diff --git a/go/greptime/v1/ddl.pb.go b/go/greptime/v1/ddl.pb.go
index 2378bf4..5db7bd4 100644
--- a/go/greptime/v1/ddl.pb.go
+++ b/go/greptime/v1/ddl.pb.go
@@ -34,6 +34,52 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+type AddColumn_Location_LocationType int32
+
+const (
+	AddColumn_Location_FIRST AddColumn_Location_LocationType = 0
+	AddColumn_Location_AFTER AddColumn_Location_LocationType = 1
+)
+
+// Enum value maps for AddColumn_Location_LocationType.
+var (
+	AddColumn_Location_LocationType_name = map[int32]string{
+		0: "FIRST",
+		1: "AFTER",
+	}
+	AddColumn_Location_LocationType_value = map[string]int32{
+		"FIRST": 0,
+		"AFTER": 1,
+	}
+)
+
+func (x AddColumn_Location_LocationType) Enum() *AddColumn_Location_LocationType {
+	p := new(AddColumn_Location_LocationType)
+	*p = x
+	return p
+}
+
+func (x AddColumn_Location_LocationType) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (AddColumn_Location_LocationType) Descriptor() protoreflect.EnumDescriptor {
+	return file_greptime_v1_ddl_proto_enumTypes[0].Descriptor()
+}
+
+func (AddColumn_Location_LocationType) Type() protoreflect.EnumType {
+	return &file_greptime_v1_ddl_proto_enumTypes[0]
+}
+
+func (x AddColumn_Location_LocationType) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Use AddColumn_Location_LocationType.Descriptor instead.
+func (AddColumn_Location_LocationType) EnumDescriptor() ([]byte, []int) {
+	return file_greptime_v1_ddl_proto_rawDescGZIP(), []int{9, 0, 0}
+}
+
 // "Data Definition Language" requests, that create, modify or delete the
 // database structures but not the data. `DdlRequest` could carry more
 // information than plain SQL, for example, the "table_id" in `CreateTableExpr`.
@@ -751,8 +797,9 @@ type AddColumn struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	ColumnDef *ColumnDef `protobuf:"bytes,1,opt,name=column_def,json=columnDef,proto3" json:"column_def,omitempty"`
-	IsKey     bool       `protobuf:"varint,2,opt,name=is_key,json=isKey,proto3" json:"is_key,omitempty"`
+	ColumnDef *ColumnDef          `protobuf:"bytes,1,opt,name=column_def,json=columnDef,proto3" json:"column_def,omitempty"`
+	IsKey     bool                `protobuf:"varint,2,opt,name=is_key,json=isKey,proto3" json:"is_key,omitempty"`
+	Location  *AddColumn_Location `protobuf:"bytes,3,opt,name=location,proto3" json:"location,omitempty"`
 }
 
 func (x *AddColumn) Reset() {
@@ -801,6 +848,13 @@ func (x *AddColumn) GetIsKey() bool {
 	return false
 }
 
+func (x *AddColumn) GetLocation() *AddColumn_Location {
+	if x != nil {
+		return x.Location
+	}
+	return nil
+}
+
 type DropColumn struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -895,6 +949,61 @@ func (x *TableId) GetId() uint32 {
 	return 0
 }
 
+type AddColumn_Location struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	LocationType    AddColumn_Location_LocationType `protobuf:"varint,1,opt,name=location_type,json=locationType,proto3,enum=greptime.v1.AddColumn_Location_LocationType" json:"location_type,omitempty"`
+	AfterCloumnName string                          `protobuf:"bytes,2,opt,name=after_cloumn_name,json=afterCloumnName,proto3" json:"after_cloumn_name,omitempty"`
+}
+
+func (x *AddColumn_Location) Reset() {
+	*x = AddColumn_Location{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_greptime_v1_ddl_proto_msgTypes[13]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *AddColumn_Location) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AddColumn_Location) ProtoMessage() {}
+
+func (x *AddColumn_Location) ProtoReflect() protoreflect.Message {
+	mi := &file_greptime_v1_ddl_proto_msgTypes[13]
+	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 AddColumn_Location.ProtoReflect.Descriptor instead.
+func (*AddColumn_Location) Descriptor() ([]byte, []int) {
+	return file_greptime_v1_ddl_proto_rawDescGZIP(), []int{9, 0}
+}
+
+func (x *AddColumn_Location) GetLocationType() AddColumn_Location_LocationType {
+	if x != nil {
+		return x.LocationType
+	}
+	return AddColumn_Location_FIRST
+}
+
+func (x *AddColumn_Location) GetAfterCloumnName() string {
+	if x != nil {
+		return x.AfterCloumnName
+	}
+	return ""
+}
+
 var File_greptime_v1_ddl_proto protoreflect.FileDescriptor
 
