery prom_range_query = 3;
        */
       @java.lang.Override
-      public io.greptime.v1.Database.PromRangeQueryOrBuilder getPromRangeQueryOrBuilder() {
+      public io.greptime.v1.Prometheus.PromRangeQueryOrBuilder getPromRangeQueryOrBuilder() {
         if ((queryCase_ == 3) && (promRangeQueryBuilder_ != null)) {
           return promRangeQueryBuilder_.getMessageOrBuilder();
         } else {
           if (queryCase_ == 3) {
-            return (io.greptime.v1.Database.PromRangeQuery) query_;
+            return (io.greptime.v1.Prometheus.PromRangeQuery) query_;
           }
-          return io.greptime.v1.Database.PromRangeQuery.getDefaultInstance();
+          return io.greptime.v1.Prometheus.PromRangeQuery.getDefaultInstance();
         }
       }
       /**
        * .greptime.v1.PromRangeQuery prom_range_query = 3;
        */
       private com.google.protobuf.SingleFieldBuilderV3<
-          io.greptime.v1.Database.PromRangeQuery, io.greptime.v1.Database.PromRangeQuery.Builder, io.greptime.v1.Database.PromRangeQueryOrBuilder> 
+          io.greptime.v1.Prometheus.PromRangeQuery, io.greptime.v1.Prometheus.PromRangeQuery.Builder, io.greptime.v1.Prometheus.PromRangeQueryOrBuilder> 
           getPromRangeQueryFieldBuilder() {
         if (promRangeQueryBuilder_ == null) {
           if (!(queryCase_ == 3)) {
-            query_ = io.greptime.v1.Database.PromRangeQuery.getDefaultInstance();
+            query_ = io.greptime.v1.Prometheus.PromRangeQuery.getDefaultInstance();
           }
           promRangeQueryBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
-              io.greptime.v1.Database.PromRangeQuery, io.greptime.v1.Database.PromRangeQuery.Builder, io.greptime.v1.Database.PromRangeQueryOrBuilder>(
-                  (io.greptime.v1.Database.PromRangeQuery) query_,
+              io.greptime.v1.Prometheus.PromRangeQuery, io.greptime.v1.Prometheus.PromRangeQuery.Builder, io.greptime.v1.Prometheus.PromRangeQueryOrBuilder>(
+                  (io.greptime.v1.Prometheus.PromRangeQuery) query_,
                   getParentForChildren(),
                   isClean());
           query_ = null;
         }
         queryCase_ = 3;
-        onChanged();;
+        onChanged();
         return promRangeQueryBuilder_;
       }
       @java.lang.Override
@@ -7206,7 +3454,18 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new QueryRequest(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
@@ -7226,1024 +3485,6 @@ public final class Database {
 
   }
 
-  public interface PromRangeQueryOrBuilder extends
-      // @@protoc_insertion_point(interface_extends:greptime.v1.PromRangeQuery)
-      com.google.protobuf.MessageOrBuilder {
-
-    /**
-     * string query = 1;
-     * @return The query.
-     */
-    java.lang.String getQuery();
-    /**
-     * string query = 1;
-     * @return The bytes for query.
-     */
-    com.google.protobuf.ByteString
-        getQueryBytes();
-
-    /**
-     * string start = 2;
-     * @return The start.
-     */
-    java.lang.String getStart();
-    /**
-     * string start = 2;
-     * @return The bytes for start.
-     */
-    com.google.protobuf.ByteString
-        getStartBytes();
-
-    /**
-     * string end = 3;
-     * @return The end.
-     */
-    java.lang.String getEnd();
-    /**
-     * string end = 3;
-     * @return The bytes for end.
-     */
-    com.google.protobuf.ByteString
-        getEndBytes();
-
-    /**
-     * string step = 4;
-     * @return The step.
-     */
-    java.lang.String getStep();
-    /**
-     * string step = 4;
-     * @return The bytes for step.
-     */
-    com.google.protobuf.ByteString
-        getStepBytes();
-  }
-  /**
-   * Protobuf type {@code greptime.v1.PromRangeQuery}
-   */
-  public static final class PromRangeQuery extends
-      com.google.protobuf.GeneratedMessageV3 implements
-      // @@protoc_insertion_point(message_implements:greptime.v1.PromRangeQuery)
-      PromRangeQueryOrBuilder {
-  private static final long serialVersionUID = 0L;
-    // Use PromRangeQuery.newBuilder() to construct.
-    private PromRangeQuery(com.google.protobuf.GeneratedMessageV3.Builder builder) {
-      super(builder);
-    }
-    private PromRangeQuery() {
-      query_ = "";
-      start_ = "";
-      end_ = "";
-      step_ = "";
-    }
-
-    @java.lang.Override
-    @SuppressWarnings({"unused"})
-    protected java.lang.Object newInstance(
-        UnusedPrivateParameter unused) {
-      return new PromRangeQuery();
-    }
-
-    @java.lang.Override
-    public final com.google.protobuf.UnknownFieldSet
-    getUnknownFields() {
-      return this.unknownFields;
-    }
-    private PromRangeQuery(
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-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
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-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              query_ = s;
-              break;
-            }
-            case 18: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              start_ = s;
-              break;
-            }
-            case 26: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              end_ = s;
-              break;
-            }
-            case 34: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              step_ = s;
-              break;
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-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
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-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-    public static final com.google.protobuf.Descriptors.Descriptor
-        getDescriptor() {
-      return io.greptime.v1.Database.internal_static_greptime_v1_PromRangeQuery_descriptor;
-    }
-
-    @java.lang.Override
-    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-        internalGetFieldAccessorTable() {
-      return io.greptime.v1.Database.internal_static_greptime_v1_PromRangeQuery_fieldAccessorTable
-          .ensureFieldAccessorsInitialized(
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-
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-    private volatile java.lang.Object query_;
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-     * @return The query.
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-    public java.lang.String getQuery() {
-      java.lang.Object ref = query_;
-      if (ref instanceof java.lang.String) {
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-      } else {
-        com.google.protobuf.ByteString bs = 
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-        java.lang.String s = bs.toStringUtf8();
-        query_ = s;
-        return s;
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-    /**
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-     * @return The bytes for query.
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-    @java.lang.Override
-    public com.google.protobuf.ByteString
-        getQueryBytes() {
-      java.lang.Object ref = query_;
-      if (ref instanceof java.lang.String) {
-        com.google.protobuf.ByteString b = 
-            com.google.protobuf.ByteString.copyFromUtf8(
-                (java.lang.String) ref);
-        query_ = b;
-        return b;
-      } else {
-        return (com.google.protobuf.ByteString) ref;
-      }
-    }
-
-    public static final int START_FIELD_NUMBER = 2;
-    private volatile java.lang.Object start_;
-    /**
-     * string start = 2;
-     * @return The start.
-     */
-    @java.lang.Override
-    public java.lang.String getStart() {
-      java.lang.Object ref = start_;
-      if (ref instanceof java.lang.String) {
-        return (java.lang.String) ref;
-      } else {
-        com.google.protobuf.ByteString bs = 
-            (com.google.protobuf.ByteString) ref;
-        java.lang.String s = bs.toStringUtf8();
-        start_ = s;
-        return s;
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-    }
-    /**
-     * string start = 2;
-     * @return The bytes for start.
-     */
-    @java.lang.Override
-    public com.google.protobuf.ByteString
-        getStartBytes() {
-      java.lang.Object ref = start_;
-      if (ref instanceof java.lang.String) {
-        com.google.protobuf.ByteString b = 
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-        start_ = b;
-        return b;
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-    private volatile java.lang.Object end_;
-    /**
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-     * @return The end.
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-    public java.lang.String getEnd() {
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-      if (ref instanceof java.lang.String) {
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-      if (isInitialized == 1) return true;
-      if (isInitialized == 0) return false;
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-      memoizedIsInitialized = 1;
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-
-    @java.lang.Override
-    public void writeTo(com.google.protobuf.CodedOutputStream output)
-                        throws java.io.IOException {
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(query_)) {
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-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(step_)) {
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-
-    @java.lang.Override
-    public int getSerializedSize() {
-      int size = memoizedSize;
-      if (size != -1) return size;
-
-      size = 0;
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(query_)) {
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-      }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(end_)) {
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-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(step_)) {
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-      memoizedSize = size;
-      return size;
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-
-    @java.lang.Override
-    public boolean equals(final java.lang.Object obj) {
-      if (obj == this) {
-       return true;
-      }
-      if (!(obj instanceof io.greptime.v1.Database.PromRangeQuery)) {
-        return super.equals(obj);
-      }
-      io.greptime.v1.Database.PromRangeQuery other = (io.greptime.v1.Database.PromRangeQuery) obj;
-
-      if (!getQuery()
-          .equals(other.getQuery())) return false;
-      if (!getStart()
-          .equals(other.getStart())) return false;
-      if (!getEnd()
-          .equals(other.getEnd())) return false;
-      if (!getStep()
-          .equals(other.getStep())) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
-      return true;
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-
-    @java.lang.Override
-    public int hashCode() {
-      if (memoizedHashCode != 0) {
-        return memoizedHashCode;
-      }
-      int hash = 41;
-      hash = (19 * hash) + getDescriptor().hashCode();
-      hash = (37 * hash) + QUERY_FIELD_NUMBER;
-      hash = (53 * hash) + getQuery().hashCode();
-      hash = (37 * hash) + START_FIELD_NUMBER;
-      hash = (53 * hash) + getStart().hashCode();
-      hash = (37 * hash) + END_FIELD_NUMBER;
-      hash = (53 * hash) + getEnd().hashCode();
-      hash = (37 * hash) + STEP_FIELD_NUMBER;
-      hash = (53 * hash) + getStep().hashCode();
-      hash = (29 * hash) + unknownFields.hashCode();
-      memoizedHashCode = hash;
-      return hash;
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-    public static io.greptime.v1.Database.PromRangeQuery parseFrom(
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-        throws com.google.protobuf.InvalidProtocolBufferException {
-      return PARSER.parseFrom(data);
-    }
-    public static io.greptime.v1.Database.PromRangeQuery parseFrom(
-        java.nio.ByteBuffer data,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      return PARSER.parseFrom(data, extensionRegistry);
-    }
-    public static io.greptime.v1.Database.PromRangeQuery parseFrom(
-        com.google.protobuf.ByteString data)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      return PARSER.parseFrom(data);
-    }
-    public static io.greptime.v1.Database.PromRangeQuery parseFrom(
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-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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-      return PARSER.parseFrom(data, extensionRegistry);
-    }
-    public static io.greptime.v1.Database.PromRangeQuery parseFrom(byte[] data)
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-    }
-    public static io.greptime.v1.Database.PromRangeQuery parseFrom(
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-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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-      return PARSER.parseFrom(data, extensionRegistry);
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-    public static io.greptime.v1.Database.PromRangeQuery parseFrom(java.io.InputStream input)
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-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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-    public static io.greptime.v1.Database.PromRangeQuery parseDelimitedFrom(java.io.InputStream input)
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-      return com.google.protobuf.GeneratedMessageV3
-          .parseDelimitedWithIOException(PARSER, input);
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-    public static io.greptime.v1.Database.PromRangeQuery parseDelimitedFrom(
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-      return com.google.protobuf.GeneratedMessageV3
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-    public static io.greptime.v1.Database.PromRangeQuery parseFrom(
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-
-      @java.lang.Override
-      public io.greptime.v1.Database.PromRangeQuery buildPartial() {
-        io.greptime.v1.Database.PromRangeQuery result = new io.greptime.v1.Database.PromRangeQuery(this);
-        result.query_ = query_;
-        result.start_ = start_;
-        result.end_ = end_;
-        result.step_ = step_;
-        onBuilt();
-        return result;
-      }
-
-      @java.lang.Override
-      public Builder clone() {
-        return super.clone();
-      }
-      @java.lang.Override
-      public Builder setField(
-          com.google.protobuf.Descriptors.FieldDescriptor field,
-          java.lang.Object value) {
-        return super.setField(field, value);
-      }
-      @java.lang.Override
-      public Builder clearField(
-          com.google.protobuf.Descriptors.FieldDescriptor field) {
-        return super.clearField(field);
-      }
-      @java.lang.Override
-      public Builder clearOneof(
-          com.google.protobuf.Descriptors.OneofDescriptor oneof) {
-        return super.clearOneof(oneof);
-      }
-      @java.lang.Override
-      public Builder setRepeatedField(
-          com.google.protobuf.Descriptors.FieldDescriptor field,
-          int index, java.lang.Object value) {
-        return super.setRepeatedField(field, index, value);
-      }
-      @java.lang.Override
-      public Builder addRepeatedField(
-          com.google.protobuf.Descriptors.FieldDescriptor field,
-          java.lang.Object value) {
-        return super.addRepeatedField(field, value);
-      }
-      @java.lang.Override
-      public Builder mergeFrom(com.google.protobuf.Message other) {
-        if (other instanceof io.greptime.v1.Database.PromRangeQuery) {
-          return mergeFrom((io.greptime.v1.Database.PromRangeQuery)other);
-        } else {
-          super.mergeFrom(other);
-          return this;
-        }
-      }
-
-      public Builder mergeFrom(io.greptime.v1.Database.PromRangeQuery other) {
-        if (other == io.greptime.v1.Database.PromRangeQuery.getDefaultInstance()) return this;
-        if (!other.getQuery().isEmpty()) {
-          query_ = other.query_;
-          onChanged();
-        }
-        if (!other.getStart().isEmpty()) {
-          start_ = other.start_;
-          onChanged();
-        }
-        if (!other.getEnd().isEmpty()) {
-          end_ = other.end_;
-          onChanged();
-        }
-        if (!other.getStep().isEmpty()) {
-          step_ = other.step_;
-          onChanged();
-        }
-        this.mergeUnknownFields(other.unknownFields);
-        onChanged();
-        return this;
-      }
-
-      @java.lang.Override
-      public final boolean isInitialized() {
-        return true;
-      }
-
-      @java.lang.Override
-      public Builder mergeFrom(
-          com.google.protobuf.CodedInputStream input,
-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws java.io.IOException {
-        io.greptime.v1.Database.PromRangeQuery parsedMessage = null;
-        try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
-        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Database.PromRangeQuery) e.getUnfinishedMessage();
-          throw e.unwrapIOException();
-        } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
-        return this;
-      }
-
-      private java.lang.Object query_ = "";
-      /**
-       * string query = 1;
-       * @return The query.
-       */
-      public java.lang.String getQuery() {
-        java.lang.Object ref = query_;
-        if (!(ref instanceof java.lang.String)) {
-          com.google.protobuf.ByteString bs =
-              (com.google.protobuf.ByteString) ref;
-          java.lang.String s = bs.toStringUtf8();
-          query_ = s;
-          return s;
-        } else {
-          return (java.lang.String) ref;
-        }
-      }
-      /**
-       * string query = 1;
-       * @return The bytes for query.
-       */
-      public com.google.protobuf.ByteString
-          getQueryBytes() {
-        java.lang.Object ref = query_;
-        if (ref instanceof String) {
-          com.google.protobuf.ByteString b = 
-              com.google.protobuf.ByteString.copyFromUtf8(
-                  (java.lang.String) ref);
-          query_ = b;
-          return b;
-        } else {
-          return (com.google.protobuf.ByteString) ref;
-        }
-      }
-      /**
-       * string query = 1;
-       * @param value The query to set.
-       * @return This builder for chaining.
-       */
-      public Builder setQuery(
-          java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
-        query_ = value;
-        onChanged();
-        return this;
-      }
-      /**
-       * string query = 1;
-       * @return This builder for chaining.
-       */
-      public Builder clearQuery() {
-        
-        query_ = getDefaultInstance().getQuery();
-        onChanged();
-        return this;
-      }
-      /**
-       * string query = 1;
-       * @param value The bytes for query to set.
-       * @return This builder for chaining.
-       */
-      public Builder setQueryBytes(
-          com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
-        query_ = value;
-        onChanged();
-        return this;
-      }
-
-      private java.lang.Object start_ = "";
-      /**
-       * string start = 2;
-       * @return The start.
-       */
-      public java.lang.String getStart() {
-        java.lang.Object ref = start_;
-        if (!(ref instanceof java.lang.String)) {
-          com.google.protobuf.ByteString bs =
-              (com.google.protobuf.ByteString) ref;
-          java.lang.String s = bs.toStringUtf8();
-          start_ = s;
-          return s;
-        } else {
-          return (java.lang.String) ref;
-        }
-      }
-      /**
-       * string start = 2;
-       * @return The bytes for start.
-       */
-      public com.google.protobuf.ByteString
-          getStartBytes() {
-        java.lang.Object ref = start_;
-        if (ref instanceof String) {
-          com.google.protobuf.ByteString b = 
-              com.google.protobuf.ByteString.copyFromUtf8(
-                  (java.lang.String) ref);
-          start_ = b;
-          return b;
-        } else {
-          return (com.google.protobuf.ByteString) ref;
-        }
-      }
-      /**
-       * string start = 2;
-       * @param value The start to set.
-       * @return This builder for chaining.
-       */
-      public Builder setStart(
-          java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
-        start_ = value;
-        onChanged();
-        return this;
-      }
-      /**
-       * string start = 2;
-       * @return This builder for chaining.
-       */
-      public Builder clearStart() {
-        
-        start_ = getDefaultInstance().getStart();
-        onChanged();
-        return this;
-      }
-      /**
-       * string start = 2;
-       * @param value The bytes for start to set.
-       * @return This builder for chaining.
-       */
-      public Builder setStartBytes(
-          com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
-        start_ = value;
-        onChanged();
-        return this;
-      }
-
-      private java.lang.Object end_ = "";
-      /**
-       * string end = 3;
-       * @return The end.
-       */
-      public java.lang.String getEnd() {
-        java.lang.Object ref = end_;
-        if (!(ref instanceof java.lang.String)) {
-          com.google.protobuf.ByteString bs =
-              (com.google.protobuf.ByteString) ref;
-          java.lang.String s = bs.toStringUtf8();
-          end_ = s;
-          return s;
-        } else {
-          return (java.lang.String) ref;
-        }
-      }
-      /**
-       * string end = 3;
-       * @return The bytes for end.
-       */
-      public com.google.protobuf.ByteString
-          getEndBytes() {
-        java.lang.Object ref = end_;
-        if (ref instanceof String) {
-          com.google.protobuf.ByteString b = 
-              com.google.protobuf.ByteString.copyFromUtf8(
-                  (java.lang.String) ref);
-          end_ = b;
-          return b;
-        } else {
-          return (com.google.protobuf.ByteString) ref;
-        }
-      }
-      /**
-       * string end = 3;
-       * @param value The end to set.
-       * @return This builder for chaining.
-       */
-      public Builder setEnd(
-          java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
-        end_ = value;
-        onChanged();
-        return this;
-      }
-      /**
-       * string end = 3;
-       * @return This builder for chaining.
-       */
-      public Builder clearEnd() {
-        
-        end_ = getDefaultInstance().getEnd();
-        onChanged();
-        return this;
-      }
-      /**
-       * string end = 3;
-       * @param value The bytes for end to set.
-       * @return This builder for chaining.
-       */
-      public Builder setEndBytes(
-          com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
-        end_ = value;
-        onChanged();
-        return this;
-      }
-
-      private java.lang.Object step_ = "";
-      /**
-       * string step = 4;
-       * @return The step.
-       */
-      public java.lang.String getStep() {
-        java.lang.Object ref = step_;
-        if (!(ref instanceof java.lang.String)) {
-          com.google.protobuf.ByteString bs =
-              (com.google.protobuf.ByteString) ref;
-          java.lang.String s = bs.toStringUtf8();
-          step_ = s;
-          return s;
-        } else {
-          return (java.lang.String) ref;
-        }
-      }
-      /**
-       * string step = 4;
-       * @return The bytes for step.
-       */
-      public com.google.protobuf.ByteString
-          getStepBytes() {
-        java.lang.Object ref = step_;
-        if (ref instanceof String) {
-          com.google.protobuf.ByteString b = 
-              com.google.protobuf.ByteString.copyFromUtf8(
-                  (java.lang.String) ref);
-          step_ = b;
-          return b;
-        } else {
-          return (com.google.protobuf.ByteString) ref;
-        }
-      }
-      /**
-       * string step = 4;
-       * @param value The step to set.
-       * @return This builder for chaining.
-       */
-      public Builder setStep(
-          java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
-        step_ = value;
-        onChanged();
-        return this;
-      }
-      /**
-       * string step = 4;
-       * @return This builder for chaining.
-       */
-      public Builder clearStep() {
-        
-        step_ = getDefaultInstance().getStep();
-        onChanged();
-        return this;
-      }
-      /**
-       * string step = 4;
-       * @param value The bytes for step to set.
-       * @return This builder for chaining.
-       */
-      public Builder setStepBytes(
-          com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
-        step_ = value;
-        onChanged();
-        return this;
-      }
-      @java.lang.Override
-      public final Builder setUnknownFields(
-          final com.google.protobuf.UnknownFieldSet unknownFields) {
-        return super.setUnknownFields(unknownFields);
-      }
-
-      @java.lang.Override
-      public final Builder mergeUnknownFields(
-          final com.google.protobuf.UnknownFieldSet unknownFields) {
-        return super.mergeUnknownFields(unknownFields);
-      }
-
-
-      // @@protoc_insertion_point(builder_scope:greptime.v1.PromRangeQuery)
-    }
-
-    // @@protoc_insertion_point(class_scope:greptime.v1.PromRangeQuery)
-    private static final io.greptime.v1.Database.PromRangeQuery DEFAULT_INSTANCE;
-    static {
-      DEFAULT_INSTANCE = new io.greptime.v1.Database.PromRangeQuery();
-    }
-
-    public static io.greptime.v1.Database.PromRangeQuery getDefaultInstance() {
-      return DEFAULT_INSTANCE;
-    }
-
-    private static final com.google.protobuf.Parser
-        PARSER = new com.google.protobuf.AbstractParser() {
-      @java.lang.Override
-      public PromRangeQuery parsePartialFrom(
-          com.google.protobuf.CodedInputStream input,
-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws com.google.protobuf.InvalidProtocolBufferException {
-        return new PromRangeQuery(input, extensionRegistry);
-      }
-    };
-
-    public static com.google.protobuf.Parser parser() {
-      return PARSER;
-    }
-
-    @java.lang.Override
-    public com.google.protobuf.Parser getParserForType() {
-      return PARSER;
-    }
-
-    @java.lang.Override
-    public io.greptime.v1.Database.PromRangeQuery getDefaultInstanceForType() {
-      return DEFAULT_INSTANCE;
-    }
-
-  }
-
   public interface InsertRequestOrBuilder extends
       // @@protoc_insertion_point(interface_extends:greptime.v1.InsertRequest)
       com.google.protobuf.MessageOrBuilder {
@@ -8354,72 +3595,6 @@ public final class Database {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private InsertRequest(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      int mutable_bitField0_ = 0;
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              tableName_ = s;
-              break;
-            }
-            case 26: {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                columns_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              columns_.add(
-                  input.readMessage(io.greptime.v1.Columns.Column.parser(), extensionRegistry));
-              break;
-            }
-            case 32: {
-
-              rowCount_ = input.readUInt32();
-              break;
-            }
-            case 40: {
-
-              regionNumber_ = input.readUInt32();
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        if (((mutable_bitField0_ & 0x00000001) != 0)) {
-          columns_ = java.util.Collections.unmodifiableList(columns_);
-        }
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Database.internal_static_greptime_v1_InsertRequest_descriptor;
@@ -8434,7 +3609,8 @@ public final class Database {
     }
 
     public static final int TABLE_NAME_FIELD_NUMBER = 1;
-    private volatile java.lang.Object tableName_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object tableName_ = "";
     /**
      * string table_name = 1;
      * @return The tableName.
@@ -8472,6 +3648,7 @@ public final class Database {
     }
 
     public static final int COLUMNS_FIELD_NUMBER = 3;
+    @SuppressWarnings("serial")
     private java.util.List columns_;
     /**
      * 
@@ -8532,7 +3709,7 @@ public final class Database {
     }
 
     public static final int ROW_COUNT_FIELD_NUMBER = 4;
-    private int rowCount_;
+    private int rowCount_ = 0;
     /**
      * 
      * The row_count of all columns, which include null and non-null values.
@@ -8548,7 +3725,7 @@ public final class Database {
     }
 
     public static final int REGION_NUMBER_FIELD_NUMBER = 5;
-    private int regionNumber_;
+    private int regionNumber_ = 0;
     /**
      * 
      * The region number of current insert request.
@@ -8588,7 +3765,7 @@ public final class Database {
       if (regionNumber_ != 0) {
         output.writeUInt32(5, regionNumber_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -8612,7 +3789,7 @@ public final class Database {
         size += com.google.protobuf.CodedOutputStream
           .computeUInt32Size(5, regionNumber_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -8635,7 +3812,7 @@ public final class Database {
           != other.getRowCount()) return false;
       if (getRegionNumber()
           != other.getRegionNumber()) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -8656,7 +3833,7 @@ public final class Database {
       hash = (53 * hash) + getRowCount();
       hash = (37 * hash) + REGION_NUMBER_FIELD_NUMBER;
       hash = (53 * hash) + getRegionNumber();
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -8773,35 +3950,28 @@ public final class Database {
 
       // Construct using io.greptime.v1.Database.InsertRequest.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-          getColumnsFieldBuilder();
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
+        bitField0_ = 0;
         tableName_ = "";
-
         if (columnsBuilder_ == null) {
           columns_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000001);
         } else {
+          columns_ = null;
           columnsBuilder_.clear();
         }
+        bitField0_ = (bitField0_ & ~0x00000002);
         rowCount_ = 0;
-
         regionNumber_ = 0;
-
         return this;
       }
 