 var file_greptime_v1_ddl_proto_rawDesc = []byte{
@@ -1014,13 +1123,28 @@ var file_greptime_v1_ddl_proto_rawDesc = []byte{
 	0x73, 0x22, 0x33, 0x0a, 0x0b, 0x52, 0x65, 0x6e, 0x61, 0x6d, 0x65, 0x54, 0x61, 0x62, 0x6c, 0x65,
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-	0x09, 0x63, 0x6f, 0x6c, 0x75, 0x6d, 0x6e, 0x44, 0x65, 0x66, 0x12, 0x15, 0x0a, 0x06, 0x69, 0x73,
-	0x5f, 0x6b, 0x65, 0x79, 0x18, 0x02, 0x20, 0x01, 0x28, 0x08, 0x52, 0x05, 0x69, 0x73, 0x4b, 0x65,
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+	0x6c, 0x65, 0x4e, 0x61, 0x6d, 0x65, 0x22, 0xc8, 0x02, 0x0a, 0x09, 0x41, 0x64, 0x64, 0x43, 0x6f,
+	0x6c, 0x75, 0x6d, 0x6e, 0x12, 0x35, 0x0a, 0x0a, 0x63, 0x6f, 0x6c, 0x75, 0x6d, 0x6e, 0x5f, 0x64,
+	0x65, 0x66, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x16, 0x2e, 0x67, 0x72, 0x65, 0x70, 0x74,
+	0x69, 0x6d, 0x65, 0x2e, 0x76, 0x31, 0x2e, 0x43, 0x6f, 0x6c, 0x75, 0x6d, 0x6e, 0x44, 0x65, 0x66,
+	0x52, 0x09, 0x63, 0x6f, 0x6c, 0x75, 0x6d, 0x6e, 0x44, 0x65, 0x66, 0x12, 0x15, 0x0a, 0x06, 0x69,
+	0x73, 0x5f, 0x6b, 0x65, 0x79, 0x18, 0x02, 0x20, 0x01, 0x28, 0x08, 0x52, 0x05, 0x69, 0x73, 0x4b,
+	0x65, 0x79, 0x12, 0x3b, 0x0a, 0x08, 0x6c, 0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x03,
+	0x20, 0x01, 0x28, 0x0b, 0x32, 0x1f, 0x2e, 0x67, 0x72, 0x65, 0x70, 0x74, 0x69, 0x6d, 0x65, 0x2e,
+	0x76, 0x31, 0x2e, 0x41, 0x64, 0x64, 0x43, 0x6f, 0x6c, 0x75, 0x6d, 0x6e, 0x2e, 0x4c, 0x6f, 0x63,
+	0x61, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x08, 0x6c, 0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x1a,
+	0xaf, 0x01, 0x0a, 0x08, 0x4c, 0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x51, 0x0a, 0x0d,
+	0x6c, 0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x5f, 0x74, 0x79, 0x70, 0x65, 0x18, 0x01, 0x20,
+	0x01, 0x28, 0x0e, 0x32, 0x2c, 0x2e, 0x67, 0x72, 0x65, 0x70, 0x74, 0x69, 0x6d, 0x65, 0x2e, 0x76,
+	0x31, 0x2e, 0x41, 0x64, 0x64, 0x43, 0x6f, 0x6c, 0x75, 0x6d, 0x6e, 0x2e, 0x4c, 0x6f, 0x63, 0x61,
+	0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x4c, 0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x54, 0x79, 0x70,
+	0x65, 0x52, 0x0c, 0x6c, 0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x54, 0x79, 0x70, 0x65, 0x12,
+	0x2a, 0x0a, 0x11, 0x61, 0x66, 0x74, 0x65, 0x72, 0x5f, 0x63, 0x6c, 0x6f, 0x75, 0x6d, 0x6e, 0x5f,
+	0x6e, 0x61, 0x6d, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0f, 0x61, 0x66, 0x74, 0x65,
+	0x72, 0x43, 0x6c, 0x6f, 0x75, 0x6d, 0x6e, 0x4e, 0x61, 0x6d, 0x65, 0x22, 0x24, 0x0a, 0x0c, 0x4c,
+	0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x54, 0x79, 0x70, 0x65, 0x12, 0x09, 0x0a, 0x05, 0x46,
+	0x49, 0x52, 0x53, 0x54, 0x10, 0x00, 0x12, 0x09, 0x0a, 0x05, 0x41, 0x46, 0x54, 0x45, 0x52, 0x10,
+	0x01, 0x22, 0x20, 0x0a, 0x0a, 0x44, 0x72, 0x6f, 0x70, 0x43, 0x6f, 0x6c, 0x75, 0x6d, 0x6e, 0x12,
 	0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6e,
 	0x61, 0x6d, 0x65, 0x22, 0x19, 0x0a, 0x07, 0x54, 0x61, 0x62, 0x6c, 0x65, 0x49, 0x64, 0x12, 0x0e,
 	0x0a, 0x02, 0x69, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x02, 0x69, 0x64, 0x42, 0x4c,
@@ -1044,43 +1168,48 @@ func file_greptime_v1_ddl_proto_rawDescGZIP() []byte {
 	return file_greptime_v1_ddl_proto_rawDescData
 }
 