@@ -8828,21 +3998,35 @@ public final class Database {
       @java.lang.Override
       public io.greptime.v1.Database.InsertRequest buildPartial() {
         io.greptime.v1.Database.InsertRequest result = new io.greptime.v1.Database.InsertRequest(this);
-        int from_bitField0_ = bitField0_;
-        result.tableName_ = tableName_;
+        buildPartialRepeatedFields(result);
+        if (bitField0_ != 0) { buildPartial0(result); }
+        onBuilt();
+        return result;
+      }
+
+      private void buildPartialRepeatedFields(io.greptime.v1.Database.InsertRequest result) {
         if (columnsBuilder_ == null) {
-          if (((bitField0_ & 0x00000001) != 0)) {
+          if (((bitField0_ & 0x00000002) != 0)) {
             columns_ = java.util.Collections.unmodifiableList(columns_);
-            bitField0_ = (bitField0_ & ~0x00000001);
+            bitField0_ = (bitField0_ & ~0x00000002);
           }
           result.columns_ = columns_;
         } else {
           result.columns_ = columnsBuilder_.build();
         }
-        result.rowCount_ = rowCount_;
-        result.regionNumber_ = regionNumber_;
-        onBuilt();
-        return result;
+      }
+
+      private void buildPartial0(io.greptime.v1.Database.InsertRequest result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.tableName_ = tableName_;
+        }
+        if (((from_bitField0_ & 0x00000004) != 0)) {
+          result.rowCount_ = rowCount_;
+        }
+        if (((from_bitField0_ & 0x00000008) != 0)) {
+          result.regionNumber_ = regionNumber_;
+        }
       }
 
       @java.lang.Override
@@ -8891,13 +4075,14 @@ public final class Database {
         if (other == io.greptime.v1.Database.InsertRequest.getDefaultInstance()) return this;
         if (!other.getTableName().isEmpty()) {
           tableName_ = other.tableName_;
+          bitField0_ |= 0x00000001;
           onChanged();
         }
         if (columnsBuilder_ == null) {
           if (!other.columns_.isEmpty()) {
             if (columns_.isEmpty()) {
               columns_ = other.columns_;
-              bitField0_ = (bitField0_ & ~0x00000001);
+              bitField0_ = (bitField0_ & ~0x00000002);
             } else {
               ensureColumnsIsMutable();
               columns_.addAll(other.columns_);
@@ -8910,7 +4095,7 @@ public final class Database {
               columnsBuilder_.dispose();
               columnsBuilder_ = null;
               columns_ = other.columns_;
-              bitField0_ = (bitField0_ & ~0x00000001);
+              bitField0_ = (bitField0_ & ~0x00000002);
               columnsBuilder_ = 
                 com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                    getColumnsFieldBuilder() : null;
@@ -8925,7 +4110,7 @@ public final class Database {
         if (other.getRegionNumber() != 0) {
           setRegionNumber(other.getRegionNumber());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -8940,17 +4125,58 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Database.InsertRequest parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                tableName_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+              case 26: {
+                io.greptime.v1.Columns.Column m =
+                    input.readMessage(
+                        io.greptime.v1.Columns.Column.parser(),
+                        extensionRegistry);
+                if (columnsBuilder_ == null) {
+                  ensureColumnsIsMutable();
+                  columns_.add(m);
+                } else {
+                  columnsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 26
+              case 32: {
+                rowCount_ = input.readUInt32();
+                bitField0_ |= 0x00000004;
+                break;
+              } // case 32
+              case 40: {
+                regionNumber_ = input.readUInt32();
+                bitField0_ |= 0x00000008;
+                break;
+              } // case 40
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Database.InsertRequest) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
       private int bitField0_;
@@ -8996,11 +4222,9 @@ public final class Database {
        */
       public Builder setTableName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         tableName_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -9009,8 +4233,8 @@ public final class Database {
        * @return This builder for chaining.
        */
       public Builder clearTableName() {
-        
         tableName_ = getDefaultInstance().getTableName();
+        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -9021,12 +4245,10 @@ public final class Database {
        */
       public Builder setTableNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         tableName_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -9034,9 +4256,9 @@ public final class Database {
       private java.util.List columns_ =
         java.util.Collections.emptyList();
       private void ensureColumnsIsMutable() {
-        if (!((bitField0_ & 0x00000001) != 0)) {
+        if (!((bitField0_ & 0x00000002) != 0)) {
           columns_ = new java.util.ArrayList(columns_);
-          bitField0_ |= 0x00000001;
+          bitField0_ |= 0x00000002;
          }
       }
 
@@ -9230,7 +4452,7 @@ public final class Database {
       public Builder clearColumns() {
         if (columnsBuilder_ == null) {
           columns_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000001);
+          bitField0_ = (bitField0_ & ~0x00000002);
           onChanged();
         } else {
           columnsBuilder_.clear();
@@ -9335,7 +4557,7 @@ public final class Database {
           columnsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
               io.greptime.v1.Columns.Column, io.greptime.v1.Columns.Column.Builder, io.greptime.v1.Columns.ColumnOrBuilder>(
                   columns_,
-                  ((bitField0_ & 0x00000001) != 0),
+                  ((bitField0_ & 0x00000002) != 0),
                   getParentForChildren(),
                   isClean());
           columns_ = null;
@@ -9370,6 +4592,7 @@ public final class Database {
       public Builder setRowCount(int value) {
         
         rowCount_ = value;
+        bitField0_ |= 0x00000004;
         onChanged();
         return this;
       }
@@ -9383,7 +4606,7 @@ public final class Database {
        * @return This builder for chaining.
        */
       public Builder clearRowCount() {
-        
+        bitField0_ = (bitField0_ & ~0x00000004);
         rowCount_ = 0;
         onChanged();
         return this;
@@ -9414,6 +4637,7 @@ public final class Database {
       public Builder setRegionNumber(int value) {
         
         regionNumber_ = value;
+        bitField0_ |= 0x00000008;
         onChanged();
         return this;
       }
@@ -9426,7 +4650,7 @@ public final class Database {
        * @return This builder for chaining.
        */
       public Builder clearRegionNumber() {
-        
+        bitField0_ = (bitField0_ & ~0x00000008);
         regionNumber_ = 0;
         onChanged();
         return this;
@@ -9464,7 +4688,18 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new InsertRequest(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
@@ -9484,36 +4719,116 @@ public final class Database {
 
   }
 
-  public interface AffectedRowsOrBuilder extends
-      // @@protoc_insertion_point(interface_extends:greptime.v1.AffectedRows)
+  public interface DeleteRequestOrBuilder extends
+      // @@protoc_insertion_point(interface_extends:greptime.v1.DeleteRequest)
       com.google.protobuf.MessageOrBuilder {
 
     /**
-     * uint32 value = 1;
-     * @return The value.
+     * 
+     * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+     * 

+     *
+     * string table_name = 1;
+     * @return The tableName.
      */
-    int getValue();
+    java.lang.String getTableName();
+    /**
+     * 
+     * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+     * 

+     *
+     * string table_name = 1;
+     * @return The bytes for tableName.
+     */
+    com.google.protobuf.ByteString
+        getTableNameBytes();
+
+    /**
+     * 
+     * The region number of current delete request.
+     * 

+     *
+     * uint32 region_number = 2;
+     * @return The regionNumber.
+     */
+    int getRegionNumber();
+
+    /**
+     * 
+     * The data to delete, indexed by key columns.
+     * 

+     *
+     * repeated .greptime.v1.Column key_columns = 3;
+     */
+    java.util.List 
+        getKeyColumnsList();
+    /**
+     * 
+     * The data to delete, indexed by key columns.
+     * 

+     *
+     * repeated .greptime.v1.Column key_columns = 3;
+     */
+    io.greptime.v1.Columns.Column getKeyColumns(int index);
+    /**
+     * 
+     * The data to delete, indexed by key columns.
+     * 

+     *
+     * repeated .greptime.v1.Column key_columns = 3;
+     */
+    int getKeyColumnsCount();
+    /**
+     * 
+     * The data to delete, indexed by key columns.
+     * 

+     *
+     * repeated .greptime.v1.Column key_columns = 3;
+     */
+    java.util.List 
+        getKeyColumnsOrBuilderList();
+    /**
+     * 
+     * The data to delete, indexed by key columns.
+     * 

+     *
+     * repeated .greptime.v1.Column key_columns = 3;
+     */
+    io.greptime.v1.Columns.ColumnOrBuilder getKeyColumnsOrBuilder(
+        int index);
+
+    /**
+     * 
+     * The row count of all columns above.
+     * 

+     *
+     * uint32 row_count = 4;
+     * @return The rowCount.
+     */
+    int getRowCount();
   }
   /**
-   * Protobuf type {@code greptime.v1.AffectedRows}
+   * Protobuf type {@code greptime.v1.DeleteRequest}
    */
-  public static final class AffectedRows extends
+  public static final class DeleteRequest extends
       com.google.protobuf.GeneratedMessageV3 implements
-      // @@protoc_insertion_point(message_implements:greptime.v1.AffectedRows)
-      AffectedRowsOrBuilder {
+      // @@protoc_insertion_point(message_implements:greptime.v1.DeleteRequest)
+      DeleteRequestOrBuilder {
   private static final long serialVersionUID = 0L;
-    // Use AffectedRows.newBuilder() to construct.
-    private AffectedRows(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    // Use DeleteRequest.newBuilder() to construct.
+    private DeleteRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
       super(builder);
     }
-    private AffectedRows() {
+    private DeleteRequest() {
+      tableName_ = "";
+      keyColumns_ = java.util.Collections.emptyList();
     }
 
     @java.lang.Override
     @SuppressWarnings({"unused"})
     protected java.lang.Object newInstance(
         UnusedPrivateParameter unused) {
-      return new AffectedRows();
+      return new DeleteRequest();
     }
 
     @java.lang.Override
@@ -9521,70 +4836,155 @@ public final class Database {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private AffectedRows(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 8: {
-
-              value_ = input.readUInt32();
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
-      return io.greptime.v1.Database.internal_static_greptime_v1_AffectedRows_descriptor;
+      return io.greptime.v1.Database.internal_static_greptime_v1_DeleteRequest_descriptor;
     }
 
     @java.lang.Override
     protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
         internalGetFieldAccessorTable() {
-      return io.greptime.v1.Database.internal_static_greptime_v1_AffectedRows_fieldAccessorTable
+      return io.greptime.v1.Database.internal_static_greptime_v1_DeleteRequest_fieldAccessorTable
           .ensureFieldAccessorsInitialized(
-              io.greptime.v1.Database.AffectedRows.class, io.greptime.v1.Database.AffectedRows.Builder.class);
+              io.greptime.v1.Database.DeleteRequest.class, io.greptime.v1.Database.DeleteRequest.Builder.class);
     }
 
-    public static final int VALUE_FIELD_NUMBER = 1;
-    private int value_;
+    public static final int TABLE_NAME_FIELD_NUMBER = 1;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object tableName_ = "";
     /**
-     * uint32 value = 1;
-     * @return The value.
+     * 
+     * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+     * 

+     *
+     * string table_name = 1;
+     * @return The tableName.
      */
     @java.lang.Override
-    public int getValue() {
-      return value_;
+    public java.lang.String getTableName() {
+      java.lang.Object ref = tableName_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = 
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        tableName_ = s;
+        return s;
+      }
+    }
+    /**
+     * 
+     * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+     * 

+     *
+     * string table_name = 1;
+     * @return The bytes for tableName.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString
+        getTableNameBytes() {
+      java.lang.Object ref = tableName_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        tableName_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int REGION_NUMBER_FIELD_NUMBER = 2;
+    private int regionNumber_ = 0;
+    /**
+     * 
+     * The region number of current delete request.
+     * 

+     *
+     * uint32 region_number = 2;
+     * @return The regionNumber.
+     */
+    @java.lang.Override
+    public int getRegionNumber() {
+      return regionNumber_;
+    }
+
+    public static final int KEY_COLUMNS_FIELD_NUMBER = 3;
+    @SuppressWarnings("serial")
+    private java.util.List keyColumns_;
+    /**
+     * 
+     * The data to delete, indexed by key columns.
+     * 

+     *
+     * repeated .greptime.v1.Column key_columns = 3;
+     */
+    @java.lang.Override
+    public java.util.List getKeyColumnsList() {
+      return keyColumns_;
+    }
+    /**
+     * 
+     * The data to delete, indexed by key columns.
+     * 

+     *
+     * repeated .greptime.v1.Column key_columns = 3;
+     */
+    @java.lang.Override
+    public java.util.List 
+        getKeyColumnsOrBuilderList() {
+      return keyColumns_;
+    }
+    /**
+     * 
+     * The data to delete, indexed by key columns.
+     * 

+     *
+     * repeated .greptime.v1.Column key_columns = 3;
+     */
+    @java.lang.Override
+    public int getKeyColumnsCount() {
+      return keyColumns_.size();
+    }
+    /**
+     * 
+     * The data to delete, indexed by key columns.
+     * 

+     *
+     * repeated .greptime.v1.Column key_columns = 3;
+     */
+    @java.lang.Override
+    public io.greptime.v1.Columns.Column getKeyColumns(int index) {
+      return keyColumns_.get(index);
+    }
+    /**
+     * 
+     * The data to delete, indexed by key columns.
+     * 

+     *
+     * repeated .greptime.v1.Column key_columns = 3;
+     */
+    @java.lang.Override
+    public io.greptime.v1.Columns.ColumnOrBuilder getKeyColumnsOrBuilder(
+        int index) {
+      return keyColumns_.get(index);
+    }
+
+    public static final int ROW_COUNT_FIELD_NUMBER = 4;
+    private int rowCount_ = 0;
+    /**
+     * 
+     * The row count of all columns above.
+     * 

+     *
+     * uint32 row_count = 4;
+     * @return The rowCount.
+     */
+    @java.lang.Override
+    public int getRowCount() {
+      return rowCount_;
     }
 
     private byte memoizedIsInitialized = -1;
@@ -9601,10 +5001,19 @@ public final class Database {
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
-      if (value_ != 0) {
-        output.writeUInt32(1, value_);
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tableName_)) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, tableName_);
       }
-      unknownFields.writeTo(output);
+      if (regionNumber_ != 0) {
+        output.writeUInt32(2, regionNumber_);
+      }
+      for (int i = 0; i < keyColumns_.size(); i++) {
+        output.writeMessage(3, keyColumns_.get(i));
+      }
+      if (rowCount_ != 0) {
+        output.writeUInt32(4, rowCount_);
+      }
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -9613,11 +5022,22 @@ public final class Database {
       if (size != -1) return size;
 
       size = 0;
-      if (value_ != 0) {
-        size += com.google.protobuf.CodedOutputStream
-          .computeUInt32Size(1, value_);
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tableName_)) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, tableName_);
       }
-      size += unknownFields.getSerializedSize();
+      if (regionNumber_ != 0) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt32Size(2, regionNumber_);
+      }
+      for (int i = 0; i < keyColumns_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(3, keyColumns_.get(i));
+      }
+      if (rowCount_ != 0) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt32Size(4, rowCount_);
+      }
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -9627,14 +5047,20 @@ public final class Database {
       if (obj == this) {
        return true;
       }
-      if (!(obj instanceof io.greptime.v1.Database.AffectedRows)) {
+      if (!(obj instanceof io.greptime.v1.Database.DeleteRequest)) {
         return super.equals(obj);
       }
-      io.greptime.v1.Database.AffectedRows other = (io.greptime.v1.Database.AffectedRows) obj;
+      io.greptime.v1.Database.DeleteRequest other = (io.greptime.v1.Database.DeleteRequest) obj;
 
-      if (getValue()
-          != other.getValue()) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getTableName()
+          .equals(other.getTableName())) return false;
+      if (getRegionNumber()
+          != other.getRegionNumber()) return false;
+      if (!getKeyColumnsList()
+          .equals(other.getKeyColumnsList())) return false;
+      if (getRowCount()
+          != other.getRowCount()) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -9645,76 +5071,84 @@ public final class Database {
       }
       int hash = 41;
       hash = (19 * hash) + getDescriptor().hashCode();
-      hash = (37 * hash) + VALUE_FIELD_NUMBER;
-      hash = (53 * hash) + getValue();
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (37 * hash) + TABLE_NAME_FIELD_NUMBER;
+      hash = (53 * hash) + getTableName().hashCode();
+      hash = (37 * hash) + REGION_NUMBER_FIELD_NUMBER;
+      hash = (53 * hash) + getRegionNumber();
+      if (getKeyColumnsCount() > 0) {
+        hash = (37 * hash) + KEY_COLUMNS_FIELD_NUMBER;
+        hash = (53 * hash) + getKeyColumnsList().hashCode();
+      }
+      hash = (37 * hash) + ROW_COUNT_FIELD_NUMBER;
+      hash = (53 * hash) + getRowCount();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
 
-    public static io.greptime.v1.Database.AffectedRows parseFrom(
+    public static io.greptime.v1.Database.DeleteRequest parseFrom(
         java.nio.ByteBuffer data)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
-    public static io.greptime.v1.Database.AffectedRows parseFrom(
+    public static io.greptime.v1.Database.DeleteRequest parseFrom(
         java.nio.ByteBuffer data,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
-    public static io.greptime.v1.Database.AffectedRows parseFrom(
+    public static io.greptime.v1.Database.DeleteRequest parseFrom(
         com.google.protobuf.ByteString data)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
-    public static io.greptime.v1.Database.AffectedRows parseFrom(
+    public static io.greptime.v1.Database.DeleteRequest parseFrom(
         com.google.protobuf.ByteString data,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
-    public static io.greptime.v1.Database.AffectedRows parseFrom(byte[] data)
+    public static io.greptime.v1.Database.DeleteRequest parseFrom(byte[] data)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
-    public static io.greptime.v1.Database.AffectedRows parseFrom(
+    public static io.greptime.v1.Database.DeleteRequest parseFrom(
         byte[] data,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
-    public static io.greptime.v1.Database.AffectedRows parseFrom(java.io.InputStream input)
+    public static io.greptime.v1.Database.DeleteRequest parseFrom(java.io.InputStream input)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3
           .parseWithIOException(PARSER, input);
     }
-    public static io.greptime.v1.Database.AffectedRows parseFrom(
+    public static io.greptime.v1.Database.DeleteRequest parseFrom(
         java.io.InputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3
           .parseWithIOException(PARSER, input, extensionRegistry);
     }
-    public static io.greptime.v1.Database.AffectedRows parseDelimitedFrom(java.io.InputStream input)
+    public static io.greptime.v1.Database.DeleteRequest parseDelimitedFrom(java.io.InputStream input)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3
           .parseDelimitedWithIOException(PARSER, input);
     }
-    public static io.greptime.v1.Database.AffectedRows parseDelimitedFrom(
+    public static io.greptime.v1.Database.DeleteRequest parseDelimitedFrom(
         java.io.InputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3
           .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
     }
-    public static io.greptime.v1.Database.AffectedRows parseFrom(
+    public static io.greptime.v1.Database.DeleteRequest parseFrom(
         com.google.protobuf.CodedInputStream input)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3
           .parseWithIOException(PARSER, input);
     }
-    public static io.greptime.v1.Database.AffectedRows parseFrom(
+    public static io.greptime.v1.Database.DeleteRequest parseFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
@@ -9727,7 +5161,7 @@ public final class Database {
     public static Builder newBuilder() {
       return DEFAULT_INSTANCE.toBuilder();
     }
-    public static Builder newBuilder(io.greptime.v1.Database.AffectedRows prototype) {
+    public static Builder newBuilder(io.greptime.v1.Database.DeleteRequest prototype) {
       return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
     }
     @java.lang.Override
@@ -9743,62 +5177,66 @@ public final class Database {
       return builder;
     }
     /**
-     * Protobuf type {@code greptime.v1.AffectedRows}
+     * Protobuf type {@code greptime.v1.DeleteRequest}
      */
     public static final class Builder extends
         com.google.protobuf.GeneratedMessageV3.Builder implements
-        // @@protoc_insertion_point(builder_implements:greptime.v1.AffectedRows)
-        io.greptime.v1.Database.AffectedRowsOrBuilder {
+        // @@protoc_insertion_point(builder_implements:greptime.v1.DeleteRequest)
+        io.greptime.v1.Database.DeleteRequestOrBuilder {
       public static final com.google.protobuf.Descriptors.Descriptor
           getDescriptor() {
-        return io.greptime.v1.Database.internal_static_greptime_v1_AffectedRows_descriptor;
+        return io.greptime.v1.Database.internal_static_greptime_v1_DeleteRequest_descriptor;
       }
 
       @java.lang.Override
       protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
           internalGetFieldAccessorTable() {
-        return io.greptime.v1.Database.internal_static_greptime_v1_AffectedRows_fieldAccessorTable
+        return io.greptime.v1.Database.internal_static_greptime_v1_DeleteRequest_fieldAccessorTable
             .ensureFieldAccessorsInitialized(
-                io.greptime.v1.Database.AffectedRows.class, io.greptime.v1.Database.AffectedRows.Builder.class);
+                io.greptime.v1.Database.DeleteRequest.class, io.greptime.v1.Database.DeleteRequest.Builder.class);
       }
 
-      // Construct using io.greptime.v1.Database.AffectedRows.newBuilder()
+      // Construct using io.greptime.v1.Database.DeleteRequest.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
-        value_ = 0;
-
+        bitField0_ = 0;
+        tableName_ = "";
+        regionNumber_ = 0;
+        if (keyColumnsBuilder_ == null) {
+          keyColumns_ = java.util.Collections.emptyList();
+        } else {
+          keyColumns_ = null;
+          keyColumnsBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000004);
+        rowCount_ = 0;
         return this;
       }
 
       @java.lang.Override
       public com.google.protobuf.Descriptors.Descriptor
           getDescriptorForType() {
-        return io.greptime.v1.Database.internal_static_greptime_v1_AffectedRows_descriptor;
+        return io.greptime.v1.Database.internal_static_greptime_v1_DeleteRequest_descriptor;
       }
 
       @java.lang.Override
-      public io.greptime.v1.Database.AffectedRows getDefaultInstanceForType() {
-        return io.greptime.v1.Database.AffectedRows.getDefaultInstance();
+      public io.greptime.v1.Database.DeleteRequest getDefaultInstanceForType() {
+        return io.greptime.v1.Database.DeleteRequest.getDefaultInstance();
       }
 
       @java.lang.Override
-      public io.greptime.v1.Database.AffectedRows build() {
-        io.greptime.v1.Database.AffectedRows result = buildPartial();
+      public io.greptime.v1.Database.DeleteRequest build() {
+        io.greptime.v1.Database.DeleteRequest result = buildPartial();
         if (!result.isInitialized()) {
           throw newUninitializedMessageException(result);
         }
@@ -9806,13 +5244,39 @@ public final class Database {
       }
 
       @java.lang.Override
-      public io.greptime.v1.Database.AffectedRows buildPartial() {
-        io.greptime.v1.Database.AffectedRows result = new io.greptime.v1.Database.AffectedRows(this);
-        result.value_ = value_;
+      public io.greptime.v1.Database.DeleteRequest buildPartial() {
+        io.greptime.v1.Database.DeleteRequest result = new io.greptime.v1.Database.DeleteRequest(this);
+        buildPartialRepeatedFields(result);
+        if (bitField0_ != 0) { buildPartial0(result); }
         onBuilt();
         return result;
       }
 
+      private void buildPartialRepeatedFields(io.greptime.v1.Database.DeleteRequest result) {
+        if (keyColumnsBuilder_ == null) {
+          if (((bitField0_ & 0x00000004) != 0)) {
+            keyColumns_ = java.util.Collections.unmodifiableList(keyColumns_);
+            bitField0_ = (bitField0_ & ~0x00000004);
+          }
+          result.keyColumns_ = keyColumns_;
+        } else {
+          result.keyColumns_ = keyColumnsBuilder_.build();
+        }
+      }
+
+      private void buildPartial0(io.greptime.v1.Database.DeleteRequest result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.tableName_ = tableName_;
+        }
+        if (((from_bitField0_ & 0x00000002) != 0)) {
+          result.regionNumber_ = regionNumber_;
+        }
+        if (((from_bitField0_ & 0x00000008) != 0)) {
+          result.rowCount_ = rowCount_;
+        }
+      }
+
       @java.lang.Override
       public Builder clone() {
         return super.clone();
@@ -9847,20 +5311,54 @@ public final class Database {
       }
       @java.lang.Override
       public Builder mergeFrom(com.google.protobuf.Message other) {
-        if (other instanceof io.greptime.v1.Database.AffectedRows) {
-          return mergeFrom((io.greptime.v1.Database.AffectedRows)other);
+        if (other instanceof io.greptime.v1.Database.DeleteRequest) {
+          return mergeFrom((io.greptime.v1.Database.DeleteRequest)other);
         } else {
           super.mergeFrom(other);
           return this;
         }
       }
 
-      public Builder mergeFrom(io.greptime.v1.Database.AffectedRows other) {
-        if (other == io.greptime.v1.Database.AffectedRows.getDefaultInstance()) return this;
-        if (other.getValue() != 0) {
-          setValue(other.getValue());
+      public Builder mergeFrom(io.greptime.v1.Database.DeleteRequest other) {
+        if (other == io.greptime.v1.Database.DeleteRequest.getDefaultInstance()) return this;
+        if (!other.getTableName().isEmpty()) {
+          tableName_ = other.tableName_;
+          bitField0_ |= 0x00000001;
+          onChanged();
         }
-        this.mergeUnknownFields(other.unknownFields);
+        if (other.getRegionNumber() != 0) {
+          setRegionNumber(other.getRegionNumber());
+        }
+        if (keyColumnsBuilder_ == null) {
+          if (!other.keyColumns_.isEmpty()) {
+            if (keyColumns_.isEmpty()) {
+              keyColumns_ = other.keyColumns_;
+              bitField0_ = (bitField0_ & ~0x00000004);
+            } else {
+              ensureKeyColumnsIsMutable();
+              keyColumns_.addAll(other.keyColumns_);
+            }
+            onChanged();
+          }
+        } else {
+          if (!other.keyColumns_.isEmpty()) {
+            if (keyColumnsBuilder_.isEmpty()) {
+              keyColumnsBuilder_.dispose();
+              keyColumnsBuilder_ = null;
+              keyColumns_ = other.keyColumns_;
+              bitField0_ = (bitField0_ & ~0x00000004);
+              keyColumnsBuilder_ = 
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
+                   getKeyColumnsFieldBuilder() : null;
+            } else {
+              keyColumnsBuilder_.addAllMessages(other.keyColumns_);
+            }
+          }
+        }
+        if (other.getRowCount() != 0) {
+          setRowCount(other.getRowCount());
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -9875,670 +5373,552 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Database.AffectedRows parsedMessage = null;
-        try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
-        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Database.AffectedRows) e.getUnfinishedMessage();
-          throw e.unwrapIOException();
-        } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
         }
-        return this;
-      }
-
-      private int value_ ;
-      /**
-       * uint32 value = 1;
-       * @return The value.
-       */
-      @java.lang.Override
-      public int getValue() {
-        return value_;
-      }
-      /**
-       * uint32 value = 1;
-       * @param value The value to set.
-       * @return This builder for chaining.
-       */
-      public Builder setValue(int value) {
-        
-        value_ = value;
-        onChanged();
-        return this;
-      }
-      /**
-       * uint32 value = 1;
-       * @return This builder for chaining.
-       */
-      public Builder clearValue() {
-        
-        value_ = 0;
-        onChanged();
-        return this;
-      }
-      @java.lang.Override
-      public final Builder setUnknownFields(
-          final com.google.protobuf.UnknownFieldSet unknownFields) {
-        return super.setUnknownFields(unknownFields);
-      }
-
-      @java.lang.Override
-      public final Builder mergeUnknownFields(
-          final com.google.protobuf.UnknownFieldSet unknownFields) {
-        return super.mergeUnknownFields(unknownFields);
-      }
-
-
-      // @@protoc_insertion_point(builder_scope:greptime.v1.AffectedRows)
-    }
-
-    // @@protoc_insertion_point(class_scope:greptime.v1.AffectedRows)
-    private static final io.greptime.v1.Database.AffectedRows DEFAULT_INSTANCE;
-    static {
-      DEFAULT_INSTANCE = new io.greptime.v1.Database.AffectedRows();
-    }
-
-    public static io.greptime.v1.Database.AffectedRows getDefaultInstance() {
-      return DEFAULT_INSTANCE;
-    }
-
-    private static final com.google.protobuf.Parser
-        PARSER = new com.google.protobuf.AbstractParser() {
-      @java.lang.Override
-      public AffectedRows parsePartialFrom(
-          com.google.protobuf.CodedInputStream input,
-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws com.google.protobuf.InvalidProtocolBufferException {
-        return new AffectedRows(input, extensionRegistry);
-      }
-    };
-
-    public static com.google.protobuf.Parser parser() {
-      return PARSER;
-    }
-
-    @java.lang.Override
-    public com.google.protobuf.Parser getParserForType() {
-      return PARSER;
-    }
-
-    @java.lang.Override
-    public io.greptime.v1.Database.AffectedRows getDefaultInstanceForType() {
-      return DEFAULT_INSTANCE;
-    }
-
-  }
-
-  public interface FlightMetadataOrBuilder extends
-      // @@protoc_insertion_point(interface_extends:greptime.v1.FlightMetadata)
-      com.google.protobuf.MessageOrBuilder {
-
-    /**
-     * .greptime.v1.AffectedRows affected_rows = 1;
-     * @return Whether the affectedRows field is set.
-     */
-    boolean hasAffectedRows();
-    /**
-     * .greptime.v1.AffectedRows affected_rows = 1;
-     * @return The affectedRows.
-     */
-    io.greptime.v1.Database.AffectedRows getAffectedRows();
-    /**
-     * .greptime.v1.AffectedRows affected_rows = 1;
-     */
-    io.greptime.v1.Database.AffectedRowsOrBuilder getAffectedRowsOrBuilder();
-  }
-  /**
-   * Protobuf type {@code greptime.v1.FlightMetadata}
-   */
-  public static final class FlightMetadata extends
-      com.google.protobuf.GeneratedMessageV3 implements
-      // @@protoc_insertion_point(message_implements:greptime.v1.FlightMetadata)
-      FlightMetadataOrBuilder {
-  private static final long serialVersionUID = 0L;
-    // Use FlightMetadata.newBuilder() to construct.
-    private FlightMetadata(com.google.protobuf.GeneratedMessageV3.Builder builder) {
-      super(builder);
-    }
-    private FlightMetadata() {
-    }
-
-    @java.lang.Override
-    @SuppressWarnings({"unused"})
-    protected java.lang.Object newInstance(
-        UnusedPrivateParameter unused) {
-      return new FlightMetadata();
-    }
-
-    @java.lang.Override
-    public final com.google.protobuf.UnknownFieldSet
-    getUnknownFields() {
-      return this.unknownFields;
-    }
-    private FlightMetadata(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              io.greptime.v1.Database.AffectedRows.Builder subBuilder = null;
-              if (affectedRows_ != null) {
-                subBuilder = affectedRows_.toBuilder();
-              }
-              affectedRows_ = input.readMessage(io.greptime.v1.Database.AffectedRows.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(affectedRows_);
-                affectedRows_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
                 done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-    public static final com.google.protobuf.Descriptors.Descriptor
-        getDescriptor() {
-      return io.greptime.v1.Database.internal_static_greptime_v1_FlightMetadata_descriptor;
-    }
-
-    @java.lang.Override
-    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-        internalGetFieldAccessorTable() {
-      return io.greptime.v1.Database.internal_static_greptime_v1_FlightMetadata_fieldAccessorTable
-          .ensureFieldAccessorsInitialized(
-              io.greptime.v1.Database.FlightMetadata.class, io.greptime.v1.Database.FlightMetadata.Builder.class);
-    }
-
-    public static final int AFFECTED_ROWS_FIELD_NUMBER = 1;
-    private io.greptime.v1.Database.AffectedRows affectedRows_;
-    /**
-     * .greptime.v1.AffectedRows affected_rows = 1;
-     * @return Whether the affectedRows field is set.
-     */
-    @java.lang.Override
-    public boolean hasAffectedRows() {
-      return affectedRows_ != null;
-    }
-    /**
-     * .greptime.v1.AffectedRows affected_rows = 1;
-     * @return The affectedRows.
-     */
-    @java.lang.Override
-    public io.greptime.v1.Database.AffectedRows getAffectedRows() {
-      return affectedRows_ == null ? io.greptime.v1.Database.AffectedRows.getDefaultInstance() : affectedRows_;
-    }
-    /**
-     * .greptime.v1.AffectedRows affected_rows = 1;
-     */
-    @java.lang.Override
-    public io.greptime.v1.Database.AffectedRowsOrBuilder getAffectedRowsOrBuilder() {
-      return getAffectedRows();
-    }
-
-    private byte memoizedIsInitialized = -1;
-    @java.lang.Override
-    public final boolean isInitialized() {
-      byte isInitialized = memoizedIsInitialized;
-      if (isInitialized == 1) return true;
-      if (isInitialized == 0) return false;
-
-      memoizedIsInitialized = 1;
-      return true;
-    }
-
-    @java.lang.Override
-    public void writeTo(com.google.protobuf.CodedOutputStream output)
-                        throws java.io.IOException {
-      if (affectedRows_ != null) {
-        output.writeMessage(1, getAffectedRows());
-      }
-      unknownFields.writeTo(output);
-    }
-
-    @java.lang.Override
-    public int getSerializedSize() {
-      int size = memoizedSize;
-      if (size != -1) return size;
-
-      size = 0;
-      if (affectedRows_ != null) {
-        size += com.google.protobuf.CodedOutputStream
-          .computeMessageSize(1, getAffectedRows());
-      }
-      size += unknownFields.getSerializedSize();
-      memoizedSize = size;
-      return size;
-    }
-
-    @java.lang.Override
-    public boolean equals(final java.lang.Object obj) {
-      if (obj == this) {
-       return true;
-      }
-      if (!(obj instanceof io.greptime.v1.Database.FlightMetadata)) {
-        return super.equals(obj);
-      }
-      io.greptime.v1.Database.FlightMetadata other = (io.greptime.v1.Database.FlightMetadata) obj;
-
-      if (hasAffectedRows() != other.hasAffectedRows()) return false;
-      if (hasAffectedRows()) {
-        if (!getAffectedRows()
-            .equals(other.getAffectedRows())) return false;
-      }
-      if (!unknownFields.equals(other.unknownFields)) return false;
-      return true;
-    }
-
-    @java.lang.Override
-    public int hashCode() {
-      if (memoizedHashCode != 0) {
-        return memoizedHashCode;
-      }
-      int hash = 41;
-      hash = (19 * hash) + getDescriptor().hashCode();
-      if (hasAffectedRows()) {
-        hash = (37 * hash) + AFFECTED_ROWS_FIELD_NUMBER;
-        hash = (53 * hash) + getAffectedRows().hashCode();
-      }
-      hash = (29 * hash) + unknownFields.hashCode();
-      memoizedHashCode = hash;
-      return hash;
-    }
-
-    public static io.greptime.v1.Database.FlightMetadata parseFrom(
-        java.nio.ByteBuffer data)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      return PARSER.parseFrom(data);
-    }
-    public static io.greptime.v1.Database.FlightMetadata parseFrom(
-        java.nio.ByteBuffer data,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      return PARSER.parseFrom(data, extensionRegistry);
-    }
-    public static io.greptime.v1.Database.FlightMetadata parseFrom(
-        com.google.protobuf.ByteString data)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      return PARSER.parseFrom(data);
-    }
-    public static io.greptime.v1.Database.FlightMetadata parseFrom(
-        com.google.protobuf.ByteString data,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      return PARSER.parseFrom(data, extensionRegistry);
-    }
-    public static io.greptime.v1.Database.FlightMetadata parseFrom(byte[] data)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      return PARSER.parseFrom(data);
-    }
-    public static io.greptime.v1.Database.FlightMetadata parseFrom(
-        byte[] data,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      return PARSER.parseFrom(data, extensionRegistry);
-    }
-    public static io.greptime.v1.Database.FlightMetadata parseFrom(java.io.InputStream input)
-        throws java.io.IOException {
-      return com.google.protobuf.GeneratedMessageV3
-          .parseWithIOException(PARSER, input);
-    }
-    public static io.greptime.v1.Database.FlightMetadata parseFrom(
-        java.io.InputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws java.io.IOException {
-      return com.google.protobuf.GeneratedMessageV3
-          .parseWithIOException(PARSER, input, extensionRegistry);
-    }
-    public static io.greptime.v1.Database.FlightMetadata parseDelimitedFrom(java.io.InputStream input)
-        throws java.io.IOException {
-      return com.google.protobuf.GeneratedMessageV3
-          .parseDelimitedWithIOException(PARSER, input);
-    }
-    public static io.greptime.v1.Database.FlightMetadata parseDelimitedFrom(
-        java.io.InputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws java.io.IOException {
-      return com.google.protobuf.GeneratedMessageV3
-          .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
-    }
-    public static io.greptime.v1.Database.FlightMetadata parseFrom(
-        com.google.protobuf.CodedInputStream input)
-        throws java.io.IOException {
-      return com.google.protobuf.GeneratedMessageV3
-          .parseWithIOException(PARSER, input);
-    }
-    public static io.greptime.v1.Database.FlightMetadata parseFrom(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws java.io.IOException {
-      return com.google.protobuf.GeneratedMessageV3
-          .parseWithIOException(PARSER, input, extensionRegistry);
-    }
-
-    @java.lang.Override
-    public Builder newBuilderForType() { return newBuilder(); }
-    public static Builder newBuilder() {
-      return DEFAULT_INSTANCE.toBuilder();
-    }
-    public static Builder newBuilder(io.greptime.v1.Database.FlightMetadata prototype) {
-      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
-    }
-    @java.lang.Override
-    public Builder toBuilder() {
-      return this == DEFAULT_INSTANCE
-          ? new Builder() : new Builder().mergeFrom(this);
-    }
-
-    @java.lang.Override
-    protected Builder newBuilderForType(
-        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
-      Builder builder = new Builder(parent);
-      return builder;
-    }
-    /**
-     * Protobuf type {@code greptime.v1.FlightMetadata}
-     */
-    public static final class Builder extends
-        com.google.protobuf.GeneratedMessageV3.Builder implements
-        // @@protoc_insertion_point(builder_implements:greptime.v1.FlightMetadata)
-        io.greptime.v1.Database.FlightMetadataOrBuilder {
-      public static final com.google.protobuf.Descriptors.Descriptor
-          getDescriptor() {
-        return io.greptime.v1.Database.internal_static_greptime_v1_FlightMetadata_descriptor;
-      }
-
-      @java.lang.Override
-      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-          internalGetFieldAccessorTable() {
-        return io.greptime.v1.Database.internal_static_greptime_v1_FlightMetadata_fieldAccessorTable
-            .ensureFieldAccessorsInitialized(
-                io.greptime.v1.Database.FlightMetadata.class, io.greptime.v1.Database.FlightMetadata.Builder.class);
-      }
-
-      // Construct using io.greptime.v1.Database.FlightMetadata.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
-
-      private Builder(
-          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
-        super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-        }
-      }
-      @java.lang.Override
-      public Builder clear() {
-        super.clear();
-        if (affectedRowsBuilder_ == null) {
-          affectedRows_ = null;
-        } else {
-          affectedRows_ = null;
-          affectedRowsBuilder_ = null;
-        }
+                break;
+              case 10: {
+                tableName_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+              case 16: {
+                regionNumber_ = input.readUInt32();
+                bitField0_ |= 0x00000002;
+                break;
+              } // case 16
+              case 26: {
+                io.greptime.v1.Columns.Column m =
+                    input.readMessage(
+                        io.greptime.v1.Columns.Column.parser(),
+                        extensionRegistry);
+                if (keyColumnsBuilder_ == null) {
+                  ensureKeyColumnsIsMutable();
+                  keyColumns_.add(m);
+                } else {
+                  keyColumnsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 26
+              case 32: {
+                rowCount_ = input.readUInt32();
+                bitField0_ |= 0x00000008;
+                break;
+              } // case 32
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.unwrapIOException();
+        } finally {
+          onChanged();
+        } // finally
         return this;
       }
+      private int bitField0_;
 
-      @java.lang.Override
-      public com.google.protobuf.Descriptors.Descriptor
-          getDescriptorForType() {
-        return io.greptime.v1.Database.internal_static_greptime_v1_FlightMetadata_descriptor;
-      }
-
-      @java.lang.Override
-      public io.greptime.v1.Database.FlightMetadata getDefaultInstanceForType() {
-        return io.greptime.v1.Database.FlightMetadata.getDefaultInstance();
-      }
-
-      @java.lang.Override
-      public io.greptime.v1.Database.FlightMetadata build() {
-        io.greptime.v1.Database.FlightMetadata result = buildPartial();
-        if (!result.isInitialized()) {
-          throw newUninitializedMessageException(result);
-        }
-        return result;
-      }
-
-      @java.lang.Override
-      public io.greptime.v1.Database.FlightMetadata buildPartial() {
-        io.greptime.v1.Database.FlightMetadata result = new io.greptime.v1.Database.FlightMetadata(this);
-        if (affectedRowsBuilder_ == null) {
-          result.affectedRows_ = affectedRows_;
+      private java.lang.Object tableName_ = "";
+      /**
+       * 
+       * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+       * 

+       *
+       * string table_name = 1;
+       * @return The tableName.
+       */
+      public java.lang.String getTableName() {
+        java.lang.Object ref = tableName_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs =
+              (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          tableName_ = s;
+          return s;
         } else {
-          result.affectedRows_ = affectedRowsBuilder_.build();
+          return (java.lang.String) ref;
         }
-        onBuilt();
-        return result;
       }
-
-      @java.lang.Override
-      public Builder clone() {
-        return super.clone();
-      }
-      @java.lang.Override
-      public Builder setField(
-          com.google.protobuf.Descriptors.FieldDescriptor field,
-          java.lang.Object value) {
-        return super.setField(field, value);
-      }
-      @java.lang.Override
-      public Builder clearField(
-          com.google.protobuf.Descriptors.FieldDescriptor field) {
-        return super.clearField(field);
-      }
-      @java.lang.Override
-      public Builder clearOneof(
-          com.google.protobuf.Descriptors.OneofDescriptor oneof) {
-        return super.clearOneof(oneof);
-      }
-      @java.lang.Override
-      public Builder setRepeatedField(
-          com.google.protobuf.Descriptors.FieldDescriptor field,
-          int index, java.lang.Object value) {
-        return super.setRepeatedField(field, index, value);
-      }
-      @java.lang.Override
-      public Builder addRepeatedField(
-          com.google.protobuf.Descriptors.FieldDescriptor field,
-          java.lang.Object value) {
-        return super.addRepeatedField(field, value);
-      }
-      @java.lang.Override
-      public Builder mergeFrom(com.google.protobuf.Message other) {
-        if (other instanceof io.greptime.v1.Database.FlightMetadata) {
-          return mergeFrom((io.greptime.v1.Database.FlightMetadata)other);
+      /**
+       * 
+       * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+       * 

+       *
+       * string table_name = 1;
+       * @return The bytes for tableName.
+       */
+      public com.google.protobuf.ByteString
+          getTableNameBytes() {
+        java.lang.Object ref = tableName_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b = 
+              com.google.protobuf.ByteString.copyFromUtf8(
+                  (java.lang.String) ref);
+          tableName_ = b;
+          return b;
         } else {
-          super.mergeFrom(other);
-          return this;
+          return (com.google.protobuf.ByteString) ref;
         }
       }
-
-      public Builder mergeFrom(io.greptime.v1.Database.FlightMetadata other) {
-        if (other == io.greptime.v1.Database.FlightMetadata.getDefaultInstance()) return this;
-        if (other.hasAffectedRows()) {
-          mergeAffectedRows(other.getAffectedRows());
-        }
-        this.mergeUnknownFields(other.unknownFields);
+      /**
+       * 
+       * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+       * 

+       *
+       * string table_name = 1;
+       * @param value The tableName to set.
+       * @return This builder for chaining.
+       */
+      public Builder setTableName(
+          java.lang.String value) {
+        if (value == null) { throw new NullPointerException(); }
+        tableName_ = value;
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       * 
+       * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+       * 

+       *
+       * string table_name = 1;
+       * @return This builder for chaining.
+       */
+      public Builder clearTableName() {
+        tableName_ = getDefaultInstance().getTableName();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+        return this;
+      }
+      /**
+       * 
+       * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+       * 

+       *
+       * string table_name = 1;
+       * @param value The bytes for tableName to set.
+       * @return This builder for chaining.
+       */
+      public Builder setTableNameBytes(
+          com.google.protobuf.ByteString value) {
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
+        tableName_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
 
+      private int regionNumber_ ;
+      /**
+       * 
+       * The region number of current delete request.
+       * 

+       *
+       * uint32 region_number = 2;
+       * @return The regionNumber.
+       */
       @java.lang.Override
-      public final boolean isInitialized() {
-        return true;
+      public int getRegionNumber() {
+        return regionNumber_;
       }
-
-      @java.lang.Override
-      public Builder mergeFrom(
-          com.google.protobuf.CodedInputStream input,
-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws java.io.IOException {
-        io.greptime.v1.Database.FlightMetadata parsedMessage = null;
-        try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
-        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Database.FlightMetadata) e.getUnfinishedMessage();
-          throw e.unwrapIOException();
-        } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+      /**
+       * 
+       * The region number of current delete request.
+       * 

+       *
+       * uint32 region_number = 2;
+       * @param value The regionNumber to set.
+       * @return This builder for chaining.
+       */
+      public Builder setRegionNumber(int value) {
+        
+        regionNumber_ = value;
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+      /**
+       * 
+       * The region number of current delete request.
+       * 

+       *
+       * uint32 region_number = 2;
+       * @return This builder for chaining.
+       */
+      public Builder clearRegionNumber() {
+        bitField0_ = (bitField0_ & ~0x00000002);
+        regionNumber_ = 0;
+        onChanged();
         return this;
       }
 
-      private io.greptime.v1.Database.AffectedRows affectedRows_;
-      private com.google.protobuf.SingleFieldBuilderV3<
-          io.greptime.v1.Database.AffectedRows, io.greptime.v1.Database.AffectedRows.Builder, io.greptime.v1.Database.AffectedRowsOrBuilder> affectedRowsBuilder_;
-      /**
-       * .greptime.v1.AffectedRows affected_rows = 1;
-       * @return Whether the affectedRows field is set.
-       */
-      public boolean hasAffectedRows() {
-        return affectedRowsBuilder_ != null || affectedRows_ != null;
+      private java.util.List keyColumns_ =
+        java.util.Collections.emptyList();
+      private void ensureKeyColumnsIsMutable() {
+        if (!((bitField0_ & 0x00000004) != 0)) {
+          keyColumns_ = new java.util.ArrayList(keyColumns_);
+          bitField0_ |= 0x00000004;
+         }
       }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+          io.greptime.v1.Columns.Column, io.greptime.v1.Columns.Column.Builder, io.greptime.v1.Columns.ColumnOrBuilder> keyColumnsBuilder_;
+
       /**
-       * .greptime.v1.AffectedRows affected_rows = 1;
-       * @return The affectedRows.
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
        */
-      public io.greptime.v1.Database.AffectedRows getAffectedRows() {
-        if (affectedRowsBuilder_ == null) {
-          return affectedRows_ == null ? io.greptime.v1.Database.AffectedRows.getDefaultInstance() : affectedRows_;
+      public java.util.List getKeyColumnsList() {
+        if (keyColumnsBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(keyColumns_);
         } else {
-          return affectedRowsBuilder_.getMessage();
+          return keyColumnsBuilder_.getMessageList();
         }
       }
       /**
-       * .greptime.v1.AffectedRows affected_rows = 1;
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
        */
-      public Builder setAffectedRows(io.greptime.v1.Database.AffectedRows value) {
-        if (affectedRowsBuilder_ == null) {
+      public int getKeyColumnsCount() {
+        if (keyColumnsBuilder_ == null) {
+          return keyColumns_.size();
+        } else {
+          return keyColumnsBuilder_.getCount();
+        }
+      }
+      /**
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
+       */
+      public io.greptime.v1.Columns.Column getKeyColumns(int index) {
+        if (keyColumnsBuilder_ == null) {
+          return keyColumns_.get(index);
+        } else {
+          return keyColumnsBuilder_.getMessage(index);
+        }
+      }
+      /**
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
+       */
+      public Builder setKeyColumns(
+          int index, io.greptime.v1.Columns.Column value) {
+        if (keyColumnsBuilder_ == null) {
           if (value == null) {
             throw new NullPointerException();
           }
-          affectedRows_ = value;
+          ensureKeyColumnsIsMutable();
+          keyColumns_.set(index, value);
           onChanged();
         } else {
-          affectedRowsBuilder_.setMessage(value);
+          keyColumnsBuilder_.setMessage(index, value);
         }
-
         return this;
       }
       /**
-       * .greptime.v1.AffectedRows affected_rows = 1;
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
        */
-      public Builder setAffectedRows(
-          io.greptime.v1.Database.AffectedRows.Builder builderForValue) {
-        if (affectedRowsBuilder_ == null) {
-          affectedRows_ = builderForValue.build();
+      public Builder setKeyColumns(
+          int index, io.greptime.v1.Columns.Column.Builder builderForValue) {
+        if (keyColumnsBuilder_ == null) {
+          ensureKeyColumnsIsMutable();
+          keyColumns_.set(index, builderForValue.build());
           onChanged();
         } else {
-          affectedRowsBuilder_.setMessage(builderForValue.build());
+          keyColumnsBuilder_.setMessage(index, builderForValue.build());
         }
-
         return this;
       }
       /**
-       * .greptime.v1.AffectedRows affected_rows = 1;
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
        */
-      public Builder mergeAffectedRows(io.greptime.v1.Database.AffectedRows value) {
-        if (affectedRowsBuilder_ == null) {
-          if (affectedRows_ != null) {
-            affectedRows_ =
-              io.greptime.v1.Database.AffectedRows.newBuilder(affectedRows_).mergeFrom(value).buildPartial();
-          } else {
-            affectedRows_ = value;
+      public Builder addKeyColumns(io.greptime.v1.Columns.Column value) {
+        if (keyColumnsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
           }
+          ensureKeyColumnsIsMutable();
+          keyColumns_.add(value);
           onChanged();
         } else {
-          affectedRowsBuilder_.mergeFrom(value);
+          keyColumnsBuilder_.addMessage(value);
         }
-
         return this;
       }
       /**
-       * .greptime.v1.AffectedRows affected_rows = 1;
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
        */
-      public Builder clearAffectedRows() {
-        if (affectedRowsBuilder_ == null) {
-          affectedRows_ = null;
+      public Builder addKeyColumns(
+          int index, io.greptime.v1.Columns.Column value) {
+        if (keyColumnsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureKeyColumnsIsMutable();
+          keyColumns_.add(index, value);
           onChanged();
         } else {
-          affectedRows_ = null;
-          affectedRowsBuilder_ = null;
+          keyColumnsBuilder_.addMessage(index, value);
         }
-
         return this;
       }
       /**
-       * .greptime.v1.AffectedRows affected_rows = 1;
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
        */
-      public io.greptime.v1.Database.AffectedRows.Builder getAffectedRowsBuilder() {
-        
-        onChanged();
-        return getAffectedRowsFieldBuilder().getBuilder();
+      public Builder addKeyColumns(
+          io.greptime.v1.Columns.Column.Builder builderForValue) {
+        if (keyColumnsBuilder_ == null) {
+          ensureKeyColumnsIsMutable();
+          keyColumns_.add(builderForValue.build());
+          onChanged();
+        } else {
+          keyColumnsBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
       }
       /**
-       * .greptime.v1.AffectedRows affected_rows = 1;
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
        */
-      public io.greptime.v1.Database.AffectedRowsOrBuilder getAffectedRowsOrBuilder() {
-        if (affectedRowsBuilder_ != null) {
-          return affectedRowsBuilder_.getMessageOrBuilder();
+      public Builder addKeyColumns(
+          int index, io.greptime.v1.Columns.Column.Builder builderForValue) {
+        if (keyColumnsBuilder_ == null) {
+          ensureKeyColumnsIsMutable();
+          keyColumns_.add(index, builderForValue.build());
+          onChanged();
         } else {
-          return affectedRows_ == null ?
-              io.greptime.v1.Database.AffectedRows.getDefaultInstance() : affectedRows_;
+          keyColumnsBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
+       */
+      public Builder addAllKeyColumns(
+          java.lang.Iterable values) {
+        if (keyColumnsBuilder_ == null) {
+          ensureKeyColumnsIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(
+              values, keyColumns_);
+          onChanged();
+        } else {
+          keyColumnsBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
+       */
+      public Builder clearKeyColumns() {
+        if (keyColumnsBuilder_ == null) {
+          keyColumns_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000004);
+          onChanged();
+        } else {
+          keyColumnsBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
+       */
+      public Builder removeKeyColumns(int index) {
+        if (keyColumnsBuilder_ == null) {
+          ensureKeyColumnsIsMutable();
+          keyColumns_.remove(index);
+          onChanged();
+        } else {
+          keyColumnsBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
+       */
+      public io.greptime.v1.Columns.Column.Builder getKeyColumnsBuilder(
+          int index) {
+        return getKeyColumnsFieldBuilder().getBuilder(index);
+      }
+      /**
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
+       */
+      public io.greptime.v1.Columns.ColumnOrBuilder getKeyColumnsOrBuilder(
+          int index) {
+        if (keyColumnsBuilder_ == null) {
+          return keyColumns_.get(index);  } else {
+          return keyColumnsBuilder_.getMessageOrBuilder(index);
         }
       }
       /**
-       * .greptime.v1.AffectedRows affected_rows = 1;
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
        */
-      private com.google.protobuf.SingleFieldBuilderV3<
-          io.greptime.v1.Database.AffectedRows, io.greptime.v1.Database.AffectedRows.Builder, io.greptime.v1.Database.AffectedRowsOrBuilder> 
-          getAffectedRowsFieldBuilder() {
-        if (affectedRowsBuilder_ == null) {
-          affectedRowsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
-              io.greptime.v1.Database.AffectedRows, io.greptime.v1.Database.AffectedRows.Builder, io.greptime.v1.Database.AffectedRowsOrBuilder>(
-                  getAffectedRows(),
+      public java.util.List 
+           getKeyColumnsOrBuilderList() {
+        if (keyColumnsBuilder_ != null) {
+          return keyColumnsBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(keyColumns_);
+        }
+      }
+      /**
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
+       */
+      public io.greptime.v1.Columns.Column.Builder addKeyColumnsBuilder() {
+        return getKeyColumnsFieldBuilder().addBuilder(
+            io.greptime.v1.Columns.Column.getDefaultInstance());
+      }
+      /**
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
+       */
+      public io.greptime.v1.Columns.Column.Builder addKeyColumnsBuilder(
+          int index) {
+        return getKeyColumnsFieldBuilder().addBuilder(
+            index, io.greptime.v1.Columns.Column.getDefaultInstance());
+      }
+      /**
+       * 
+       * The data to delete, indexed by key columns.
+       * 