-var file_greptime_v1_ddl_proto_msgTypes = make([]protoimpl.MessageInfo, 13)
+var file_greptime_v1_ddl_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
+var file_greptime_v1_ddl_proto_msgTypes = make([]protoimpl.MessageInfo, 14)
 var file_greptime_v1_ddl_proto_goTypes = []interface{}{
-	(*DdlRequest)(nil),         // 0: greptime.v1.DdlRequest
-	(*CreateTableExpr)(nil),    // 1: greptime.v1.CreateTableExpr
-	(*AlterExpr)(nil),          // 2: greptime.v1.AlterExpr
-	(*DropTableExpr)(nil),      // 3: greptime.v1.DropTableExpr
-	(*FlushTableExpr)(nil),     // 4: greptime.v1.FlushTableExpr
-	(*CreateDatabaseExpr)(nil), // 5: greptime.v1.CreateDatabaseExpr
-	(*AddColumns)(nil),         // 6: greptime.v1.AddColumns
-	(*DropColumns)(nil),        // 7: greptime.v1.DropColumns
-	(*RenameTable)(nil),        // 8: greptime.v1.RenameTable
-	(*AddColumn)(nil),          // 9: greptime.v1.AddColumn
-	(*DropColumn)(nil),         // 10: greptime.v1.DropColumn
-	(*TableId)(nil),            // 11: greptime.v1.TableId
-	nil,                        // 12: greptime.v1.CreateTableExpr.TableOptionsEntry
-	(*ColumnDef)(nil),          // 13: greptime.v1.ColumnDef
+	(AddColumn_Location_LocationType)(0), // 0: greptime.v1.AddColumn.Location.LocationType
+	(*DdlRequest)(nil),                   // 1: greptime.v1.DdlRequest
+	(*CreateTableExpr)(nil),              // 2: greptime.v1.CreateTableExpr
+	(*AlterExpr)(nil),                    // 3: greptime.v1.AlterExpr
+	(*DropTableExpr)(nil),                // 4: greptime.v1.DropTableExpr
+	(*FlushTableExpr)(nil),               // 5: greptime.v1.FlushTableExpr
+	(*CreateDatabaseExpr)(nil),           // 6: greptime.v1.CreateDatabaseExpr
+	(*AddColumns)(nil),                   // 7: greptime.v1.AddColumns
+	(*DropColumns)(nil),                  // 8: greptime.v1.DropColumns
+	(*RenameTable)(nil),                  // 9: greptime.v1.RenameTable
+	(*AddColumn)(nil),                    // 10: greptime.v1.AddColumn
+	(*DropColumn)(nil),                   // 11: greptime.v1.DropColumn
+	(*TableId)(nil),                      // 12: greptime.v1.TableId
+	nil,                                  // 13: greptime.v1.CreateTableExpr.TableOptionsEntry
+	(*AddColumn_Location)(nil),           // 14: greptime.v1.AddColumn.Location
+	(*ColumnDef)(nil),                    // 15: greptime.v1.ColumnDef
 }
 var file_greptime_v1_ddl_proto_depIdxs = []int32{
-	5,  // 0: greptime.v1.DdlRequest.create_database:type_name -> greptime.v1.CreateDatabaseExpr
-	1,  // 1: greptime.v1.DdlRequest.create_table:type_name -> greptime.v1.CreateTableExpr
-	2,  // 2: greptime.v1.DdlRequest.alter:type_name -> greptime.v1.AlterExpr
-	3,  // 3: greptime.v1.DdlRequest.drop_table:type_name -> greptime.v1.DropTableExpr
-	4,  // 4: greptime.v1.DdlRequest.flush_table:type_name -> greptime.v1.FlushTableExpr
-	13, // 5: greptime.v1.CreateTableExpr.column_defs:type_name -> greptime.v1.ColumnDef
-	12, // 6: greptime.v1.CreateTableExpr.table_options:type_name -> greptime.v1.CreateTableExpr.TableOptionsEntry
-	11, // 7: greptime.v1.CreateTableExpr.table_id:type_name -> greptime.v1.TableId
-	6,  // 8: greptime.v1.AlterExpr.add_columns:type_name -> greptime.v1.AddColumns
-	7,  // 9: greptime.v1.AlterExpr.drop_columns:type_name -> greptime.v1.DropColumns
-	8,  // 10: greptime.v1.AlterExpr.rename_table:type_name -> greptime.v1.RenameTable
-	9,  // 11: greptime.v1.AddColumns.add_columns:type_name -> greptime.v1.AddColumn
-	10, // 12: greptime.v1.DropColumns.drop_columns:type_name -> greptime.v1.DropColumn
-	13, // 13: greptime.v1.AddColumn.column_def:type_name -> greptime.v1.ColumnDef
-	14, // [14:14] is the sub-list for method output_type
-	14, // [14:14] is the sub-list for method input_type
-	14, // [14:14] is the sub-list for extension type_name
-	14, // [14:14] is the sub-list for extension extendee
-	0,  // [0:14] is the sub-list for field type_name
+	6,  // 0: greptime.v1.DdlRequest.create_database:type_name -> greptime.v1.CreateDatabaseExpr
+	2,  // 1: greptime.v1.DdlRequest.create_table:type_name -> greptime.v1.CreateTableExpr
+	3,  // 2: greptime.v1.DdlRequest.alter:type_name -> greptime.v1.AlterExpr
+	4,  // 3: greptime.v1.DdlRequest.drop_table:type_name -> greptime.v1.DropTableExpr
+	5,  // 4: greptime.v1.DdlRequest.flush_table:type_name -> greptime.v1.FlushTableExpr
+	15, // 5: greptime.v1.CreateTableExpr.column_defs:type_name -> greptime.v1.ColumnDef
+	13, // 6: greptime.v1.CreateTableExpr.table_options:type_name -> greptime.v1.CreateTableExpr.TableOptionsEntry
+	12, // 7: greptime.v1.CreateTableExpr.table_id:type_name -> greptime.v1.TableId
+	7,  // 8: greptime.v1.AlterExpr.add_columns:type_name -> greptime.v1.AddColumns
+	8,  // 9: greptime.v1.AlterExpr.drop_columns:type_name -> greptime.v1.DropColumns
+	9,  // 10: greptime.v1.AlterExpr.rename_table:type_name -> greptime.v1.RenameTable
+	10, // 11: greptime.v1.AddColumns.add_columns:type_name -> greptime.v1.AddColumn
+	11, // 12: greptime.v1.DropColumns.drop_columns:type_name -> greptime.v1.DropColumn
+	15, // 13: greptime.v1.AddColumn.column_def:type_name -> greptime.v1.ColumnDef
+	14, // 14: greptime.v1.AddColumn.location:type_name -> greptime.v1.AddColumn.Location
+	0,  // 15: greptime.v1.AddColumn.Location.location_type:type_name -> greptime.v1.AddColumn.Location.LocationType
+	16, // [16:16] is the sub-list for method output_type
+	16, // [16:16] is the sub-list for method input_type
+	16, // [16:16] is the sub-list for extension type_name
+	16, // [16:16] is the sub-list for extension extendee
+	0,  // [0:16] is the sub-list for field type_name
 }
 