+       *
+       * repeated .greptime.v1.Column key_columns = 3;
+       */
+      public java.util.List 
+           getKeyColumnsBuilderList() {
+        return getKeyColumnsFieldBuilder().getBuilderList();
+      }
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+          io.greptime.v1.Columns.Column, io.greptime.v1.Columns.Column.Builder, io.greptime.v1.Columns.ColumnOrBuilder> 
+          getKeyColumnsFieldBuilder() {
+        if (keyColumnsBuilder_ == null) {
+          keyColumnsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
+              io.greptime.v1.Columns.Column, io.greptime.v1.Columns.Column.Builder, io.greptime.v1.Columns.ColumnOrBuilder>(
+                  keyColumns_,
+                  ((bitField0_ & 0x00000004) != 0),
                   getParentForChildren(),
                   isClean());
-          affectedRows_ = null;
+          keyColumns_ = null;
         }
-        return affectedRowsBuilder_;
+        return keyColumnsBuilder_;
+      }
+
+      private int rowCount_ ;
+      /**
+       * 
+       * The row count of all columns above.
+       * 

+       *
+       * uint32 row_count = 4;
+       * @return The rowCount.
+       */
+      @java.lang.Override
+      public int getRowCount() {
+        return rowCount_;
+      }
+      /**
+       * 
+       * The row count of all columns above.
+       * 

+       *
+       * uint32 row_count = 4;
+       * @param value The rowCount to set.
+       * @return This builder for chaining.
+       */
+      public Builder setRowCount(int value) {
+        
+        rowCount_ = value;
+        bitField0_ |= 0x00000008;
+        onChanged();
+        return this;
+      }
+      /**
+       * 
+       * The row count of all columns above.
+       * 

+       *
+       * uint32 row_count = 4;
+       * @return This builder for chaining.
+       */
+      public Builder clearRowCount() {
+        bitField0_ = (bitField0_ & ~0x00000008);
+        rowCount_ = 0;
+        onChanged();
+        return this;
       }
       @java.lang.Override
       public final Builder setUnknownFields(
@@ -10553,76 +5933,62 @@ public final class Database {
       }
 
 
-      // @@protoc_insertion_point(builder_scope:greptime.v1.FlightMetadata)
+      // @@protoc_insertion_point(builder_scope:greptime.v1.DeleteRequest)
     }
 
-    // @@protoc_insertion_point(class_scope:greptime.v1.FlightMetadata)
-    private static final io.greptime.v1.Database.FlightMetadata DEFAULT_INSTANCE;
+    // @@protoc_insertion_point(class_scope:greptime.v1.DeleteRequest)
+    private static final io.greptime.v1.Database.DeleteRequest DEFAULT_INSTANCE;
     static {
-      DEFAULT_INSTANCE = new io.greptime.v1.Database.FlightMetadata();
+      DEFAULT_INSTANCE = new io.greptime.v1.Database.DeleteRequest();
     }
 
-    public static io.greptime.v1.Database.FlightMetadata getDefaultInstance() {
+    public static io.greptime.v1.Database.DeleteRequest getDefaultInstance() {
       return DEFAULT_INSTANCE;
     }
 
-    private static final com.google.protobuf.Parser
-        PARSER = new com.google.protobuf.AbstractParser() {
+    private static final com.google.protobuf.Parser
+        PARSER = new com.google.protobuf.AbstractParser() {
       @java.lang.Override
-      public FlightMetadata parsePartialFrom(
+      public DeleteRequest parsePartialFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new FlightMetadata(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
-    public static com.google.protobuf.Parser parser() {
+    public static com.google.protobuf.Parser parser() {
       return PARSER;
     }
 
     @java.lang.Override
-    public com.google.protobuf.Parser getParserForType() {
+    public com.google.protobuf.Parser getParserForType() {
       return PARSER;
     }
 
     @java.lang.Override
-    public io.greptime.v1.Database.FlightMetadata getDefaultInstanceForType() {
+    public io.greptime.v1.Database.DeleteRequest getDefaultInstanceForType() {
       return DEFAULT_INSTANCE;
     }
 
   }
 
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_RequestHeader_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_RequestHeader_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_AuthHeader_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_AuthHeader_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_Basic_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_Basic_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_Token_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_Token_fieldAccessorTable;
   private static final com.google.protobuf.Descriptors.Descriptor
     internal_static_greptime_v1_GreptimeRequest_descriptor;
   private static final 
     com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_greptime_v1_GreptimeRequest_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_ResponseHeader_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_ResponseHeader_fieldAccessorTable;
   private static final com.google.protobuf.Descriptors.Descriptor
     internal_static_greptime_v1_GreptimeResponse_descriptor;
   private static final 
@@ -10633,26 +5999,16 @@ public final class Database {
   private static final 
     com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_greptime_v1_QueryRequest_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_PromRangeQuery_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_PromRangeQuery_fieldAccessorTable;
   private static final com.google.protobuf.Descriptors.Descriptor
     internal_static_greptime_v1_InsertRequest_descriptor;
   private static final 
     com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_greptime_v1_InsertRequest_fieldAccessorTable;
   private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_AffectedRows_descriptor;
+    internal_static_greptime_v1_DeleteRequest_descriptor;
   private static final 
     com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_AffectedRows_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_FlightMetadata_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_FlightMetadata_fieldAccessorTable;
+      internal_static_greptime_v1_DeleteRequest_fieldAccessorTable;
 
   public static com.google.protobuf.Descriptors.FileDescriptor
       getDescriptor() {
@@ -10664,121 +6020,76 @@ public final class Database {
     java.lang.String[] descriptorData = {
       "\n\032greptime/v1/database.proto\022\013greptime.v" +
       "1\032\025greptime/v1/ddl.proto\032\030greptime/v1/co" +
-      "lumn.proto\"p\n\rRequestHeader\022\017\n\007catalog\030\001" +
-      " \001(\t\022\016\n\006schema\030\002 \001(\t\022.\n\rauthorization\030\003 " +
-      "\001(\0132\027.greptime.v1.AuthHeader\022\016\n\006dbname\030\004" +
-      " \001(\t\"e\n\nAuthHeader\022#\n\005basic\030\001 \001(\0132\022.grep" +
-      "time.v1.BasicH\000\022#\n\005token\030\002 \001(\0132\022.greptim" +
-      "e.v1.TokenH\000B\r\n\013auth_scheme\"+\n\005Basic\022\020\n\010" +
-      "username\030\001 \001(\t\022\020\n\010password\030\002 \001(\t\"\026\n\005Toke" +
-      "n\022\r\n\005token\030\001 \001(\t\"\312\001\n\017GreptimeRequest\022*\n\006" +
-      "header\030\001 \001(\0132\032.greptime.v1.RequestHeader" +
-      "\022,\n\006insert\030\002 \001(\0132\032.greptime.v1.InsertReq" +
-      "uestH\000\022*\n\005query\030\003 \001(\0132\031.greptime.v1.Quer" +
-      "yRequestH\000\022&\n\003ddl\030\004 \001(\0132\027.greptime.v1.Dd" +
-      "lRequestH\000B\t\n\007request\"\020\n\016ResponseHeader\"" +
-      "\177\n\020GreptimeResponse\022+\n\006header\030\001 \001(\0132\033.gr" +
-      "eptime.v1.ResponseHeader\0222\n\raffected_row" +
-      "s\030\002 \001(\0132\031.greptime.v1.AffectedRowsH\000B\n\n\010" +
-      "response\"w\n\014QueryRequest\022\r\n\003sql\030\001 \001(\tH\000\022" +
-      "\026\n\014logical_plan\030\002 \001(\014H\000\0227\n\020prom_range_qu" +
-      "ery\030\003 \001(\0132\033.greptime.v1.PromRangeQueryH\000" +
-      "B\007\n\005query\"I\n\016PromRangeQuery\022\r\n\005query\030\001 \001" +
-      "(\t\022\r\n\005start\030\002 \001(\t\022\013\n\003end\030\003 \001(\t\022\014\n\004step\030\004" +
-      " \001(\t\"s\n\rInsertRequest\022\022\n\ntable_name\030\001 \001(" +
-      "\t\022$\n\007columns\030\003 \003(\0132\023.greptime.v1.Column\022" +
-      "\021\n\trow_count\030\004 \001(\r\022\025\n\rregion_number\030\005 \001(" +
-      "\r\"\035\n\014AffectedRows\022\r\n\005value\030\001 \001(\r\"B\n\016Flig" +
-      "htMetadata\0220\n\raffected_rows\030\001 \001(\0132\031.grep" +
-      "time.v1.AffectedRows2\252\001\n\020GreptimeDatabas" +
-      "e\022E\n\006Handle\022\034.greptime.v1.GreptimeReques" +
-      "t\032\035.greptime.v1.GreptimeResponse\022O\n\016Hand" +
-      "leRequests\022\034.greptime.v1.GreptimeRequest" +
-      "\032\035.greptime.v1.GreptimeResponse(\001BQ\n\016io." +
-      "greptime.v1B\010DatabaseZ5github.com/Grepti" +
-      "meTeam/greptime-proto/go/greptime/v1b\006pr" +
-      "oto3"
+      "lumn.proto\032\026greptime/v1/prom.proto\032\030grep" +
+      "time/v1/common.proto\"\370\001\n\017GreptimeRequest" +
+      "\022*\n\006header\030\001 \001(\0132\032.greptime.v1.RequestHe" +
+      "ader\022,\n\006insert\030\002 \001(\0132\032.greptime.v1.Inser" +
+      "tRequestH\000\022*\n\005query\030\003 \001(\0132\031.greptime.v1." +
+      "QueryRequestH\000\022&\n\003ddl\030\004 \001(\0132\027.greptime.v" +
+      "1.DdlRequestH\000\022,\n\006delete\030\005 \001(\0132\032.greptim" +
+      "e.v1.DeleteRequestH\000B\t\n\007request\"\177\n\020Grept" +
+      "imeResponse\022+\n\006header\030\001 \001(\0132\033.greptime.v" +
+      "1.ResponseHeader\0222\n\raffected_rows\030\002 \001(\0132" +
+      "\031.greptime.v1.AffectedRowsH\000B\n\n\010response" +
+      "\"w\n\014QueryRequest\022\r\n\003sql\030\001 \001(\tH\000\022\026\n\014logic" +
+      "al_plan\030\002 \001(\014H\000\0227\n\020prom_range_query\030\003 \001(" +
+      "\0132\033.greptime.v1.PromRangeQueryH\000B\007\n\005quer" +
+      "y\"s\n\rInsertRequest\022\022\n\ntable_name\030\001 \001(\t\022$" +
+      "\n\007columns\030\003 \003(\0132\023.greptime.v1.Column\022\021\n\t" +
+      "row_count\030\004 \001(\r\022\025\n\rregion_number\030\005 \001(\r\"w" +
+      "\n\rDeleteRequest\022\022\n\ntable_name\030\001 \001(\t\022\025\n\rr" +
+      "egion_number\030\002 \001(\r\022(\n\013key_columns\030\003 \003(\0132" +
+      "\023.greptime.v1.Column\022\021\n\trow_count\030\004 \001(\r2" +
+      "\252\001\n\020GreptimeDatabase\022E\n\006Handle\022\034.greptim" +
+      "e.v1.GreptimeRequest\032\035.greptime.v1.Grept" +
+      "imeResponse\022O\n\016HandleRequests\022\034.greptime" +
+      ".v1.GreptimeRequest\032\035.greptime.v1.Grepti" +
+      "meResponse(\001BQ\n\016io.greptime.v1B\010Database" +
+      "Z5github.com/GreptimeTeam/greptime-proto" +
+      "/go/greptime/v1b\006proto3"
     };
     descriptor = com.google.protobuf.Descriptors.FileDescriptor
       .internalBuildGeneratedFileFrom(descriptorData,
         new com.google.protobuf.Descriptors.FileDescriptor[] {
           io.greptime.v1.Ddl.getDescriptor(),
           io.greptime.v1.Columns.getDescriptor(),
+          io.greptime.v1.Prometheus.getDescriptor(),
+          io.greptime.v1.Common.getDescriptor(),
         });
-    internal_static_greptime_v1_RequestHeader_descriptor =
-      getDescriptor().getMessageTypes().get(0);
-    internal_static_greptime_v1_RequestHeader_fieldAccessorTable = new
-      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
-        internal_static_greptime_v1_RequestHeader_descriptor,
-        new java.lang.String[] { "Catalog", "Schema", "Authorization", "Dbname", });
-    internal_static_greptime_v1_AuthHeader_descriptor =
-      getDescriptor().getMessageTypes().get(1);
-    internal_static_greptime_v1_AuthHeader_fieldAccessorTable = new
-      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
-        internal_static_greptime_v1_AuthHeader_descriptor,
-        new java.lang.String[] { "Basic", "Token", "AuthScheme", });
-    internal_static_greptime_v1_Basic_descriptor =
-      getDescriptor().getMessageTypes().get(2);
-    internal_static_greptime_v1_Basic_fieldAccessorTable = new
-      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
-        internal_static_greptime_v1_Basic_descriptor,
-        new java.lang.String[] { "Username", "Password", });
-    internal_static_greptime_v1_Token_descriptor =
-      getDescriptor().getMessageTypes().get(3);
-    internal_static_greptime_v1_Token_fieldAccessorTable = new
-      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
-        internal_static_greptime_v1_Token_descriptor,
-        new java.lang.String[] { "Token", });
     internal_static_greptime_v1_GreptimeRequest_descriptor =
-      getDescriptor().getMessageTypes().get(4);
+      getDescriptor().getMessageTypes().get(0);
     internal_static_greptime_v1_GreptimeRequest_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
         internal_static_greptime_v1_GreptimeRequest_descriptor,
-        new java.lang.String[] { "Header", "Insert", "Query", "Ddl", "Request", });
-    internal_static_greptime_v1_ResponseHeader_descriptor =
-      getDescriptor().getMessageTypes().get(5);
-    internal_static_greptime_v1_ResponseHeader_fieldAccessorTable = new
-      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
-        internal_static_greptime_v1_ResponseHeader_descriptor,
-        new java.lang.String[] { });
+        new java.lang.String[] { "Header", "Insert", "Query", "Ddl", "Delete", "Request", });
     internal_static_greptime_v1_GreptimeResponse_descriptor =
-      getDescriptor().getMessageTypes().get(6);
+      getDescriptor().getMessageTypes().get(1);
     internal_static_greptime_v1_GreptimeResponse_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
         internal_static_greptime_v1_GreptimeResponse_descriptor,
         new java.lang.String[] { "Header", "AffectedRows", "Response", });
     internal_static_greptime_v1_QueryRequest_descriptor =
-      getDescriptor().getMessageTypes().get(7);
+      getDescriptor().getMessageTypes().get(2);
     internal_static_greptime_v1_QueryRequest_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
         internal_static_greptime_v1_QueryRequest_descriptor,
         new java.lang.String[] { "Sql", "LogicalPlan", "PromRangeQuery", "Query", });
-    internal_static_greptime_v1_PromRangeQuery_descriptor =
-      getDescriptor().getMessageTypes().get(8);
-    internal_static_greptime_v1_PromRangeQuery_fieldAccessorTable = new
-      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
-        internal_static_greptime_v1_PromRangeQuery_descriptor,
-        new java.lang.String[] { "Query", "Start", "End", "Step", });
     internal_static_greptime_v1_InsertRequest_descriptor =
-      getDescriptor().getMessageTypes().get(9);
+      getDescriptor().getMessageTypes().get(3);
     internal_static_greptime_v1_InsertRequest_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
         internal_static_greptime_v1_InsertRequest_descriptor,
         new java.lang.String[] { "TableName", "Columns", "RowCount", "RegionNumber", });
-    internal_static_greptime_v1_AffectedRows_descriptor =
-      getDescriptor().getMessageTypes().get(10);
-    internal_static_greptime_v1_AffectedRows_fieldAccessorTable = new
+    internal_static_greptime_v1_DeleteRequest_descriptor =
+      getDescriptor().getMessageTypes().get(4);
+    internal_static_greptime_v1_DeleteRequest_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
-        internal_static_greptime_v1_AffectedRows_descriptor,
-        new java.lang.String[] { "Value", });
-    internal_static_greptime_v1_FlightMetadata_descriptor =
-      getDescriptor().getMessageTypes().get(11);
-    internal_static_greptime_v1_FlightMetadata_fieldAccessorTable = new
-      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
-        internal_static_greptime_v1_FlightMetadata_descriptor,
-        new java.lang.String[] { "AffectedRows", });
+        internal_static_greptime_v1_DeleteRequest_descriptor,
+        new java.lang.String[] { "TableName", "RegionNumber", "KeyColumns", "RowCount", });
     io.greptime.v1.Ddl.getDescriptor();
     io.greptime.v1.Columns.getDescriptor();
+    io.greptime.v1.Prometheus.getDescriptor();
+    io.greptime.v1.Common.getDescriptor();
   }
 
   // @@protoc_insertion_point(outer_class_scope)
diff --git a/java/src/main/java/io/greptime/v1/Ddl.java b/java/src/main/java/io/greptime/v1/Ddl.java
index 0a6d39e..ee8e6ab 100644
--- a/java/src/main/java/io/greptime/v1/Ddl.java
+++ b/java/src/main/java/io/greptime/v1/Ddl.java
@@ -128,113 +128,6 @@ public final class Ddl {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private DdlRequest(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              io.greptime.v1.Ddl.CreateDatabaseExpr.Builder subBuilder = null;
-              if (exprCase_ == 1) {
-                subBuilder = ((io.greptime.v1.Ddl.CreateDatabaseExpr) expr_).toBuilder();
-              }
-              expr_ =
-                  input.readMessage(io.greptime.v1.Ddl.CreateDatabaseExpr.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((io.greptime.v1.Ddl.CreateDatabaseExpr) expr_);
-                expr_ = subBuilder.buildPartial();
-              }
-              exprCase_ = 1;
-              break;
-            }
-            case 18: {
-              io.greptime.v1.Ddl.CreateTableExpr.Builder subBuilder = null;
-              if (exprCase_ == 2) {
-                subBuilder = ((io.greptime.v1.Ddl.CreateTableExpr) expr_).toBuilder();
-              }
-              expr_ =
-                  input.readMessage(io.greptime.v1.Ddl.CreateTableExpr.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((io.greptime.v1.Ddl.CreateTableExpr) expr_);
-                expr_ = subBuilder.buildPartial();
-              }
-              exprCase_ = 2;
-              break;
-            }
-            case 26: {
-              io.greptime.v1.Ddl.AlterExpr.Builder subBuilder = null;
-              if (exprCase_ == 3) {
-                subBuilder = ((io.greptime.v1.Ddl.AlterExpr) expr_).toBuilder();
-              }
-              expr_ =
-                  input.readMessage(io.greptime.v1.Ddl.AlterExpr.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((io.greptime.v1.Ddl.AlterExpr) expr_);
-                expr_ = subBuilder.buildPartial();
-              }
-              exprCase_ = 3;
-              break;
-            }
-            case 34: {
-              io.greptime.v1.Ddl.DropTableExpr.Builder subBuilder = null;
-              if (exprCase_ == 4) {
-                subBuilder = ((io.greptime.v1.Ddl.DropTableExpr) expr_).toBuilder();
-              }
-              expr_ =
-                  input.readMessage(io.greptime.v1.Ddl.DropTableExpr.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((io.greptime.v1.Ddl.DropTableExpr) expr_);
-                expr_ = subBuilder.buildPartial();
-              }
-              exprCase_ = 4;
-              break;
-            }
-            case 42: {
-              io.greptime.v1.Ddl.FlushTableExpr.Builder subBuilder = null;
-              if (exprCase_ == 5) {
-                subBuilder = ((io.greptime.v1.Ddl.FlushTableExpr) expr_).toBuilder();
-              }
-              expr_ =
-                  input.readMessage(io.greptime.v1.Ddl.FlushTableExpr.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((io.greptime.v1.Ddl.FlushTableExpr) expr_);
-                expr_ = subBuilder.buildPartial();
-              }
-              exprCase_ = 5;
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Ddl.internal_static_greptime_v1_DdlRequest_descriptor;
@@ -479,7 +372,7 @@ public final class Ddl {
       if (exprCase_ == 5) {
         output.writeMessage(5, (io.greptime.v1.Ddl.FlushTableExpr) expr_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -508,7 +401,7 @@ public final class Ddl {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(5, (io.greptime.v1.Ddl.FlushTableExpr) expr_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -548,7 +441,7 @@ public final class Ddl {
         case 0:
         default:
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -583,7 +476,7 @@ public final class Ddl {
         case 0:
         default:
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -706,22 +599,33 @@ public final class Ddl {
 
       // Construct using io.greptime.v1.Ddl.DdlRequest.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
+        bitField0_ = 0;
+        if (createDatabaseBuilder_ != null) {
+          createDatabaseBuilder_.clear();
+        }
+        if (createTableBuilder_ != null) {
+          createTableBuilder_.clear();
+        }
+        if (alterBuilder_ != null) {
+          alterBuilder_.clear();
+        }
+        if (dropTableBuilder_ != null) {
+          dropTableBuilder_.clear();
+        }
+        if (flushTableBuilder_ != null) {
+          flushTableBuilder_.clear();
+        }
         exprCase_ = 0;
         expr_ = null;
         return this;
@@ -750,46 +654,41 @@ public final class Ddl {
       @java.lang.Override
       public io.greptime.v1.Ddl.DdlRequest buildPartial() {
         io.greptime.v1.Ddl.DdlRequest result = new io.greptime.v1.Ddl.DdlRequest(this);
-        if (exprCase_ == 1) {
-          if (createDatabaseBuilder_ == null) {
-            result.expr_ = expr_;
-          } else {
-            result.expr_ = createDatabaseBuilder_.build();
-          }
-        }
-        if (exprCase_ == 2) {
-          if (createTableBuilder_ == null) {
-            result.expr_ = expr_;
-          } else {
-            result.expr_ = createTableBuilder_.build();
-          }
-        }
-        if (exprCase_ == 3) {
-          if (alterBuilder_ == null) {
-            result.expr_ = expr_;
-          } else {
-            result.expr_ = alterBuilder_.build();
-          }
-        }
-        if (exprCase_ == 4) {
-          if (dropTableBuilder_ == null) {
-            result.expr_ = expr_;
-          } else {
-            result.expr_ = dropTableBuilder_.build();
-          }
-        }
-        if (exprCase_ == 5) {
-          if (flushTableBuilder_ == null) {
-            result.expr_ = expr_;
-          } else {
-            result.expr_ = flushTableBuilder_.build();
-          }
-        }
-        result.exprCase_ = exprCase_;
+        if (bitField0_ != 0) { buildPartial0(result); }
+        buildPartialOneofs(result);
         onBuilt();
         return result;
       }
 
+      private void buildPartial0(io.greptime.v1.Ddl.DdlRequest result) {
+        int from_bitField0_ = bitField0_;
+      }
+
+      private void buildPartialOneofs(io.greptime.v1.Ddl.DdlRequest result) {
+        result.exprCase_ = exprCase_;
+        result.expr_ = this.expr_;
+        if (exprCase_ == 1 &&
+            createDatabaseBuilder_ != null) {
+          result.expr_ = createDatabaseBuilder_.build();
+        }
+        if (exprCase_ == 2 &&
+            createTableBuilder_ != null) {
+          result.expr_ = createTableBuilder_.build();
+        }
+        if (exprCase_ == 3 &&
+            alterBuilder_ != null) {
+          result.expr_ = alterBuilder_.build();
+        }
+        if (exprCase_ == 4 &&
+            dropTableBuilder_ != null) {
+          result.expr_ = dropTableBuilder_.build();
+        }
+        if (exprCase_ == 5 &&
+            flushTableBuilder_ != null) {
+          result.expr_ = flushTableBuilder_.build();
+        }
+      }
+
       @java.lang.Override
       public Builder clone() {
         return super.clone();
@@ -859,7 +758,7 @@ public final class Ddl {
             break;
           }
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -874,17 +773,65 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Ddl.DdlRequest parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                input.readMessage(
+                    getCreateDatabaseFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                exprCase_ = 1;
+                break;
+              } // case 10
+              case 18: {
+                input.readMessage(
+                    getCreateTableFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                exprCase_ = 2;
+                break;
+              } // case 18
+              case 26: {
+                input.readMessage(
+                    getAlterFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                exprCase_ = 3;
+                break;
+              } // case 26
+              case 34: {
+                input.readMessage(
+                    getDropTableFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                exprCase_ = 4;
+                break;
+              } // case 34
+              case 42: {
+                input.readMessage(
+                    getFlushTableFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                exprCase_ = 5;
+                break;
+              } // case 42
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Ddl.DdlRequest) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
       private int exprCase_ = 0;
@@ -902,6 +849,7 @@ public final class Ddl {
         return this;
       }
 
+      private int bitField0_;
 
       private com.google.protobuf.SingleFieldBuilderV3<
           io.greptime.v1.Ddl.CreateDatabaseExpr, io.greptime.v1.Ddl.CreateDatabaseExpr.Builder, io.greptime.v1.Ddl.CreateDatabaseExprOrBuilder> createDatabaseBuilder_;
@@ -977,8 +925,9 @@ public final class Ddl {
         } else {
           if (exprCase_ == 1) {
             createDatabaseBuilder_.mergeFrom(value);
+          } else {
+            createDatabaseBuilder_.setMessage(value);
           }
-          createDatabaseBuilder_.setMessage(value);
         }
         exprCase_ = 1;
         return this;
@@ -1040,7 +989,7 @@ public final class Ddl {
           expr_ = null;
         }
         exprCase_ = 1;
-        onChanged();;
+        onChanged();
         return createDatabaseBuilder_;
       }
 
@@ -1118,8 +1067,9 @@ public final class Ddl {
         } else {
           if (exprCase_ == 2) {
             createTableBuilder_.mergeFrom(value);
+          } else {
+            createTableBuilder_.setMessage(value);
           }
-          createTableBuilder_.setMessage(value);
         }
         exprCase_ = 2;
         return this;
@@ -1181,7 +1131,7 @@ public final class Ddl {
           expr_ = null;
         }
         exprCase_ = 2;
-        onChanged();;
+        onChanged();
         return createTableBuilder_;
       }
 
@@ -1259,8 +1209,9 @@ public final class Ddl {
         } else {
           if (exprCase_ == 3) {
             alterBuilder_.mergeFrom(value);
+          } else {
+            alterBuilder_.setMessage(value);
           }
-          alterBuilder_.setMessage(value);
         }
         exprCase_ = 3;
         return this;
@@ -1322,7 +1273,7 @@ public final class Ddl {
           expr_ = null;
         }
         exprCase_ = 3;
-        onChanged();;
+        onChanged();
         return alterBuilder_;
       }
 
@@ -1400,8 +1351,9 @@ public final class Ddl {
         } else {
           if (exprCase_ == 4) {
             dropTableBuilder_.mergeFrom(value);
+          } else {
+            dropTableBuilder_.setMessage(value);
           }
-          dropTableBuilder_.setMessage(value);
         }
         exprCase_ = 4;
         return this;
@@ -1463,7 +1415,7 @@ public final class Ddl {
           expr_ = null;
         }
         exprCase_ = 4;
-        onChanged();;
+        onChanged();
         return dropTableBuilder_;
       }
 
@@ -1541,8 +1493,9 @@ public final class Ddl {
         } else {
           if (exprCase_ == 5) {
             flushTableBuilder_.mergeFrom(value);
+          } else {
+            flushTableBuilder_.setMessage(value);
           }
-          flushTableBuilder_.setMessage(value);
         }
         exprCase_ = 5;
         return this;
@@ -1604,7 +1557,7 @@ public final class Ddl {
           expr_ = null;
         }
         exprCase_ = 5;
-        onChanged();;
+        onChanged();
         return flushTableBuilder_;
       }
       @java.lang.Override
@@ -1640,7 +1593,18 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new DdlRequest(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
@@ -1802,14 +1766,14 @@ public final class Ddl {
     /**
      * map<string, string> table_options = 9;
      */
-
-    java.lang.String getTableOptionsOrDefault(
+    /* nullable */
+java.lang.String getTableOptionsOrDefault(
         java.lang.String key,
-        java.lang.String defaultValue);
+        /* nullable */
+java.lang.String defaultValue);
     /**
      * map<string, string> table_options = 9;
      */
-
     java.lang.String getTableOptionsOrThrow(
         java.lang.String key);
 
@@ -1844,6 +1808,18 @@ public final class Ddl {
      * @return The regionIds at the given index.
      */
     int getRegionIds(int index);
+
+    /**
+     * string engine = 12;
+     * @return The engine.
+     */
+    java.lang.String getEngine();
+    /**
+     * string engine = 12;
+     * @return The bytes for engine.
+     */
+    com.google.protobuf.ByteString
+        getEngineBytes();
   }
   /**
    * Protobuf type {@code greptime.v1.CreateTableExpr}
@@ -1866,6 +1842,7 @@ public final class Ddl {
       timeIndex_ = "";
       primaryKeys_ = com.google.protobuf.LazyStringArrayList.EMPTY;
       regionIds_ = emptyIntList();
+      engine_ = "";
     }
 
     @java.lang.Override
@@ -1880,153 +1857,6 @@ public final class Ddl {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private CreateTableExpr(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      int mutable_bitField0_ = 0;
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              catalogName_ = s;
-              break;
-            }
-            case 18: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              schemaName_ = s;
-              break;
-            }
-            case 26: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              tableName_ = s;
-              break;
-            }
-            case 34: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              desc_ = s;
-              break;
-            }
-            case 42: {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                columnDefs_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              columnDefs_.add(
-                  input.readMessage(io.greptime.v1.Columns.ColumnDef.parser(), extensionRegistry));
-              break;
-            }
-            case 50: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              timeIndex_ = s;
-              break;
-            }
-            case 58: {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                primaryKeys_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              primaryKeys_.add(s);
-              break;
-            }
-            case 64: {
-
-              createIfNotExists_ = input.readBool();
-              break;
-            }
-            case 74: {
-              if (!((mutable_bitField0_ & 0x00000004) != 0)) {
-                tableOptions_ = com.google.protobuf.MapField.newMapField(
-                    TableOptionsDefaultEntryHolder.defaultEntry);
-                mutable_bitField0_ |= 0x00000004;
-              }
-              com.google.protobuf.MapEntry
-              tableOptions__ = input.readMessage(
-                  TableOptionsDefaultEntryHolder.defaultEntry.getParserForType(), extensionRegistry);
-              tableOptions_.getMutableMap().put(
-                  tableOptions__.getKey(), tableOptions__.getValue());
-              break;
-            }
-            case 82: {
-              io.greptime.v1.Ddl.TableId.Builder subBuilder = null;
-              if (tableId_ != null) {
-                subBuilder = tableId_.toBuilder();
-              }
-              tableId_ = input.readMessage(io.greptime.v1.Ddl.TableId.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(tableId_);
-                tableId_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-            case 88: {
-              if (!((mutable_bitField0_ & 0x00000008) != 0)) {
-                regionIds_ = newIntList();
-                mutable_bitField0_ |= 0x00000008;
-              }
-              regionIds_.addInt(input.readUInt32());
-              break;
-            }
-            case 90: {
-              int length = input.readRawVarint32();
-              int limit = input.pushLimit(length);
-              if (!((mutable_bitField0_ & 0x00000008) != 0) && input.getBytesUntilLimit() > 0) {
-                regionIds_ = newIntList();
-                mutable_bitField0_ |= 0x00000008;
-              }
-              while (input.getBytesUntilLimit() > 0) {
-                regionIds_.addInt(input.readUInt32());
-              }
-              input.popLimit(limit);
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        if (((mutable_bitField0_ & 0x00000001) != 0)) {
-          columnDefs_ = java.util.Collections.unmodifiableList(columnDefs_);
-        }
-        if (((mutable_bitField0_ & 0x00000002) != 0)) {
-          primaryKeys_ = primaryKeys_.getUnmodifiableView();
-        }
-        if (((mutable_bitField0_ & 0x00000008) != 0)) {
-          regionIds_.makeImmutable(); // C
-        }
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Ddl.internal_static_greptime_v1_CreateTableExpr_descriptor;
@@ -2053,7 +1883,8 @@ public final class Ddl {
     }
 
     public static final int CATALOG_NAME_FIELD_NUMBER = 1;
-    private volatile java.lang.Object catalogName_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object catalogName_ = "";
     /**
      * string catalog_name = 1;
      * @return The catalogName.
@@ -2091,7 +1922,8 @@ public final class Ddl {
     }
 
     public static final int SCHEMA_NAME_FIELD_NUMBER = 2;
-    private volatile java.lang.Object schemaName_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object schemaName_ = "";
     /**
      * string schema_name = 2;
      * @return The schemaName.
@@ -2129,7 +1961,8 @@ public final class Ddl {
     }
 
     public static final int TABLE_NAME_FIELD_NUMBER = 3;
-    private volatile java.lang.Object tableName_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object tableName_ = "";
     /**
      * string table_name = 3;
      * @return The tableName.
@@ -2167,7 +2000,8 @@ public final class Ddl {
     }
 
     public static final int DESC_FIELD_NUMBER = 4;
-    private volatile java.lang.Object desc_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object desc_ = "";
     /**
      * string desc = 4;
      * @return The desc.
@@ -2205,6 +2039,7 @@ public final class Ddl {
     }
 
     public static final int COLUMN_DEFS_FIELD_NUMBER = 5;
+    @SuppressWarnings("serial")
     private java.util.List columnDefs_;
     /**
      * repeated .greptime.v1.ColumnDef column_defs = 5;
@@ -2245,7 +2080,8 @@ public final class Ddl {
     }
 
     public static final int TIME_INDEX_FIELD_NUMBER = 6;
-    private volatile java.lang.Object timeIndex_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object timeIndex_ = "";
     /**
      * string time_index = 6;
      * @return The timeIndex.
@@ -2283,6 +2119,7 @@ public final class Ddl {
     }
 
     public static final int PRIMARY_KEYS_FIELD_NUMBER = 7;
+    @SuppressWarnings("serial")
     private com.google.protobuf.LazyStringList primaryKeys_;
     /**
      * repeated string primary_keys = 7;
@@ -2318,7 +2155,7 @@ public final class Ddl {
     }
 
     public static final int CREATE_IF_NOT_EXISTS_FIELD_NUMBER = 8;
-    private boolean createIfNotExists_;
+    private boolean createIfNotExists_ = false;
     /**
      * bool create_if_not_exists = 8;
      * @return The createIfNotExists.
@@ -2340,6 +2177,7 @@ public final class Ddl {
                   com.google.protobuf.WireFormat.FieldType.STRING,
                   "");
     }
+    @SuppressWarnings("serial")
     private com.google.protobuf.MapField<
         java.lang.String, java.lang.String> tableOptions_;
     private com.google.protobuf.MapField
@@ -2350,14 +2188,12 @@ public final class Ddl {
       }
       return tableOptions_;
     }
-
     public int getTableOptionsCount() {
       return internalGetTableOptions().getMap().size();
     }
     /**
      * map<string, string> table_options = 9;
      */
-
     @java.lang.Override
     public boolean containsTableOptions(
         java.lang.String key) {
@@ -2376,7 +2212,6 @@ public final class Ddl {
      * map<string, string> table_options = 9;
      */
     @java.lang.Override
-
     public java.util.Map getTableOptionsMap() {
       return internalGetTableOptions().getMap();
     }
@@ -2384,10 +2219,11 @@ public final class Ddl {
      * map<string, string> table_options = 9;
      */
     @java.lang.Override
-
-    public java.lang.String getTableOptionsOrDefault(
+    public /* nullable */
+java.lang.String getTableOptionsOrDefault(
         java.lang.String key,
-        java.lang.String defaultValue) {
+        /* nullable */
+java.lang.String defaultValue) {
       if (key == null) { throw new NullPointerException("map key"); }
       java.util.Map map =
           internalGetTableOptions().getMap();
@@ -2397,7 +2233,6 @@ public final class Ddl {
      * map<string, string> table_options = 9;
      */
     @java.lang.Override
-
     public java.lang.String getTableOptionsOrThrow(
         java.lang.String key) {
       if (key == null) { throw new NullPointerException("map key"); }
@@ -2432,10 +2267,11 @@ public final class Ddl {
      */
     @java.lang.Override
     public io.greptime.v1.Ddl.TableIdOrBuilder getTableIdOrBuilder() {
-      return getTableId();
+      return tableId_ == null ? io.greptime.v1.Ddl.TableId.getDefaultInstance() : tableId_;
     }
 
     public static final int REGION_IDS_FIELD_NUMBER = 11;
+    @SuppressWarnings("serial")
     private com.google.protobuf.Internal.IntList regionIds_;
     /**
      * repeated uint32 region_ids = 11;
@@ -2463,6 +2299,45 @@ public final class Ddl {
     }
     private int regionIdsMemoizedSerializedSize = -1;
 
+    public static final int ENGINE_FIELD_NUMBER = 12;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object engine_ = "";
+    /**
+     * string engine = 12;
+     * @return The engine.
+     */
+    @java.lang.Override
+    public java.lang.String getEngine() {
+      java.lang.Object ref = engine_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = 
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        engine_ = s;
+        return s;
+      }
+    }
+    /**
+     * string engine = 12;
+     * @return The bytes for engine.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString
+        getEngineBytes() {
+      java.lang.Object ref = engine_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        engine_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
     private byte memoizedIsInitialized = -1;
     @java.lang.Override
     public final boolean isInitialized() {
@@ -2518,7 +2393,10 @@ public final class Ddl {
       for (int i = 0; i < regionIds_.size(); i++) {
         output.writeUInt32NoTag(regionIds_.getInt(i));
       }
-      unknownFields.writeTo(output);
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(engine_)) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 12, engine_);
+      }
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -2586,7 +2464,10 @@ public final class Ddl {
         }
         regionIdsMemoizedSerializedSize = dataSize;
       }
-      size += unknownFields.getSerializedSize();
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(engine_)) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(12, engine_);
+      }
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -2626,7 +2507,9 @@ public final class Ddl {
       }
       if (!getRegionIdsList()
           .equals(other.getRegionIdsList())) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getEngine()
+          .equals(other.getEngine())) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -2670,7 +2553,9 @@ public final class Ddl {
         hash = (37 * hash) + REGION_IDS_FIELD_NUMBER;
         hash = (53 * hash) + getRegionIdsList().hashCode();
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (37 * hash) + ENGINE_FIELD_NUMBER;
+      hash = (53 * hash) + getEngine().hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -2809,52 +2694,41 @@ public final class Ddl {
 
       // Construct using io.greptime.v1.Ddl.CreateTableExpr.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-          getColumnDefsFieldBuilder();
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
+        bitField0_ = 0;
         catalogName_ = "";
-
         schemaName_ = "";
-
         tableName_ = "";
-
         desc_ = "";
-
         if (columnDefsBuilder_ == null) {
           columnDefs_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000001);
         } else {
+          columnDefs_ = null;
           columnDefsBuilder_.clear();
         }
+        bitField0_ = (bitField0_ & ~0x00000010);
         timeIndex_ = "";
-
         primaryKeys_ = com.google.protobuf.LazyStringArrayList.EMPTY;
-        bitField0_ = (bitField0_ & ~0x00000002);
+        bitField0_ = (bitField0_ & ~0x00000040);
         createIfNotExists_ = false;
-
         internalGetMutableTableOptions().clear();
-        if (tableIdBuilder_ == null) {
-          tableId_ = null;
-        } else {
-          tableId_ = null;
+        tableId_ = null;
+        if (tableIdBuilder_ != null) {
+          tableIdBuilder_.dispose();
           tableIdBuilder_ = null;
         }
         regionIds_ = emptyIntList();
-        bitField0_ = (bitField0_ & ~0x00000008);
+        engine_ = "";
         return this;
       }
 
@@ -2881,41 +2755,66 @@ public final class Ddl {
       @java.lang.Override
       public io.greptime.v1.Ddl.CreateTableExpr buildPartial() {
         io.greptime.v1.Ddl.CreateTableExpr result = new io.greptime.v1.Ddl.CreateTableExpr(this);
-        int from_bitField0_ = bitField0_;
-        result.catalogName_ = catalogName_;
-        result.schemaName_ = schemaName_;
-        result.tableName_ = tableName_;
-        result.desc_ = desc_;
+        buildPartialRepeatedFields(result);
+        if (bitField0_ != 0) { buildPartial0(result); }
+        onBuilt();
+        return result;
+      }
+
+      private void buildPartialRepeatedFields(io.greptime.v1.Ddl.CreateTableExpr result) {
         if (columnDefsBuilder_ == null) {
-          if (((bitField0_ & 0x00000001) != 0)) {
+          if (((bitField0_ & 0x00000010) != 0)) {
             columnDefs_ = java.util.Collections.unmodifiableList(columnDefs_);
-            bitField0_ = (bitField0_ & ~0x00000001);
+            bitField0_ = (bitField0_ & ~0x00000010);
           }
           result.columnDefs_ = columnDefs_;
         } else {
           result.columnDefs_ = columnDefsBuilder_.build();
         }
-        result.timeIndex_ = timeIndex_;
-        if (((bitField0_ & 0x00000002) != 0)) {
+        if (((bitField0_ & 0x00000040) != 0)) {
           primaryKeys_ = primaryKeys_.getUnmodifiableView();
-          bitField0_ = (bitField0_ & ~0x00000002);
+          bitField0_ = (bitField0_ & ~0x00000040);
         }
         result.primaryKeys_ = primaryKeys_;
-        result.createIfNotExists_ = createIfNotExists_;
-        result.tableOptions_ = internalGetTableOptions();
-        result.tableOptions_.makeImmutable();
-        if (tableIdBuilder_ == null) {
-          result.tableId_ = tableId_;
-        } else {
-          result.tableId_ = tableIdBuilder_.build();
-        }
-        if (((bitField0_ & 0x00000008) != 0)) {
+        if (((bitField0_ & 0x00000400) != 0)) {
           regionIds_.makeImmutable();
-          bitField0_ = (bitField0_ & ~0x00000008);
+          bitField0_ = (bitField0_ & ~0x00000400);
         }
         result.regionIds_ = regionIds_;
-        onBuilt();
-        return result;
+      }
+
+      private void buildPartial0(io.greptime.v1.Ddl.CreateTableExpr result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.catalogName_ = catalogName_;
+        }
+        if (((from_bitField0_ & 0x00000002) != 0)) {
+          result.schemaName_ = schemaName_;
+        }
+        if (((from_bitField0_ & 0x00000004) != 0)) {
+          result.tableName_ = tableName_;
+        }
+        if (((from_bitField0_ & 0x00000008) != 0)) {
+          result.desc_ = desc_;
+        }
+        if (((from_bitField0_ & 0x00000020) != 0)) {
+          result.timeIndex_ = timeIndex_;
+        }
+        if (((from_bitField0_ & 0x00000080) != 0)) {
+          result.createIfNotExists_ = createIfNotExists_;
+        }
+        if (((from_bitField0_ & 0x00000100) != 0)) {
+          result.tableOptions_ = internalGetTableOptions();
+          result.tableOptions_.makeImmutable();
+        }
+        if (((from_bitField0_ & 0x00000200) != 0)) {
+          result.tableId_ = tableIdBuilder_ == null
+              ? tableId_
+              : tableIdBuilder_.build();
+        }
+        if (((from_bitField0_ & 0x00000800) != 0)) {
+          result.engine_ = engine_;
+        }
       }
 