 func init() { file_greptime_v1_ddl_proto_init() }
@@ -1234,6 +1363,18 @@ func file_greptime_v1_ddl_proto_init() {
 				return nil
 			}
 		}
+		file_greptime_v1_ddl_proto_msgTypes[13].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AddColumn_Location); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 	}
 	file_greptime_v1_ddl_proto_msgTypes[0].OneofWrappers = []interface{}{
 		(*DdlRequest_CreateDatabase)(nil),
@@ -1253,13 +1394,14 @@ func file_greptime_v1_ddl_proto_init() {
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_greptime_v1_ddl_proto_rawDesc,
-			NumEnums:      0,
-			NumMessages:   13,
+			NumEnums:      1,
+			NumMessages:   14,
 			NumExtensions: 0,
 			NumServices:   0,
 		},
 		GoTypes:           file_greptime_v1_ddl_proto_goTypes,
 		DependencyIndexes: file_greptime_v1_ddl_proto_depIdxs,
+		EnumInfos:         file_greptime_v1_ddl_proto_enumTypes,
 		MessageInfos:      file_greptime_v1_ddl_proto_msgTypes,
 	}.Build()
 	File_greptime_v1_ddl_proto = out.File
diff --git a/java/src/main/java/io/greptime/v1/Columns.java b/java/src/main/java/io/greptime/v1/Columns.java
index 37cf1cb..270c4a9 100644
--- a/java/src/main/java/io/greptime/v1/Columns.java
+++ b/java/src/main/java/io/greptime/v1/Columns.java
@@ -305,7 +305,8 @@ public final class Columns {
     /**
      * <pre>
      * The array of non-null values in this column.
-     * For example: suppose there is a column "foo" that contains some int32 values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
+     * For example: suppose there is a column "foo" that contains some int32
+     * values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
      *   column:
      *     column_name: foo
      *     semantic_type: Tag
@@ -320,7 +321,8 @@ public final class Columns {
     /**
      * <pre>
      * The array of non-null values in this column.
-     * For example: suppose there is a column "foo" that contains some int32 values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
+     * For example: suppose there is a column "foo" that contains some int32
+     * values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
      *   column:
      *     column_name: foo
      *     semantic_type: Tag
@@ -335,7 +337,8 @@ public final class Columns {
     /**
      * <pre>
      * The array of non-null values in this column.
-     * For example: suppose there is a column "foo" that contains some int32 values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
+     * For example: suppose there is a column "foo" that contains some int32
+     * values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
      *   column:
      *     column_name: foo
      *     semantic_type: Tag
@@ -350,7 +353,8 @@ public final class Columns {
     /**
      * <pre>
      * Mask maps the positions of null values.
-     * If a bit in null_mask is 1, it indicates that the column value at that position is null.
+     * If a bit in null_mask is 1, it indicates that the column value at that
+     * position is null.
      * </pre>
      *
      * <code>bytes null_mask = 4;</code>
@@ -408,6 +412,79 @@ 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;
@@ -919,6 +996,475 @@ 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<com.google.protobuf.ByteString>();
+                  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;
@@ -933,7 +1479,6 @@ public final class Columns {
       }
 