       @java.lang.Override
@@ -2964,25 +2863,29 @@ public final class Ddl {
         if (other == io.greptime.v1.Ddl.CreateTableExpr.getDefaultInstance()) return this;
         if (!other.getCatalogName().isEmpty()) {
           catalogName_ = other.catalogName_;
+          bitField0_ |= 0x00000001;
           onChanged();
         }
         if (!other.getSchemaName().isEmpty()) {
           schemaName_ = other.schemaName_;
+          bitField0_ |= 0x00000002;
           onChanged();
         }
         if (!other.getTableName().isEmpty()) {
           tableName_ = other.tableName_;
+          bitField0_ |= 0x00000004;
           onChanged();
         }
         if (!other.getDesc().isEmpty()) {
           desc_ = other.desc_;
+          bitField0_ |= 0x00000008;
           onChanged();
         }
         if (columnDefsBuilder_ == null) {
           if (!other.columnDefs_.isEmpty()) {
             if (columnDefs_.isEmpty()) {
               columnDefs_ = other.columnDefs_;
-              bitField0_ = (bitField0_ & ~0x00000001);
+              bitField0_ = (bitField0_ & ~0x00000010);
             } else {
               ensureColumnDefsIsMutable();
               columnDefs_.addAll(other.columnDefs_);
@@ -2995,7 +2898,7 @@ public final class Ddl {
               columnDefsBuilder_.dispose();
               columnDefsBuilder_ = null;
               columnDefs_ = other.columnDefs_;
-              bitField0_ = (bitField0_ & ~0x00000001);
+              bitField0_ = (bitField0_ & ~0x00000010);
               columnDefsBuilder_ = 
                 com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                    getColumnDefsFieldBuilder() : null;
@@ -3006,12 +2909,13 @@ public final class Ddl {
         }
         if (!other.getTimeIndex().isEmpty()) {
           timeIndex_ = other.timeIndex_;
+          bitField0_ |= 0x00000020;
           onChanged();
         }
         if (!other.primaryKeys_.isEmpty()) {
           if (primaryKeys_.isEmpty()) {
             primaryKeys_ = other.primaryKeys_;
-            bitField0_ = (bitField0_ & ~0x00000002);
+            bitField0_ = (bitField0_ & ~0x00000040);
           } else {
             ensurePrimaryKeysIsMutable();
             primaryKeys_.addAll(other.primaryKeys_);
@@ -3023,20 +2927,26 @@ public final class Ddl {
         }
         internalGetMutableTableOptions().mergeFrom(
             other.internalGetTableOptions());
+        bitField0_ |= 0x00000100;
         if (other.hasTableId()) {
           mergeTableId(other.getTableId());
         }
         if (!other.regionIds_.isEmpty()) {
           if (regionIds_.isEmpty()) {
             regionIds_ = other.regionIds_;
-            bitField0_ = (bitField0_ & ~0x00000008);
+            bitField0_ = (bitField0_ & ~0x00000400);
           } else {
             ensureRegionIdsIsMutable();
             regionIds_.addAll(other.regionIds_);
           }
           onChanged();
         }
-        this.mergeUnknownFields(other.unknownFields);
+        if (!other.getEngine().isEmpty()) {
+          engine_ = other.engine_;
+          bitField0_ |= 0x00000800;
+          onChanged();
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -3051,17 +2961,116 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Ddl.CreateTableExpr parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                catalogName_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+              case 18: {
+                schemaName_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000002;
+                break;
+              } // case 18
+              case 26: {
+                tableName_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000004;
+                break;
+              } // case 26
+              case 34: {
+                desc_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000008;
+                break;
+              } // case 34
+              case 42: {
+                io.greptime.v1.Columns.ColumnDef m =
+                    input.readMessage(
+                        io.greptime.v1.Columns.ColumnDef.parser(),
+                        extensionRegistry);
+                if (columnDefsBuilder_ == null) {
+                  ensureColumnDefsIsMutable();
+                  columnDefs_.add(m);
+                } else {
+                  columnDefsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 42
+              case 50: {
+                timeIndex_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000020;
+                break;
+              } // case 50
+              case 58: {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensurePrimaryKeysIsMutable();
+                primaryKeys_.add(s);
+                break;
+              } // case 58
+              case 64: {
+                createIfNotExists_ = input.readBool();
+                bitField0_ |= 0x00000080;
+                break;
+              } // case 64
+              case 74: {
+                com.google.protobuf.MapEntry
+                tableOptions__ = input.readMessage(
+                    TableOptionsDefaultEntryHolder.defaultEntry.getParserForType(), extensionRegistry);
+                internalGetMutableTableOptions().getMutableMap().put(
+                    tableOptions__.getKey(), tableOptions__.getValue());
+                bitField0_ |= 0x00000100;
+                break;
+              } // case 74
+              case 82: {
+                input.readMessage(
+                    getTableIdFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                bitField0_ |= 0x00000200;
+                break;
+              } // case 82
+              case 88: {
+                int v = input.readUInt32();
+                ensureRegionIdsIsMutable();
+                regionIds_.addInt(v);
+                break;
+              } // case 88
+              case 90: {
+                int length = input.readRawVarint32();
+                int limit = input.pushLimit(length);
+                ensureRegionIdsIsMutable();
+                while (input.getBytesUntilLimit() > 0) {
+                  regionIds_.addInt(input.readUInt32());
+                }
+                input.popLimit(limit);
+                break;
+              } // case 90
+              case 98: {
+                engine_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000800;
+                break;
+              } // case 98
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Ddl.CreateTableExpr) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
       private int bitField0_;
@@ -3107,11 +3116,9 @@ public final class Ddl {
        */
       public Builder setCatalogName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         catalogName_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -3120,8 +3127,8 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearCatalogName() {
-        
         catalogName_ = getDefaultInstance().getCatalogName();
+        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -3132,12 +3139,10 @@ public final class Ddl {
        */
       public Builder setCatalogNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         catalogName_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -3183,11 +3188,9 @@ public final class Ddl {
        */
       public Builder setSchemaName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         schemaName_ = value;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -3196,8 +3199,8 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearSchemaName() {
-        
         schemaName_ = getDefaultInstance().getSchemaName();
+        bitField0_ = (bitField0_ & ~0x00000002);
         onChanged();
         return this;
       }
@@ -3208,12 +3211,10 @@ public final class Ddl {
        */
       public Builder setSchemaNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         schemaName_ = value;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -3259,11 +3260,9 @@ public final class Ddl {
        */
       public Builder setTableName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         tableName_ = value;
+        bitField0_ |= 0x00000004;
         onChanged();
         return this;
       }
@@ -3272,8 +3271,8 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearTableName() {
-        
         tableName_ = getDefaultInstance().getTableName();
+        bitField0_ = (bitField0_ & ~0x00000004);
         onChanged();
         return this;
       }
@@ -3284,12 +3283,10 @@ public final class Ddl {
        */
       public Builder setTableNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         tableName_ = value;
+        bitField0_ |= 0x00000004;
         onChanged();
         return this;
       }
@@ -3335,11 +3332,9 @@ public final class Ddl {
        */
       public Builder setDesc(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         desc_ = value;
+        bitField0_ |= 0x00000008;
         onChanged();
         return this;
       }
@@ -3348,8 +3343,8 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearDesc() {
-        
         desc_ = getDefaultInstance().getDesc();
+        bitField0_ = (bitField0_ & ~0x00000008);
         onChanged();
         return this;
       }
@@ -3360,12 +3355,10 @@ public final class Ddl {
        */
       public Builder setDescBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         desc_ = value;
+        bitField0_ |= 0x00000008;
         onChanged();
         return this;
       }
@@ -3373,9 +3366,9 @@ public final class Ddl {
       private java.util.List columnDefs_ =
         java.util.Collections.emptyList();
       private void ensureColumnDefsIsMutable() {
-        if (!((bitField0_ & 0x00000001) != 0)) {
+        if (!((bitField0_ & 0x00000010) != 0)) {
           columnDefs_ = new java.util.ArrayList(columnDefs_);
-          bitField0_ |= 0x00000001;
+          bitField0_ |= 0x00000010;
          }
       }
 
@@ -3525,7 +3518,7 @@ public final class Ddl {
       public Builder clearColumnDefs() {
         if (columnDefsBuilder_ == null) {
           columnDefs_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000001);
+          bitField0_ = (bitField0_ & ~0x00000010);
           onChanged();
         } else {
           columnDefsBuilder_.clear();
@@ -3602,7 +3595,7 @@ public final class Ddl {
           columnDefsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
               io.greptime.v1.Columns.ColumnDef, io.greptime.v1.Columns.ColumnDef.Builder, io.greptime.v1.Columns.ColumnDefOrBuilder>(
                   columnDefs_,
-                  ((bitField0_ & 0x00000001) != 0),
+                  ((bitField0_ & 0x00000010) != 0),
                   getParentForChildren(),
                   isClean());
           columnDefs_ = null;
@@ -3651,11 +3644,9 @@ public final class Ddl {
        */
       public Builder setTimeIndex(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         timeIndex_ = value;
+        bitField0_ |= 0x00000020;
         onChanged();
         return this;
       }
@@ -3664,8 +3655,8 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearTimeIndex() {
-        
         timeIndex_ = getDefaultInstance().getTimeIndex();
+        bitField0_ = (bitField0_ & ~0x00000020);
         onChanged();
         return this;
       }
@@ -3676,21 +3667,19 @@ public final class Ddl {
        */
       public Builder setTimeIndexBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         timeIndex_ = value;
+        bitField0_ |= 0x00000020;
         onChanged();
         return this;
       }
 
       private com.google.protobuf.LazyStringList primaryKeys_ = com.google.protobuf.LazyStringArrayList.EMPTY;
       private void ensurePrimaryKeysIsMutable() {
-        if (!((bitField0_ & 0x00000002) != 0)) {
+        if (!((bitField0_ & 0x00000040) != 0)) {
           primaryKeys_ = new com.google.protobuf.LazyStringArrayList(primaryKeys_);
-          bitField0_ |= 0x00000002;
+          bitField0_ |= 0x00000040;
          }
       }
       /**
@@ -3733,10 +3722,8 @@ public final class Ddl {
        */
       public Builder setPrimaryKeys(
           int index, java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  ensurePrimaryKeysIsMutable();
+        if (value == null) { throw new NullPointerException(); }
+        ensurePrimaryKeysIsMutable();
         primaryKeys_.set(index, value);
         onChanged();
         return this;
@@ -3748,10 +3735,8 @@ public final class Ddl {
        */
       public Builder addPrimaryKeys(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  ensurePrimaryKeysIsMutable();
+        if (value == null) { throw new NullPointerException(); }
+        ensurePrimaryKeysIsMutable();
         primaryKeys_.add(value);
         onChanged();
         return this;
@@ -3775,7 +3760,7 @@ public final class Ddl {
        */
       public Builder clearPrimaryKeys() {
         primaryKeys_ = com.google.protobuf.LazyStringArrayList.EMPTY;
-        bitField0_ = (bitField0_ & ~0x00000002);
+        bitField0_ = (bitField0_ & ~0x00000040);
         onChanged();
         return this;
       }
@@ -3786,10 +3771,8 @@ public final class Ddl {
        */
       public Builder addPrimaryKeysBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         ensurePrimaryKeysIsMutable();
         primaryKeys_.add(value);
         onChanged();
@@ -3813,6 +3796,7 @@ public final class Ddl {
       public Builder setCreateIfNotExists(boolean value) {
         
         createIfNotExists_ = value;
+        bitField0_ |= 0x00000080;
         onChanged();
         return this;
       }
@@ -3821,7 +3805,7 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearCreateIfNotExists() {
-        
+        bitField0_ = (bitField0_ & ~0x00000080);
         createIfNotExists_ = false;
         onChanged();
         return this;
@@ -3830,7 +3814,7 @@ public final class Ddl {
       private com.google.protobuf.MapField<
           java.lang.String, java.lang.String> tableOptions_;
       private com.google.protobuf.MapField
-      internalGetTableOptions() {
+          internalGetTableOptions() {
         if (tableOptions_ == null) {
           return com.google.protobuf.MapField.emptyMapField(
               TableOptionsDefaultEntryHolder.defaultEntry);
@@ -3838,8 +3822,7 @@ public final class Ddl {
         return tableOptions_;
       }
       private com.google.protobuf.MapField
-      internalGetMutableTableOptions() {
-        onChanged();;
+          internalGetMutableTableOptions() {
         if (tableOptions_ == null) {
           tableOptions_ = com.google.protobuf.MapField.newMapField(
               TableOptionsDefaultEntryHolder.defaultEntry);
@@ -3847,16 +3830,16 @@ public final class Ddl {
         if (!tableOptions_.isMutable()) {
           tableOptions_ = tableOptions_.copy();
         }
+        bitField0_ |= 0x00000100;
+        onChanged();
         return tableOptions_;
       }
-
       public int getTableOptionsCount() {
         return internalGetTableOptions().getMap().size();
       }
       /**
        * map<string, string> table_options = 9;
        */
-
       @java.lang.Override
       public boolean containsTableOptions(
           java.lang.String key) {
@@ -3875,7 +3858,6 @@ public final class Ddl {
        * map<string, string> table_options = 9;
        */
       @java.lang.Override
-
       public java.util.Map getTableOptionsMap() {
         return internalGetTableOptions().getMap();
       }
@@ -3883,10 +3865,11 @@ public final class Ddl {
        * map<string, string> table_options = 9;
        */
       @java.lang.Override
-
-      public java.lang.String getTableOptionsOrDefault(
+      public /* nullable */
+java.lang.String getTableOptionsOrDefault(
           java.lang.String key,
-          java.lang.String defaultValue) {
+          /* nullable */
+java.lang.String defaultValue) {
         if (key == null) { throw new NullPointerException("map key"); }
         java.util.Map map =
             internalGetTableOptions().getMap();
@@ -3896,7 +3879,6 @@ public final class Ddl {
        * map<string, string> table_options = 9;
        */
       @java.lang.Override
-
       public java.lang.String getTableOptionsOrThrow(
           java.lang.String key) {
         if (key == null) { throw new NullPointerException("map key"); }
@@ -3907,8 +3889,8 @@ public final class Ddl {
         }
         return map.get(key);
       }
-
       public Builder clearTableOptions() {
+        bitField0_ = (bitField0_ & ~0x00000100);
         internalGetMutableTableOptions().getMutableMap()
             .clear();
         return this;
@@ -3916,7 +3898,6 @@ public final class Ddl {
       /**
        * map<string, string> table_options = 9;
        */
-
       public Builder removeTableOptions(
           java.lang.String key) {
         if (key == null) { throw new NullPointerException("map key"); }
@@ -3929,7 +3910,8 @@ public final class Ddl {
        */
       @java.lang.Deprecated
       public java.util.Map
-      getMutableTableOptions() {
+          getMutableTableOptions() {
+        bitField0_ |= 0x00000100;
         return internalGetMutableTableOptions().getMutableMap();
       }
       /**
@@ -3939,22 +3921,20 @@ public final class Ddl {
           java.lang.String key,
           java.lang.String value) {
         if (key == null) { throw new NullPointerException("map key"); }
-        if (value == null) {
-  throw new NullPointerException("map value");
-}
-
+        if (value == null) { throw new NullPointerException("map value"); }
         internalGetMutableTableOptions().getMutableMap()
             .put(key, value);
+        bitField0_ |= 0x00000100;
         return this;
       }
       /**
        * map<string, string> table_options = 9;
        */
-
       public Builder putAllTableOptions(
           java.util.Map values) {
         internalGetMutableTableOptions().getMutableMap()
             .putAll(values);
+        bitField0_ |= 0x00000100;
         return this;
       }
 
@@ -3966,7 +3946,7 @@ public final class Ddl {
        * @return Whether the tableId field is set.
        */
       public boolean hasTableId() {
-        return tableIdBuilder_ != null || tableId_ != null;
+        return ((bitField0_ & 0x00000200) != 0);
       }
       /**
        * .greptime.v1.TableId table_id = 10;
@@ -3988,11 +3968,11 @@ public final class Ddl {
             throw new NullPointerException();
           }
           tableId_ = value;
-          onChanged();
         } else {
           tableIdBuilder_.setMessage(value);
         }
-
+        bitField0_ |= 0x00000200;
+        onChanged();
         return this;
       }
       /**
@@ -4002,11 +3982,11 @@ public final class Ddl {
           io.greptime.v1.Ddl.TableId.Builder builderForValue) {
         if (tableIdBuilder_ == null) {
           tableId_ = builderForValue.build();
-          onChanged();
         } else {
           tableIdBuilder_.setMessage(builderForValue.build());
         }
-
+        bitField0_ |= 0x00000200;
+        onChanged();
         return this;
       }
       /**
@@ -4014,38 +3994,38 @@ public final class Ddl {
        */
       public Builder mergeTableId(io.greptime.v1.Ddl.TableId value) {
         if (tableIdBuilder_ == null) {
-          if (tableId_ != null) {
-            tableId_ =
-              io.greptime.v1.Ddl.TableId.newBuilder(tableId_).mergeFrom(value).buildPartial();
+          if (((bitField0_ & 0x00000200) != 0) &&
+            tableId_ != null &&
+            tableId_ != io.greptime.v1.Ddl.TableId.getDefaultInstance()) {
+            getTableIdBuilder().mergeFrom(value);
           } else {
             tableId_ = value;
           }
-          onChanged();
         } else {
           tableIdBuilder_.mergeFrom(value);
         }
-
+        bitField0_ |= 0x00000200;
+        onChanged();
         return this;
       }
       /**
        * .greptime.v1.TableId table_id = 10;
        */
       public Builder clearTableId() {
-        if (tableIdBuilder_ == null) {
-          tableId_ = null;
-          onChanged();
-        } else {
-          tableId_ = null;
+        bitField0_ = (bitField0_ & ~0x00000200);
+        tableId_ = null;
+        if (tableIdBuilder_ != null) {
+          tableIdBuilder_.dispose();
           tableIdBuilder_ = null;
         }
-
+        onChanged();
         return this;
       }
       /**
        * .greptime.v1.TableId table_id = 10;
        */
       public io.greptime.v1.Ddl.TableId.Builder getTableIdBuilder() {
-        
+        bitField0_ |= 0x00000200;
         onChanged();
         return getTableIdFieldBuilder().getBuilder();
       }
@@ -4079,10 +4059,10 @@ public final class Ddl {
 
       private com.google.protobuf.Internal.IntList regionIds_ = emptyIntList();
       private void ensureRegionIdsIsMutable() {
-        if (!((bitField0_ & 0x00000008) != 0)) {
+        if (!((bitField0_ & 0x00000400) != 0)) {
           regionIds_ = mutableCopy(regionIds_);
-          bitField0_ |= 0x00000008;
-         }
+          bitField0_ |= 0x00000400;
+        }
       }
       /**
        * repeated uint32 region_ids = 11;
@@ -4090,7 +4070,7 @@ public final class Ddl {
        */
       public java.util.List
           getRegionIdsList() {
-        return ((bitField0_ & 0x00000008) != 0) ?
+        return ((bitField0_ & 0x00000400) != 0) ?
                  java.util.Collections.unmodifiableList(regionIds_) : regionIds_;
       }
       /**
@@ -4116,6 +4096,7 @@ public final class Ddl {
        */
       public Builder setRegionIds(
           int index, int value) {
+        
         ensureRegionIdsIsMutable();
         regionIds_.setInt(index, value);
         onChanged();
@@ -4127,6 +4108,7 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder addRegionIds(int value) {
+        
         ensureRegionIdsIsMutable();
         regionIds_.addInt(value);
         onChanged();
@@ -4151,7 +4133,79 @@ public final class Ddl {
        */
       public Builder clearRegionIds() {
         regionIds_ = emptyIntList();
-        bitField0_ = (bitField0_ & ~0x00000008);
+        bitField0_ = (bitField0_ & ~0x00000400);
+        onChanged();
+        return this;
+      }
+
+      private java.lang.Object engine_ = "";
+      /**
+       * string engine = 12;
+       * @return The engine.
+       */
+      public java.lang.String getEngine() {
+        java.lang.Object ref = engine_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs =
+              (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          engine_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       * string engine = 12;
+       * @return The bytes for engine.
+       */
+      public com.google.protobuf.ByteString
+          getEngineBytes() {
+        java.lang.Object ref = engine_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b = 
+              com.google.protobuf.ByteString.copyFromUtf8(
+                  (java.lang.String) ref);
+          engine_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       * string engine = 12;
+       * @param value The engine to set.
+       * @return This builder for chaining.
+       */
+      public Builder setEngine(
+          java.lang.String value) {
+        if (value == null) { throw new NullPointerException(); }
+        engine_ = value;
+        bitField0_ |= 0x00000800;
+        onChanged();
+        return this;
+      }
+      /**
+       * string engine = 12;
+       * @return This builder for chaining.
+       */
+      public Builder clearEngine() {
+        engine_ = getDefaultInstance().getEngine();
+        bitField0_ = (bitField0_ & ~0x00000800);
+        onChanged();
+        return this;
+      }
+      /**
+       * string engine = 12;
+       * @param value The bytes for engine to set.
+       * @return This builder for chaining.
+       */
+      public Builder setEngineBytes(
+          com.google.protobuf.ByteString value) {
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
+        engine_ = value;
+        bitField0_ |= 0x00000800;
         onChanged();
         return this;
       }
@@ -4188,7 +4242,18 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new CreateTableExpr(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
@@ -4325,103 +4390,6 @@ public final class Ddl {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private AlterExpr(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              catalogName_ = s;
-              break;
-            }
-            case 18: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              schemaName_ = s;
-              break;
-            }
-            case 26: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              tableName_ = s;
-              break;
-            }
-            case 34: {
-              io.greptime.v1.Ddl.AddColumns.Builder subBuilder = null;
-              if (kindCase_ == 4) {
-                subBuilder = ((io.greptime.v1.Ddl.AddColumns) kind_).toBuilder();
-              }
-              kind_ =
-                  input.readMessage(io.greptime.v1.Ddl.AddColumns.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((io.greptime.v1.Ddl.AddColumns) kind_);
-                kind_ = subBuilder.buildPartial();
-              }
-              kindCase_ = 4;
-              break;
-            }
-            case 42: {
-              io.greptime.v1.Ddl.DropColumns.Builder subBuilder = null;
-              if (kindCase_ == 5) {
-                subBuilder = ((io.greptime.v1.Ddl.DropColumns) kind_).toBuilder();
-              }
-              kind_ =
-                  input.readMessage(io.greptime.v1.Ddl.DropColumns.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((io.greptime.v1.Ddl.DropColumns) kind_);
-                kind_ = subBuilder.buildPartial();
-              }
-              kindCase_ = 5;
-              break;
-            }
-            case 50: {
-              io.greptime.v1.Ddl.RenameTable.Builder subBuilder = null;
-              if (kindCase_ == 6) {
-                subBuilder = ((io.greptime.v1.Ddl.RenameTable) kind_).toBuilder();
-              }
-              kind_ =
-                  input.readMessage(io.greptime.v1.Ddl.RenameTable.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((io.greptime.v1.Ddl.RenameTable) kind_);
-                kind_ = subBuilder.buildPartial();
-              }
-              kindCase_ = 6;
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Ddl.internal_static_greptime_v1_AlterExpr_descriptor;
@@ -4479,7 +4447,8 @@ public final class Ddl {
     }
 
     public static final int CATALOG_NAME_FIELD_NUMBER = 1;
-    private volatile java.lang.Object catalogName_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object catalogName_ = "";
     /**
      * string catalog_name = 1;
      * @return The catalogName.
@@ -4517,7 +4486,8 @@ public final class Ddl {
     }
 
     public static final int SCHEMA_NAME_FIELD_NUMBER = 2;
-    private volatile java.lang.Object schemaName_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object schemaName_ = "";
     /**
      * string schema_name = 2;
      * @return The schemaName.
@@ -4555,7 +4525,8 @@ public final class Ddl {
     }
 
     public static final int TABLE_NAME_FIELD_NUMBER = 3;
-    private volatile java.lang.Object tableName_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object tableName_ = "";
     /**
      * string table_name = 3;
      * @return The tableName.
@@ -4717,7 +4688,7 @@ public final class Ddl {
       if (kindCase_ == 6) {
         output.writeMessage(6, (io.greptime.v1.Ddl.RenameTable) kind_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -4747,7 +4718,7 @@ public final class Ddl {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(6, (io.greptime.v1.Ddl.RenameTable) kind_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -4785,7 +4756,7 @@ public final class Ddl {
         case 0:
         default:
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -4818,7 +4789,7 @@ public final class Ddl {
         case 0:
         default:
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -4935,28 +4906,30 @@ public final class Ddl {
 
       // Construct using io.greptime.v1.Ddl.AlterExpr.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
+        bitField0_ = 0;
         catalogName_ = "";
-
         schemaName_ = "";
-
         tableName_ = "";
-
+        if (addColumnsBuilder_ != null) {
+          addColumnsBuilder_.clear();
+        }
+        if (dropColumnsBuilder_ != null) {
+          dropColumnsBuilder_.clear();
+        }
+        if (renameTableBuilder_ != null) {
+          renameTableBuilder_.clear();
+        }
         kindCase_ = 0;
         kind_ = null;
         return this;
@@ -4985,35 +4958,42 @@ public final class Ddl {
       @java.lang.Override
       public io.greptime.v1.Ddl.AlterExpr buildPartial() {
         io.greptime.v1.Ddl.AlterExpr result = new io.greptime.v1.Ddl.AlterExpr(this);
-        result.catalogName_ = catalogName_;
-        result.schemaName_ = schemaName_;
-        result.tableName_ = tableName_;
-        if (kindCase_ == 4) {
-          if (addColumnsBuilder_ == null) {
-            result.kind_ = kind_;
-          } else {
-            result.kind_ = addColumnsBuilder_.build();
-          }
-        }
-        if (kindCase_ == 5) {
-          if (dropColumnsBuilder_ == null) {
-            result.kind_ = kind_;
-          } else {
-            result.kind_ = dropColumnsBuilder_.build();
-          }
-        }
-        if (kindCase_ == 6) {
-          if (renameTableBuilder_ == null) {
-            result.kind_ = kind_;
-          } else {
-            result.kind_ = renameTableBuilder_.build();
-          }
-        }
-        result.kindCase_ = kindCase_;
+        if (bitField0_ != 0) { buildPartial0(result); }
+        buildPartialOneofs(result);
         onBuilt();
         return result;
       }
 
+      private void buildPartial0(io.greptime.v1.Ddl.AlterExpr result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.catalogName_ = catalogName_;
+        }
+        if (((from_bitField0_ & 0x00000002) != 0)) {
+          result.schemaName_ = schemaName_;
+        }
+        if (((from_bitField0_ & 0x00000004) != 0)) {
+          result.tableName_ = tableName_;
+        }
+      }
+
+      private void buildPartialOneofs(io.greptime.v1.Ddl.AlterExpr result) {
+        result.kindCase_ = kindCase_;
+        result.kind_ = this.kind_;
+        if (kindCase_ == 4 &&
+            addColumnsBuilder_ != null) {
+          result.kind_ = addColumnsBuilder_.build();
+        }
+        if (kindCase_ == 5 &&
+            dropColumnsBuilder_ != null) {
+          result.kind_ = dropColumnsBuilder_.build();
+        }
+        if (kindCase_ == 6 &&
+            renameTableBuilder_ != null) {
+          result.kind_ = renameTableBuilder_.build();
+        }
+      }
+
       @java.lang.Override
       public Builder clone() {
         return super.clone();
@@ -5060,14 +5040,17 @@ public final class Ddl {
         if (other == io.greptime.v1.Ddl.AlterExpr.getDefaultInstance()) return this;
         if (!other.getCatalogName().isEmpty()) {
           catalogName_ = other.catalogName_;
+          bitField0_ |= 0x00000001;
           onChanged();
         }
         if (!other.getSchemaName().isEmpty()) {
           schemaName_ = other.schemaName_;
+          bitField0_ |= 0x00000002;
           onChanged();
         }
         if (!other.getTableName().isEmpty()) {
           tableName_ = other.tableName_;
+          bitField0_ |= 0x00000004;
           onChanged();
         }
         switch (other.getKindCase()) {
@@ -5087,7 +5070,7 @@ public final class Ddl {
             break;
           }
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -5102,17 +5085,66 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Ddl.AlterExpr parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                catalogName_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+              case 18: {
+                schemaName_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000002;
+                break;
+              } // case 18
+              case 26: {
+                tableName_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000004;
+                break;
+              } // case 26
+              case 34: {
+                input.readMessage(
+                    getAddColumnsFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                kindCase_ = 4;
+                break;
+              } // case 34
+              case 42: {
+                input.readMessage(
+                    getDropColumnsFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                kindCase_ = 5;
+                break;
+              } // case 42
+              case 50: {
+                input.readMessage(
+                    getRenameTableFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                kindCase_ = 6;
+                break;
+              } // case 50
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Ddl.AlterExpr) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
       private int kindCase_ = 0;
@@ -5130,6 +5162,7 @@ public final class Ddl {
         return this;
       }
 
+      private int bitField0_;
 
       private java.lang.Object catalogName_ = "";
       /**
@@ -5172,11 +5205,9 @@ public final class Ddl {
        */
       public Builder setCatalogName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         catalogName_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -5185,8 +5216,8 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearCatalogName() {
-        
         catalogName_ = getDefaultInstance().getCatalogName();
+        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -5197,12 +5228,10 @@ public final class Ddl {
        */
       public Builder setCatalogNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         catalogName_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -5248,11 +5277,9 @@ public final class Ddl {
        */
       public Builder setSchemaName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         schemaName_ = value;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -5261,8 +5288,8 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearSchemaName() {
-        
         schemaName_ = getDefaultInstance().getSchemaName();
+        bitField0_ = (bitField0_ & ~0x00000002);
         onChanged();
         return this;
       }
@@ -5273,12 +5300,10 @@ public final class Ddl {
        */
       public Builder setSchemaNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         schemaName_ = value;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -5324,11 +5349,9 @@ public final class Ddl {
        */
       public Builder setTableName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         tableName_ = value;
+        bitField0_ |= 0x00000004;
         onChanged();
         return this;
       }
@@ -5337,8 +5360,8 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearTableName() {
-        
         tableName_ = getDefaultInstance().getTableName();
+        bitField0_ = (bitField0_ & ~0x00000004);
         onChanged();
         return this;
       }
@@ -5349,12 +5372,10 @@ public final class Ddl {
        */
       public Builder setTableNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         tableName_ = value;
+        bitField0_ |= 0x00000004;
         onChanged();
         return this;
       }
@@ -5433,8 +5454,9 @@ public final class Ddl {
         } else {
           if (kindCase_ == 4) {
             addColumnsBuilder_.mergeFrom(value);
+          } else {
+            addColumnsBuilder_.setMessage(value);
           }
-          addColumnsBuilder_.setMessage(value);
         }
         kindCase_ = 4;
         return this;
@@ -5496,7 +5518,7 @@ public final class Ddl {
           kind_ = null;
         }
         kindCase_ = 4;
-        onChanged();;
+        onChanged();
         return addColumnsBuilder_;
       }
 
@@ -5574,8 +5596,9 @@ public final class Ddl {
         } else {
           if (kindCase_ == 5) {
             dropColumnsBuilder_.mergeFrom(value);
+          } else {
+            dropColumnsBuilder_.setMessage(value);
           }
-          dropColumnsBuilder_.setMessage(value);
         }
         kindCase_ = 5;
         return this;
@@ -5637,7 +5660,7 @@ public final class Ddl {
           kind_ = null;
         }
         kindCase_ = 5;
-        onChanged();;
+        onChanged();
         return dropColumnsBuilder_;
       }
 
@@ -5715,8 +5738,9 @@ public final class Ddl {
         } else {
           if (kindCase_ == 6) {
             renameTableBuilder_.mergeFrom(value);
+          } else {
+            renameTableBuilder_.setMessage(value);
           }
-          renameTableBuilder_.setMessage(value);
         }
         kindCase_ = 6;
         return this;
@@ -5778,7 +5802,7 @@ public final class Ddl {
           kind_ = null;
         }
         kindCase_ = 6;
-        onChanged();;
+        onChanged();
         return renameTableBuilder_;
       }
       @java.lang.Override
@@ -5814,7 +5838,18 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new AlterExpr(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
@@ -5904,61 +5939,6 @@ public final class Ddl {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private DropTableExpr(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              catalogName_ = s;
-              break;
-            }
-            case 18: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              schemaName_ = s;
-              break;
-            }
-            case 26: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              tableName_ = s;
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Ddl.internal_static_greptime_v1_DropTableExpr_descriptor;
@@ -5973,7 +5953,8 @@ public final class Ddl {
     }
 
     public static final int CATALOG_NAME_FIELD_NUMBER = 1;
-    private volatile java.lang.Object catalogName_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object catalogName_ = "";
     /**
      * string catalog_name = 1;
      * @return The catalogName.
@@ -6011,7 +5992,8 @@ public final class Ddl {
     }
 
     public static final int SCHEMA_NAME_FIELD_NUMBER = 2;
-    private volatile java.lang.Object schemaName_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object schemaName_ = "";
     /**
      * string schema_name = 2;
      * @return The schemaName.
@@ -6049,7 +6031,8 @@ public final class Ddl {
     }
 
     public static final int TABLE_NAME_FIELD_NUMBER = 3;
-    private volatile java.lang.Object tableName_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object tableName_ = "";
     /**
      * string table_name = 3;
      * @return The tableName.
@@ -6109,7 +6092,7 @@ public final class Ddl {
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tableName_)) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 3, tableName_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -6127,7 +6110,7 @@ public final class Ddl {
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tableName_)) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, tableName_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -6148,7 +6131,7 @@ public final class Ddl {
           .equals(other.getSchemaName())) return false;
       if (!getTableName()
           .equals(other.getTableName())) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -6165,7 +6148,7 @@ public final class Ddl {
       hash = (53 * hash) + getSchemaName().hashCode();
       hash = (37 * hash) + TABLE_NAME_FIELD_NUMBER;
       hash = (53 * hash) + getTableName().hashCode();
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -6282,28 +6265,21 @@ public final class Ddl {
 
       // Construct using io.greptime.v1.Ddl.DropTableExpr.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
+        bitField0_ = 0;
         catalogName_ = "";
-
         schemaName_ = "";
-
         tableName_ = "";
-
         return this;
       }
 
@@ -6330,13 +6306,24 @@ public final class Ddl {
       @java.lang.Override
       public io.greptime.v1.Ddl.DropTableExpr buildPartial() {
         io.greptime.v1.Ddl.DropTableExpr result = new io.greptime.v1.Ddl.DropTableExpr(this);
-        result.catalogName_ = catalogName_;
-        result.schemaName_ = schemaName_;
-        result.tableName_ = tableName_;
+        if (bitField0_ != 0) { buildPartial0(result); }
         onBuilt();
         return result;
       }
 
+      private void buildPartial0(io.greptime.v1.Ddl.DropTableExpr result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.catalogName_ = catalogName_;
+        }
+        if (((from_bitField0_ & 0x00000002) != 0)) {
+          result.schemaName_ = schemaName_;
+        }
+        if (((from_bitField0_ & 0x00000004) != 0)) {
+          result.tableName_ = tableName_;
+        }
+      }
+
       @java.lang.Override
       public Builder clone() {
         return super.clone();
@@ -6383,17 +6370,20 @@ public final class Ddl {
         if (other == io.greptime.v1.Ddl.DropTableExpr.getDefaultInstance()) return this;
         if (!other.getCatalogName().isEmpty()) {
           catalogName_ = other.catalogName_;
+          bitField0_ |= 0x00000001;
           onChanged();
         }
         if (!other.getSchemaName().isEmpty()) {
           schemaName_ = other.schemaName_;
+          bitField0_ |= 0x00000002;
           onChanged();
         }
         if (!other.getTableName().isEmpty()) {
           tableName_ = other.tableName_;
+          bitField0_ |= 0x00000004;
           onChanged();
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -6408,19 +6398,48 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Ddl.DropTableExpr parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                catalogName_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+              case 18: {
+                schemaName_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000002;
+                break;
+              } // case 18
+              case 26: {
+                tableName_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000004;
+                break;
+              } // case 26
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Ddl.DropTableExpr) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
+      private int bitField0_;
 
       private java.lang.Object catalogName_ = "";
       /**
@@ -6463,11 +6482,9 @@ public final class Ddl {
        */
       public Builder setCatalogName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         catalogName_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -6476,8 +6493,8 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearCatalogName() {
-        
         catalogName_ = getDefaultInstance().getCatalogName();
+        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -6488,12 +6505,10 @@ public final class Ddl {
        */
       public Builder setCatalogNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         catalogName_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -6539,11 +6554,9 @@ public final class Ddl {
        */
       public Builder setSchemaName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         schemaName_ = value;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -6552,8 +6565,8 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearSchemaName() {
-        
         schemaName_ = getDefaultInstance().getSchemaName();
+        bitField0_ = (bitField0_ & ~0x00000002);
         onChanged();
         return this;
       }
@@ -6564,12 +6577,10 @@ public final class Ddl {
        */
       public Builder setSchemaNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         schemaName_ = value;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -6615,11 +6626,9 @@ public final class Ddl {
        */
       public Builder setTableName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         tableName_ = value;
+        bitField0_ |= 0x00000004;
         onChanged();
         return this;
       }
@@ -6628,8 +6637,8 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearTableName() {
-        
         tableName_ = getDefaultInstance().getTableName();
+        bitField0_ = (bitField0_ & ~0x00000004);
         onChanged();
         return this;
       }
@@ -6640,12 +6649,10 @@ public final class Ddl {
        */
       public Builder setTableNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         tableName_ = value;
+        bitField0_ |= 0x00000004;
         onChanged();
         return this;
       }
@@ -6682,7 +6689,18 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new DropTableExpr(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
@@ -6783,67 +6801,6 @@ public final class Ddl {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private FlushTableExpr(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      int mutable_bitField0_ = 0;
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              catalogName_ = s;
-              break;
-            }
-            case 18: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              schemaName_ = s;
-              break;
-            }
-            case 26: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              tableName_ = s;
-              break;
-            }
-            case 32: {
-              bitField0_ |= 0x00000001;
-              regionId_ = input.readUInt32();
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Ddl.internal_static_greptime_v1_FlushTableExpr_descriptor;
@@ -6859,7 +6816,8 @@ public final class Ddl {
 
     private int bitField0_;
     public static final int CATALOG_NAME_FIELD_NUMBER = 1;
-    private volatile java.lang.Object catalogName_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object catalogName_ = "";
     /**
      * string catalog_name = 1;
      * @return The catalogName.
@@ -6897,7 +6855,8 @@ public final class Ddl {
     }
 
     public static final int SCHEMA_NAME_FIELD_NUMBER = 2;
-    private volatile java.lang.Object schemaName_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object schemaName_ = "";
     /**
      * string schema_name = 2;
      * @return The schemaName.
@@ -6935,7 +6894,8 @@ public final class Ddl {
     }
 
     public static final int TABLE_NAME_FIELD_NUMBER = 3;
-    private volatile java.lang.Object tableName_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object tableName_ = "";
     /**
      * string table_name = 3;
      * @return The tableName.
@@ -6973,7 +6933,7 @@ public final class Ddl {
     }
 
     public static final int REGION_ID_FIELD_NUMBER = 4;
-    private int regionId_;
+    private int regionId_ = 0;
     /**
      * optional uint32 region_id = 4;
      * @return Whether the regionId field is set.
@@ -7017,7 +6977,7 @@ public final class Ddl {
       if (((bitField0_ & 0x00000001) != 0)) {
         output.writeUInt32(4, regionId_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -7039,7 +6999,7 @@ public final class Ddl {
         size += com.google.protobuf.CodedOutputStream
           .computeUInt32Size(4, regionId_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -7065,7 +7025,7 @@ public final class Ddl {
         if (getRegionId()
             != other.getRegionId()) return false;
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -7086,7 +7046,7 @@ public final class Ddl {
         hash = (37 * hash) + REGION_ID_FIELD_NUMBER;
         hash = (53 * hash) + getRegionId();
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -7203,30 +7163,22 @@ public final class Ddl {
 
       // Construct using io.greptime.v1.Ddl.FlushTableExpr.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
+        bitField0_ = 0;
         catalogName_ = "";
-
         schemaName_ = "";
-
         tableName_ = "";
-
         regionId_ = 0;
-        bitField0_ = (bitField0_ & ~0x00000001);
         return this;
       }
 
@@ -7253,18 +7205,28 @@ public final class Ddl {
       @java.lang.Override
       public io.greptime.v1.Ddl.FlushTableExpr buildPartial() {
         io.greptime.v1.Ddl.FlushTableExpr result = new io.greptime.v1.Ddl.FlushTableExpr(this);
+        if (bitField0_ != 0) { buildPartial0(result); }
+        onBuilt();
+        return result;
+      }
+
+      private void buildPartial0(io.greptime.v1.Ddl.FlushTableExpr result) {
         int from_bitField0_ = bitField0_;
-        int to_bitField0_ = 0;
-        result.catalogName_ = catalogName_;
-        result.schemaName_ = schemaName_;
-        result.tableName_ = tableName_;
         if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.catalogName_ = catalogName_;
+        }
+        if (((from_bitField0_ & 0x00000002) != 0)) {
+          result.schemaName_ = schemaName_;
+        }
+        if (((from_bitField0_ & 0x00000004) != 0)) {
+          result.tableName_ = tableName_;
+        }
+        int to_bitField0_ = 0;
+        if (((from_bitField0_ & 0x00000008) != 0)) {
           result.regionId_ = regionId_;
           to_bitField0_ |= 0x00000001;
         }
-        result.bitField0_ = to_bitField0_;
-        onBuilt();
-        return result;
+        result.bitField0_ |= to_bitField0_;
       }
 
       @java.lang.Override
@@ -7313,20 +7275,23 @@ public final class Ddl {
         if (other == io.greptime.v1.Ddl.FlushTableExpr.getDefaultInstance()) return this;
         if (!other.getCatalogName().isEmpty()) {
           catalogName_ = other.catalogName_;
+          bitField0_ |= 0x00000001;
           onChanged();
         }
         if (!other.getSchemaName().isEmpty()) {
           schemaName_ = other.schemaName_;
+          bitField0_ |= 0x00000002;
           onChanged();
         }
         if (!other.getTableName().isEmpty()) {
           tableName_ = other.tableName_;
+          bitField0_ |= 0x00000004;
           onChanged();
         }
         if (other.hasRegionId()) {
           setRegionId(other.getRegionId());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -7341,17 +7306,50 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Ddl.FlushTableExpr parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                catalogName_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+              case 18: {
+                schemaName_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000002;
+                break;
+              } // case 18
+              case 26: {
+                tableName_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000004;
+                break;
+              } // case 26
+              case 32: {
+                regionId_ = input.readUInt32();
+                bitField0_ |= 0x00000008;
+                break;
+              } // case 32
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Ddl.FlushTableExpr) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
       private int bitField0_;
@@ -7397,11 +7395,9 @@ public final class Ddl {
        */
       public Builder setCatalogName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         catalogName_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -7410,8 +7406,8 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearCatalogName() {
-        
         catalogName_ = getDefaultInstance().getCatalogName();
+        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -7422,12 +7418,10 @@ public final class Ddl {
        */
       public Builder setCatalogNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         catalogName_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -7473,11 +7467,9 @@ public final class Ddl {
        */
       public Builder setSchemaName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         schemaName_ = value;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -7486,8 +7478,8 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearSchemaName() {
-        
         schemaName_ = getDefaultInstance().getSchemaName();
+        bitField0_ = (bitField0_ & ~0x00000002);
         onChanged();
         return this;
       }
@@ -7498,12 +7490,10 @@ public final class Ddl {
        */
       public Builder setSchemaNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         schemaName_ = value;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -7549,11 +7539,9 @@ public final class Ddl {
        */
       public Builder setTableName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         tableName_ = value;
+        bitField0_ |= 0x00000004;
         onChanged();
         return this;
       }
@@ -7562,8 +7550,8 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearTableName() {
-        
         tableName_ = getDefaultInstance().getTableName();
+        bitField0_ = (bitField0_ & ~0x00000004);
         onChanged();
         return this;
       }
@@ -7574,12 +7562,10 @@ public final class Ddl {
        */
       public Builder setTableNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         tableName_ = value;
+        bitField0_ |= 0x00000004;
         onChanged();
         return this;
       }
@@ -7591,7 +7577,7 @@ public final class Ddl {
        */
       @java.lang.Override
       public boolean hasRegionId() {
-        return ((bitField0_ & 0x00000001) != 0);
+        return ((bitField0_ & 0x00000008) != 0);
       }
       /**
        * optional uint32 region_id = 4;
@@ -7607,8 +7593,9 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder setRegionId(int value) {
-        bitField0_ |= 0x00000001;
+        
         regionId_ = value;
+        bitField0_ |= 0x00000008;
         onChanged();
         return this;
       }
@@ -7617,7 +7604,7 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearRegionId() {
-        bitField0_ = (bitField0_ & ~0x00000001);
+        bitField0_ = (bitField0_ & ~0x00000008);
         regionId_ = 0;
         onChanged();
         return this;
@@ -7655,7 +7642,18 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new FlushTableExpr(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
@@ -7733,54 +7731,6 @@ public final class Ddl {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private CreateDatabaseExpr(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              databaseName_ = s;
-              break;
-            }
-            case 16: {
-
-              createIfNotExists_ = input.readBool();
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Ddl.internal_static_greptime_v1_CreateDatabaseExpr_descriptor;
@@ -7795,7 +7745,8 @@ public final class Ddl {
     }
 
     public static final int DATABASE_NAME_FIELD_NUMBER = 1;
-    private volatile java.lang.Object databaseName_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object databaseName_ = "";
     /**
      * 
      *TODO(hl): maybe rename to schema_name?
@@ -7841,7 +7792,7 @@ public final class Ddl {
     }
 
     public static final int CREATE_IF_NOT_EXISTS_FIELD_NUMBER = 2;
-    private boolean createIfNotExists_;
+    private boolean createIfNotExists_ = false;
     /**
      * bool create_if_not_exists = 2;
      * @return The createIfNotExists.
@@ -7871,7 +7822,7 @@ public final class Ddl {
       if (createIfNotExists_ != false) {
         output.writeBool(2, createIfNotExists_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -7887,7 +7838,7 @@ public final class Ddl {
         size += com.google.protobuf.CodedOutputStream
           .computeBoolSize(2, createIfNotExists_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -7906,7 +7857,7 @@ public final class Ddl {
           .equals(other.getDatabaseName())) return false;
       if (getCreateIfNotExists()
           != other.getCreateIfNotExists()) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -7922,7 +7873,7 @@ public final class Ddl {
       hash = (37 * hash) + CREATE_IF_NOT_EXISTS_FIELD_NUMBER;
       hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(
           getCreateIfNotExists());
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -8039,26 +7990,20 @@ public final class Ddl {
 
       // Construct using io.greptime.v1.Ddl.CreateDatabaseExpr.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
+        bitField0_ = 0;
         databaseName_ = "";
-
         createIfNotExists_ = false;
-
         return this;
       }
 
@@ -8085,12 +8030,21 @@ public final class Ddl {
       @java.lang.Override
       public io.greptime.v1.Ddl.CreateDatabaseExpr buildPartial() {
         io.greptime.v1.Ddl.CreateDatabaseExpr result = new io.greptime.v1.Ddl.CreateDatabaseExpr(this);
-        result.databaseName_ = databaseName_;
-        result.createIfNotExists_ = createIfNotExists_;
+        if (bitField0_ != 0) { buildPartial0(result); }
         onBuilt();
         return result;
       }
 
+      private void buildPartial0(io.greptime.v1.Ddl.CreateDatabaseExpr result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.databaseName_ = databaseName_;
+        }
+        if (((from_bitField0_ & 0x00000002) != 0)) {
+          result.createIfNotExists_ = createIfNotExists_;
+        }
+      }
+
       @java.lang.Override
       public Builder clone() {
         return super.clone();
@@ -8137,12 +8091,13 @@ public final class Ddl {
         if (other == io.greptime.v1.Ddl.CreateDatabaseExpr.getDefaultInstance()) return this;
         if (!other.getDatabaseName().isEmpty()) {
           databaseName_ = other.databaseName_;
+          bitField0_ |= 0x00000001;
           onChanged();
         }
         if (other.getCreateIfNotExists() != false) {
           setCreateIfNotExists(other.getCreateIfNotExists());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -8157,19 +8112,43 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Ddl.CreateDatabaseExpr parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                databaseName_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+              case 16: {
+                createIfNotExists_ = input.readBool();
+                bitField0_ |= 0x00000002;
+                break;
+              } // case 16
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Ddl.CreateDatabaseExpr) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
+      private int bitField0_;
 
       private java.lang.Object databaseName_ = "";
       /**
@@ -8224,11 +8203,9 @@ public final class Ddl {
        */
       public Builder setDatabaseName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         databaseName_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -8241,8 +8218,8 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearDatabaseName() {
-        
         databaseName_ = getDefaultInstance().getDatabaseName();
+        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -8257,12 +8234,10 @@ public final class Ddl {
        */
       public Builder setDatabaseNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         databaseName_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -8284,6 +8259,7 @@ public final class Ddl {
       public Builder setCreateIfNotExists(boolean value) {
         
         createIfNotExists_ = value;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -8292,7 +8268,7 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearCreateIfNotExists() {
-        
+        bitField0_ = (bitField0_ & ~0x00000002);
         createIfNotExists_ = false;
         onChanged();
         return this;
@@ -8330,7 +8306,18 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new CreateDatabaseExpr(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
@@ -8406,56 +8393,6 @@ public final class Ddl {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private AddColumns(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      int mutable_bitField0_ = 0;
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                addColumns_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              addColumns_.add(
-                  input.readMessage(io.greptime.v1.Ddl.AddColumn.parser(), extensionRegistry));
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        if (((mutable_bitField0_ & 0x00000001) != 0)) {
-          addColumns_ = java.util.Collections.unmodifiableList(addColumns_);
-        }
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Ddl.internal_static_greptime_v1_AddColumns_descriptor;
@@ -8470,6 +8407,7 @@ public final class Ddl {
     }
 
     public static final int ADD_COLUMNS_FIELD_NUMBER = 1;
+    @SuppressWarnings("serial")
     private java.util.List addColumns_;
     /**
      * repeated .greptime.v1.AddColumn add_columns = 1;
@@ -8526,7 +8464,7 @@ public final class Ddl {
       for (int i = 0; i < addColumns_.size(); i++) {
         output.writeMessage(1, addColumns_.get(i));
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -8539,7 +8477,7 @@ public final class Ddl {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(1, addColumns_.get(i));
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -8556,7 +8494,7 @@ public final class Ddl {
 
       if (!getAddColumnsList()
           .equals(other.getAddColumnsList())) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -8571,7 +8509,7 @@ public final class Ddl {
         hash = (37 * hash) + ADD_COLUMNS_FIELD_NUMBER;
         hash = (53 * hash) + getAddColumnsList().hashCode();
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -8688,29 +8626,25 @@ public final class Ddl {
 
       // Construct using io.greptime.v1.Ddl.AddColumns.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-          getAddColumnsFieldBuilder();
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
+        bitField0_ = 0;
         if (addColumnsBuilder_ == null) {
           addColumns_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000001);
         } else {
+          addColumns_ = null;
           addColumnsBuilder_.clear();
         }
+        bitField0_ = (bitField0_ & ~0x00000001);
         return this;
       }
 
@@ -8737,7 +8671,13 @@ public final class Ddl {
       @java.lang.Override
       public io.greptime.v1.Ddl.AddColumns buildPartial() {
         io.greptime.v1.Ddl.AddColumns result = new io.greptime.v1.Ddl.AddColumns(this);
-        int from_bitField0_ = bitField0_;
+        buildPartialRepeatedFields(result);
+        if (bitField0_ != 0) { buildPartial0(result); }
+        onBuilt();
+        return result;
+      }
+
+      private void buildPartialRepeatedFields(io.greptime.v1.Ddl.AddColumns result) {
         if (addColumnsBuilder_ == null) {
           if (((bitField0_ & 0x00000001) != 0)) {
             addColumns_ = java.util.Collections.unmodifiableList(addColumns_);
@@ -8747,8 +8687,10 @@ public final class Ddl {
         } else {
           result.addColumns_ = addColumnsBuilder_.build();
         }
-        onBuilt();
-        return result;
+      }
+
+      private void buildPartial0(io.greptime.v1.Ddl.AddColumns result) {
+        int from_bitField0_ = bitField0_;
       }
 
       @java.lang.Override
@@ -8821,7 +8763,7 @@ public final class Ddl {
             }
           }
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -8836,17 +8778,43 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Ddl.AddColumns parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                io.greptime.v1.Ddl.AddColumn m =
+                    input.readMessage(
+                        io.greptime.v1.Ddl.AddColumn.parser(),
+                        extensionRegistry);
+                if (addColumnsBuilder_ == null) {
+                  ensureAddColumnsIsMutable();
+                  addColumns_.add(m);
+                } else {
+                  addColumnsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 10
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Ddl.AddColumns) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
       private int bitField0_;
@@ -9123,7 +9091,18 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new AddColumns(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
@@ -9199,56 +9178,6 @@ public final class Ddl {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private DropColumns(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      int mutable_bitField0_ = 0;
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                dropColumns_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              dropColumns_.add(
-                  input.readMessage(io.greptime.v1.Ddl.DropColumn.parser(), extensionRegistry));
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        if (((mutable_bitField0_ & 0x00000001) != 0)) {
-          dropColumns_ = java.util.Collections.unmodifiableList(dropColumns_);
-        }
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Ddl.internal_static_greptime_v1_DropColumns_descriptor;
@@ -9263,6 +9192,7 @@ public final class Ddl {
     }
 
     public static final int DROP_COLUMNS_FIELD_NUMBER = 1;
+    @SuppressWarnings("serial")
     private java.util.List dropColumns_;
     /**
      * repeated .greptime.v1.DropColumn drop_columns = 1;
@@ -9319,7 +9249,7 @@ public final class Ddl {
       for (int i = 0; i < dropColumns_.size(); i++) {
         output.writeMessage(1, dropColumns_.get(i));
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -9332,7 +9262,7 @@ public final class Ddl {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(1, dropColumns_.get(i));
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -9349,7 +9279,7 @@ public final class Ddl {
 
       if (!getDropColumnsList()
           .equals(other.getDropColumnsList())) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -9364,7 +9294,7 @@ public final class Ddl {
         hash = (37 * hash) + DROP_COLUMNS_FIELD_NUMBER;
         hash = (53 * hash) + getDropColumnsList().hashCode();
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -9481,29 +9411,25 @@ public final class Ddl {
 
       // Construct using io.greptime.v1.Ddl.DropColumns.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-          getDropColumnsFieldBuilder();
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
+        bitField0_ = 0;
         if (dropColumnsBuilder_ == null) {
           dropColumns_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000001);
         } else {
+          dropColumns_ = null;
           dropColumnsBuilder_.clear();
         }
+        bitField0_ = (bitField0_ & ~0x00000001);
         return this;
       }
 
@@ -9530,7 +9456,13 @@ public final class Ddl {
       @java.lang.Override
       public io.greptime.v1.Ddl.DropColumns buildPartial() {
         io.greptime.v1.Ddl.DropColumns result = new io.greptime.v1.Ddl.DropColumns(this);
-        int from_bitField0_ = bitField0_;
+        buildPartialRepeatedFields(result);
+        if (bitField0_ != 0) { buildPartial0(result); }
+        onBuilt();
+        return result;
+      }
+
+      private void buildPartialRepeatedFields(io.greptime.v1.Ddl.DropColumns result) {
         if (dropColumnsBuilder_ == null) {
           if (((bitField0_ & 0x00000001) != 0)) {
             dropColumns_ = java.util.Collections.unmodifiableList(dropColumns_);
@@ -9540,8 +9472,10 @@ public final class Ddl {
         } else {
           result.dropColumns_ = dropColumnsBuilder_.build();
         }
-        onBuilt();
-        return result;
+      }
+
+      private void buildPartial0(io.greptime.v1.Ddl.DropColumns result) {
+        int from_bitField0_ = bitField0_;
       }
 
       @java.lang.Override
@@ -9614,7 +9548,7 @@ public final class Ddl {
             }
           }
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -9629,17 +9563,43 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Ddl.DropColumns parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                io.greptime.v1.Ddl.DropColumn m =
+                    input.readMessage(
+                        io.greptime.v1.Ddl.DropColumn.parser(),
+                        extensionRegistry);
+                if (dropColumnsBuilder_ == null) {
+                  ensureDropColumnsIsMutable();
+                  dropColumns_.add(m);
+                } else {
+                  dropColumnsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 10
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Ddl.DropColumns) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
       private int bitField0_;
@@ -9916,7 +9876,18 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new DropColumns(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
@@ -9980,49 +9951,6 @@ public final class Ddl {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private RenameTable(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              newTableName_ = s;
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Ddl.internal_static_greptime_v1_RenameTable_descriptor;
@@ -10037,7 +9965,8 @@ public final class Ddl {
     }
 
     public static final int NEW_TABLE_NAME_FIELD_NUMBER = 1;
-    private volatile java.lang.Object newTableName_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object newTableName_ = "";
     /**
      * string new_table_name = 1;
      * @return The newTableName.
@@ -10091,7 +10020,7 @@ public final class Ddl {
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(newTableName_)) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, newTableName_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -10103,7 +10032,7 @@ public final class Ddl {
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(newTableName_)) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, newTableName_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -10120,7 +10049,7 @@ public final class Ddl {
 
       if (!getNewTableName()
           .equals(other.getNewTableName())) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -10133,7 +10062,7 @@ public final class Ddl {
       hash = (19 * hash) + getDescriptor().hashCode();
       hash = (37 * hash) + NEW_TABLE_NAME_FIELD_NUMBER;
       hash = (53 * hash) + getNewTableName().hashCode();
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -10250,24 +10179,19 @@ public final class Ddl {
 
       // Construct using io.greptime.v1.Ddl.RenameTable.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
+        bitField0_ = 0;
         newTableName_ = "";
-
         return this;
       }
 
@@ -10294,11 +10218,18 @@ public final class Ddl {
       @java.lang.Override
       public io.greptime.v1.Ddl.RenameTable buildPartial() {
         io.greptime.v1.Ddl.RenameTable result = new io.greptime.v1.Ddl.RenameTable(this);
-        result.newTableName_ = newTableName_;
+        if (bitField0_ != 0) { buildPartial0(result); }
         onBuilt();
         return result;
       }
 
+      private void buildPartial0(io.greptime.v1.Ddl.RenameTable result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.newTableName_ = newTableName_;
+        }
+      }
+
       @java.lang.Override
       public Builder clone() {
         return super.clone();
@@ -10345,9 +10276,10 @@ public final class Ddl {
         if (other == io.greptime.v1.Ddl.RenameTable.getDefaultInstance()) return this;
         if (!other.getNewTableName().isEmpty()) {
           newTableName_ = other.newTableName_;
+          bitField0_ |= 0x00000001;
           onChanged();
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -10362,19 +10294,38 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Ddl.RenameTable parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                newTableName_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Ddl.RenameTable) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
+      private int bitField0_;
 
       private java.lang.Object newTableName_ = "";
       /**
@@ -10417,11 +10368,9 @@ public final class Ddl {
        */
       public Builder setNewTableName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         newTableName_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -10430,8 +10379,8 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearNewTableName() {
-        
         newTableName_ = getDefaultInstance().getNewTableName();
+        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -10442,12 +10391,10 @@ public final class Ddl {
        */
       public Builder setNewTableNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         newTableName_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -10484,7 +10431,18 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new RenameTable(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
@@ -10556,61 +10514,6 @@ public final class Ddl {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private AddColumn(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              io.greptime.v1.Columns.ColumnDef.Builder subBuilder = null;
-              if (columnDef_ != null) {
-                subBuilder = columnDef_.toBuilder();
-              }
-              columnDef_ = input.readMessage(io.greptime.v1.Columns.ColumnDef.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(columnDef_);
-                columnDef_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-            case 16: {
-
-              isKey_ = input.readBool();
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Ddl.internal_static_greptime_v1_AddColumn_descriptor;
@@ -10647,11 +10550,11 @@ public final class Ddl {
      */
     @java.lang.Override
     public io.greptime.v1.Columns.ColumnDefOrBuilder getColumnDefOrBuilder() {
-      return getColumnDef();
+      return columnDef_ == null ? io.greptime.v1.Columns.ColumnDef.getDefaultInstance() : columnDef_;
     }
 
     public static final int IS_KEY_FIELD_NUMBER = 2;
-    private boolean isKey_;
+    private boolean isKey_ = false;
     /**
      * bool is_key = 2;
      * @return The isKey.
@@ -10681,7 +10584,7 @@ public final class Ddl {
       if (isKey_ != false) {
         output.writeBool(2, isKey_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -10698,7 +10601,7 @@ public final class Ddl {
         size += com.google.protobuf.CodedOutputStream
           .computeBoolSize(2, isKey_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -10720,7 +10623,7 @@ public final class Ddl {
       }
       if (getIsKey()
           != other.getIsKey()) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -10738,7 +10641,7 @@ public final class Ddl {
       hash = (37 * hash) + IS_KEY_FIELD_NUMBER;
       hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(
           getIsKey());
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -10855,30 +10758,24 @@ public final class Ddl {
 
       // Construct using io.greptime.v1.Ddl.AddColumn.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
-        if (columnDefBuilder_ == null) {
-          columnDef_ = null;
-        } else {
-          columnDef_ = null;
+        bitField0_ = 0;
+        columnDef_ = null;
+        if (columnDefBuilder_ != null) {
+          columnDefBuilder_.dispose();
           columnDefBuilder_ = null;
         }
         isKey_ = false;
-
         return this;
       }
 
@@ -10905,16 +10802,23 @@ public final class Ddl {
       @java.lang.Override
       public io.greptime.v1.Ddl.AddColumn buildPartial() {
         io.greptime.v1.Ddl.AddColumn result = new io.greptime.v1.Ddl.AddColumn(this);
-        if (columnDefBuilder_ == null) {
-          result.columnDef_ = columnDef_;
-        } else {
-          result.columnDef_ = columnDefBuilder_.build();
-        }
-        result.isKey_ = isKey_;
+        if (bitField0_ != 0) { buildPartial0(result); }
         onBuilt();
         return result;
       }
 
+      private void buildPartial0(io.greptime.v1.Ddl.AddColumn result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.columnDef_ = columnDefBuilder_ == null
+              ? columnDef_
+              : columnDefBuilder_.build();
+        }
+        if (((from_bitField0_ & 0x00000002) != 0)) {
+          result.isKey_ = isKey_;
+        }
+      }
+
       @java.lang.Override
       public Builder clone() {
         return super.clone();
@@ -10965,7 +10869,7 @@ public final class Ddl {
         if (other.getIsKey() != false) {
           setIsKey(other.getIsKey());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -10980,19 +10884,45 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Ddl.AddColumn parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                input.readMessage(
+                    getColumnDefFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+              case 16: {
+                isKey_ = input.readBool();
+                bitField0_ |= 0x00000002;
+                break;
+              } // case 16
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Ddl.AddColumn) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
+      private int bitField0_;
 
       private io.greptime.v1.Columns.ColumnDef columnDef_;
       private com.google.protobuf.SingleFieldBuilderV3<
@@ -11002,7 +10932,7 @@ public final class Ddl {
        * @return Whether the columnDef field is set.
        */
       public boolean hasColumnDef() {
-        return columnDefBuilder_ != null || columnDef_ != null;
+        return ((bitField0_ & 0x00000001) != 0);
       }
       /**
        * .greptime.v1.ColumnDef column_def = 1;
@@ -11024,11 +10954,11 @@ public final class Ddl {
             throw new NullPointerException();
           }
           columnDef_ = value;
-          onChanged();
         } else {
           columnDefBuilder_.setMessage(value);
         }
-
+        bitField0_ |= 0x00000001;
+        onChanged();
         return this;
       }
       /**
@@ -11038,11 +10968,11 @@ public final class Ddl {
           io.greptime.v1.Columns.ColumnDef.Builder builderForValue) {
         if (columnDefBuilder_ == null) {
           columnDef_ = builderForValue.build();
-          onChanged();
         } else {
           columnDefBuilder_.setMessage(builderForValue.build());
         }
-
+        bitField0_ |= 0x00000001;
+        onChanged();
         return this;
       }
       /**
@@ -11050,38 +10980,38 @@ public final class Ddl {
        */
       public Builder mergeColumnDef(io.greptime.v1.Columns.ColumnDef value) {
         if (columnDefBuilder_ == null) {
-          if (columnDef_ != null) {
-            columnDef_ =
-              io.greptime.v1.Columns.ColumnDef.newBuilder(columnDef_).mergeFrom(value).buildPartial();
+          if (((bitField0_ & 0x00000001) != 0) &&
+            columnDef_ != null &&
+            columnDef_ != io.greptime.v1.Columns.ColumnDef.getDefaultInstance()) {
+            getColumnDefBuilder().mergeFrom(value);
           } else {
             columnDef_ = value;
           }
-          onChanged();
         } else {
           columnDefBuilder_.mergeFrom(value);
         }
-
+        bitField0_ |= 0x00000001;
+        onChanged();
         return this;
       }
       /**
        * .greptime.v1.ColumnDef column_def = 1;
        */
       public Builder clearColumnDef() {
-        if (columnDefBuilder_ == null) {
-          columnDef_ = null;
-          onChanged();
-        } else {
-          columnDef_ = null;
+        bitField0_ = (bitField0_ & ~0x00000001);
+        columnDef_ = null;
+        if (columnDefBuilder_ != null) {
+          columnDefBuilder_.dispose();
           columnDefBuilder_ = null;
         }
-
+        onChanged();
         return this;
       }
       /**
        * .greptime.v1.ColumnDef column_def = 1;
        */
       public io.greptime.v1.Columns.ColumnDef.Builder getColumnDefBuilder() {
-        
+        bitField0_ |= 0x00000001;
         onChanged();
         return getColumnDefFieldBuilder().getBuilder();
       }
@@ -11130,6 +11060,7 @@ public final class Ddl {
       public Builder setIsKey(boolean value) {
         
         isKey_ = value;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -11138,7 +11069,7 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearIsKey() {
-        
+        bitField0_ = (bitField0_ & ~0x00000002);
         isKey_ = false;
         onChanged();
         return this;
@@ -11176,7 +11107,18 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new AddColumn(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
@@ -11240,49 +11182,6 @@ public final class Ddl {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private DropColumn(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10: {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Ddl.internal_static_greptime_v1_DropColumn_descriptor;
@@ -11297,7 +11196,8 @@ public final class Ddl {
     }
 
     public static final int NAME_FIELD_NUMBER = 1;
-    private volatile java.lang.Object name_;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object name_ = "";
     /**
      * string name = 1;
      * @return The name.
@@ -11351,7 +11251,7 @@ public final class Ddl {
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -11363,7 +11263,7 @@ public final class Ddl {
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -11380,7 +11280,7 @@ public final class Ddl {
 
       if (!getName()
           .equals(other.getName())) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -11393,7 +11293,7 @@ public final class Ddl {
       hash = (19 * hash) + getDescriptor().hashCode();
       hash = (37 * hash) + NAME_FIELD_NUMBER;
       hash = (53 * hash) + getName().hashCode();
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -11510,24 +11410,19 @@ public final class Ddl {
 
       // Construct using io.greptime.v1.Ddl.DropColumn.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
+        bitField0_ = 0;
         name_ = "";
-
         return this;
       }
 
@@ -11554,11 +11449,18 @@ public final class Ddl {
       @java.lang.Override
       public io.greptime.v1.Ddl.DropColumn buildPartial() {
         io.greptime.v1.Ddl.DropColumn result = new io.greptime.v1.Ddl.DropColumn(this);
-        result.name_ = name_;
+        if (bitField0_ != 0) { buildPartial0(result); }
         onBuilt();
         return result;
       }
 
+      private void buildPartial0(io.greptime.v1.Ddl.DropColumn result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.name_ = name_;
+        }
+      }
+
       @java.lang.Override
       public Builder clone() {
         return super.clone();
@@ -11605,9 +11507,10 @@ public final class Ddl {
         if (other == io.greptime.v1.Ddl.DropColumn.getDefaultInstance()) return this;
         if (!other.getName().isEmpty()) {
           name_ = other.name_;
+          bitField0_ |= 0x00000001;
           onChanged();
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -11622,19 +11525,38 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Ddl.DropColumn parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                name_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Ddl.DropColumn) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
+      private int bitField0_;
 
       private java.lang.Object name_ = "";
       /**
@@ -11677,11 +11599,9 @@ public final class Ddl {
        */
       public Builder setName(
           java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  
+        if (value == null) { throw new NullPointerException(); }
         name_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -11690,8 +11610,8 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearName() {
-        
         name_ = getDefaultInstance().getName();
+        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -11702,12 +11622,10 @@ public final class Ddl {
        */
       public Builder setNameBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  checkByteStringIsUtf8(value);
-        
+        if (value == null) { throw new NullPointerException(); }
+        checkByteStringIsUtf8(value);
         name_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -11744,7 +11662,18 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new DropColumn(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
@@ -11801,48 +11730,6 @@ public final class Ddl {
     getUnknownFields() {
       return this.unknownFields;
     }
-    private TableId(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 8: {
-
-              id_ = input.readUInt32();
-              break;
-            }
-            default: {
-              if (!parseUnknownField(
-                  input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(
-            e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Ddl.internal_static_greptime_v1_TableId_descriptor;
@@ -11857,7 +11744,7 @@ public final class Ddl {
     }
 
     public static final int ID_FIELD_NUMBER = 1;
-    private int id_;
+    private int id_ = 0;
     /**
      * uint32 id = 1;
      * @return The id.
@@ -11884,7 +11771,7 @@ public final class Ddl {
       if (id_ != 0) {
         output.writeUInt32(1, id_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -11897,7 +11784,7 @@ public final class Ddl {
         size += com.google.protobuf.CodedOutputStream
           .computeUInt32Size(1, id_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -11914,7 +11801,7 @@ public final class Ddl {
 
       if (getId()
           != other.getId()) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -11927,7 +11814,7 @@ public final class Ddl {
       hash = (19 * hash) + getDescriptor().hashCode();
       hash = (37 * hash) + ID_FIELD_NUMBER;
       hash = (53 * hash) + getId();
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -12044,24 +11931,19 @@ public final class Ddl {
 
       // Construct using io.greptime.v1.Ddl.TableId.newBuilder()
       private Builder() {
-        maybeForceBuilderInitialization();
+
       }
 
       private Builder(
           com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3
-                .alwaysUseFieldBuilders) {
-        }
+
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
+        bitField0_ = 0;
         id_ = 0;
-
         return this;
       }
 
@@ -12088,11 +11970,18 @@ public final class Ddl {
       @java.lang.Override
       public io.greptime.v1.Ddl.TableId buildPartial() {
         io.greptime.v1.Ddl.TableId result = new io.greptime.v1.Ddl.TableId(this);
-        result.id_ = id_;
+        if (bitField0_ != 0) { buildPartial0(result); }
         onBuilt();
         return result;
       }
 
+      private void buildPartial0(io.greptime.v1.Ddl.TableId result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.id_ = id_;
+        }
+      }
+
       @java.lang.Override
       public Builder clone() {
         return super.clone();
@@ -12140,7 +12029,7 @@ public final class Ddl {
         if (other.getId() != 0) {
           setId(other.getId());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -12155,19 +12044,38 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        io.greptime.v1.Ddl.TableId parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 8: {
+                id_ = input.readUInt32();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 8
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (io.greptime.v1.Ddl.TableId) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
+      private int bitField0_;
 
       private int id_ ;
       /**
@@ -12186,6 +12094,7 @@ public final class Ddl {
       public Builder setId(int value) {
         
         id_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -12194,7 +12103,7 @@ public final class Ddl {
        * @return This builder for chaining.
        */
       public Builder clearId() {
-        
+        bitField0_ = (bitField0_ & ~0x00000001);
         id_ = 0;
         onChanged();
         return this;
@@ -12232,7 +12141,18 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        return new TableId(input, extensionRegistry);
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
       }
     };
 
@@ -12334,7 +12254,7 @@ public final class Ddl {
       "\030\003 \001(\0132\026.greptime.v1.AlterExprH\000\0220\n\ndrop" +
       "_table\030\004 \001(\0132\032.greptime.v1.DropTableExpr" +
       "H\000\0222\n\013flush_table\030\005 \001(\0132\033.greptime.v1.Fl" +
-      "ushTableExprH\000B\006\n\004expr\"\213\003\n\017CreateTableEx" +
+      "ushTableExprH\000B\006\n\004expr\"\233\003\n\017CreateTableEx" +
       "pr\022\024\n\014catalog_name\030\001 \001(\t\022\023\n\013schema_name\030" +
       "\002 \001(\t\022\022\n\ntable_name\030\003 \001(\t\022\014\n\004desc\030\004 \001(\t\022" +
       "+\n\013column_defs\030\005 \003(\0132\026.greptime.v1.Colum" +
@@ -12343,30 +12263,30 @@ public final class Ddl {
       "table_options\030\t \003(\0132..greptime.v1.Create" +
       "TableExpr.TableOptionsEntry\022&\n\010table_id\030" +
       "\n \001(\0132\024.greptime.v1.TableId\022\022\n\nregion_id" +
-      "s\030\013 \003(\r\0323\n\021TableOptionsEntry\022\013\n\003key\030\001 \001(" +
-      "\t\022\r\n\005value\030\002 \001(\t:\0028\001\"\346\001\n\tAlterExpr\022\024\n\014ca" +
-      "talog_name\030\001 \001(\t\022\023\n\013schema_name\030\002 \001(\t\022\022\n" +
-      "\ntable_name\030\003 \001(\t\022.\n\013add_columns\030\004 \001(\0132\027" +
-      ".greptime.v1.AddColumnsH\000\0220\n\014drop_column" +
-      "s\030\005 \001(\0132\030.greptime.v1.DropColumnsH\000\0220\n\014r" +
-      "ename_table\030\006 \001(\0132\030.greptime.v1.RenameTa" +
-      "bleH\000B\006\n\004kind\"N\n\rDropTableExpr\022\024\n\014catalo" +
-      "g_name\030\001 \001(\t\022\023\n\013schema_name\030\002 \001(\t\022\022\n\ntab" +
-      "le_name\030\003 \001(\t\"u\n\016FlushTableExpr\022\024\n\014catal" +
-      "og_name\030\001 \001(\t\022\023\n\013schema_name\030\002 \001(\t\022\022\n\nta" +
-      "ble_name\030\003 \001(\t\022\026\n\tregion_id\030\004 \001(\rH\000\210\001\001B\014" +
-      "\n\n_region_id\"I\n\022CreateDatabaseExpr\022\025\n\rda" +
-      "tabase_name\030\001 \001(\t\022\034\n\024create_if_not_exist" +
-      "s\030\002 \001(\010\"9\n\nAddColumns\022+\n\013add_columns\030\001 \003" +
-      "(\0132\026.greptime.v1.AddColumn\"<\n\013DropColumn" +
-      "s\022-\n\014drop_columns\030\001 \003(\0132\027.greptime.v1.Dr" +
-      "opColumn\"%\n\013RenameTable\022\026\n\016new_table_nam" +
-      "e\030\001 \001(\t\"G\n\tAddColumn\022*\n\ncolumn_def\030\001 \001(\013" +
-      "2\026.greptime.v1.ColumnDef\022\016\n\006is_key\030\002 \001(\010" +
-      "\"\032\n\nDropColumn\022\014\n\004name\030\001 \001(\t\"\025\n\007TableId\022" +
-      "\n\n\002id\030\001 \001(\rBL\n\016io.greptime.v1B\003DdlZ5gith" +
-      "ub.com/GreptimeTeam/greptime-proto/go/gr" +
-      "eptime/v1b\006proto3"
+      "s\030\013 \003(\r\022\016\n\006engine\030\014 \001(\t\0323\n\021TableOptionsE" +
+      "ntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"\346\001\n" +
+      "\tAlterExpr\022\024\n\014catalog_name\030\001 \001(\t\022\023\n\013sche" +
+      "ma_name\030\002 \001(\t\022\022\n\ntable_name\030\003 \001(\t\022.\n\013add" +
+      "_columns\030\004 \001(\0132\027.greptime.v1.AddColumnsH" +
+      "\000\0220\n\014drop_columns\030\005 \001(\0132\030.greptime.v1.Dr" +
+      "opColumnsH\000\0220\n\014rename_table\030\006 \001(\0132\030.grep" +
+      "time.v1.RenameTableH\000B\006\n\004kind\"N\n\rDropTab" +
+      "leExpr\022\024\n\014catalog_name\030\001 \001(\t\022\023\n\013schema_n" +
+      "ame\030\002 \001(\t\022\022\n\ntable_name\030\003 \001(\t\"u\n\016FlushTa" +
+      "bleExpr\022\024\n\014catalog_name\030\001 \001(\t\022\023\n\013schema_" +
+      "name\030\002 \001(\t\022\022\n\ntable_name\030\003 \001(\t\022\026\n\tregion" +
+      "_id\030\004 \001(\rH\000\210\001\001B\014\n\n_region_id\"I\n\022CreateDa" +
+      "tabaseExpr\022\025\n\rdatabase_name\030\001 \001(\t\022\034\n\024cre" +
+      "ate_if_not_exists\030\002 \001(\010\"9\n\nAddColumns\022+\n" +
+      "\013add_columns\030\001 \003(\0132\026.greptime.v1.AddColu" +
+      "mn\"<\n\013DropColumns\022-\n\014drop_columns\030\001 \003(\0132" +
+      "\027.greptime.v1.DropColumn\"%\n\013RenameTable\022" +
+      "\026\n\016new_table_name\030\001 \001(\t\"G\n\tAddColumn\022*\n\n" +
+      "column_def\030\001 \001(\0132\026.greptime.v1.ColumnDef" +
+      "\022\016\n\006is_key\030\002 \001(\010\"\032\n\nDropColumn\022\014\n\004name\030\001" +
+      " \001(\t\"\025\n\007TableId\022\n\n\002id\030\001 \001(\rBL\n\016io.grepti" +
+      "me.v1B\003DdlZ5github.com/GreptimeTeam/grep" +
+      "time-proto/go/greptime/v1b\006proto3"
     };
     descriptor = com.google.protobuf.Descriptors.FileDescriptor
       .internalBuildGeneratedFileFrom(descriptorData,
@@ -12384,7 +12304,7 @@ public final class Ddl {
     internal_static_greptime_v1_CreateTableExpr_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
         internal_static_greptime_v1_CreateTableExpr_descriptor,
-        new java.lang.String[] { "CatalogName", "SchemaName", "TableName", "Desc", "ColumnDefs", "TimeIndex", "PrimaryKeys", "CreateIfNotExists", "TableOptions", "TableId", "RegionIds", });
+        new java.lang.String[] { "CatalogName", "SchemaName", "TableName", "Desc", "ColumnDefs", "TimeIndex", "PrimaryKeys", "CreateIfNotExists", "TableOptions", "TableId", "RegionIds", "Engine", });
     internal_static_greptime_v1_CreateTableExpr_TableOptionsEntry_descriptor =
       internal_static_greptime_v1_CreateTableExpr_descriptor.getNestedTypes().get(0);
     internal_static_greptime_v1_CreateTableExpr_TableOptionsEntry_fieldAccessorTable = new
diff --git a/proto/greptime/v1/database.proto b/proto/greptime/v1/database.proto
index c0db46c..e77c7c9 100644
--- a/proto/greptime/v1/database.proto
+++ b/proto/greptime/v1/database.proto
@@ -23,6 +23,7 @@ message GreptimeRequest {
     InsertRequest insert = 2;
     QueryRequest query = 3;
     DdlRequest ddl = 4;
+    DeleteRequest delete = 5;
   }
 }
 
@@ -55,3 +56,17 @@ message InsertRequest {
   // The region number of current insert request.
   uint32 region_number = 5;
 }
+
+message DeleteRequest {
+  // The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+  string table_name = 1;
+
+  // The region number of current delete request.
+  uint32 region_number = 2;
+
+  // The data to delete, indexed by key columns.
+  repeated Column key_columns = 3;
+
+  // The row count of all columns above.
+  uint32 row_count = 4;
+}