       public static final int I8_VALUES_FIELD_NUMBER = 1;
-      @SuppressWarnings("serial")
       private com.google.protobuf.Internal.IntList i8Values_;
       /**
        * <code>repeated int32 i8_values = 1;</code>
@@ -962,7 +1507,6 @@ 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_;
       /**
        * <code>repeated int32 i16_values = 2;</code>
@@ -991,7 +1535,6 @@ 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_;
       /**
        * <code>repeated int32 i32_values = 3;</code>
@@ -1020,7 +1563,6 @@ 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_;
       /**
        * <code>repeated int64 i64_values = 4;</code>
@@ -1049,7 +1591,6 @@ 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_;
       /**
        * <code>repeated uint32 u8_values = 5;</code>
@@ -1078,7 +1619,6 @@ 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_;
       /**
        * <code>repeated uint32 u16_values = 6;</code>
@@ -1107,7 +1647,6 @@ 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_;
       /**
        * <code>repeated uint32 u32_values = 7;</code>
@@ -1136,7 +1675,6 @@ 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_;
       /**
        * <code>repeated uint64 u64_values = 8;</code>
@@ -1165,7 +1703,6 @@ 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_;
       /**
        * <code>repeated float f32_values = 9;</code>
@@ -1194,7 +1731,6 @@ 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_;
       /**
        * <code>repeated double f64_values = 10;</code>
@@ -1223,7 +1759,6 @@ 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_;
       /**
        * <code>repeated bool bool_values = 11;</code>
@@ -1252,7 +1787,6 @@ public final class Columns {
       private int boolValuesMemoizedSerializedSize = -1;
 
       public static final int BINARY_VALUES_FIELD_NUMBER = 12;
-      @SuppressWarnings("serial")
       private java.util.List<com.google.protobuf.ByteString> binaryValues_;
       /**
        * <code>repeated bytes binary_values = 12;</code>
@@ -1280,7 +1814,6 @@ public final class Columns {
       }
 
       public static final int STRING_VALUES_FIELD_NUMBER = 13;
-      @SuppressWarnings("serial")
       private com.google.protobuf.LazyStringList stringValues_;
       /**
        * <code>repeated string string_values = 13;</code>
@@ -1316,7 +1849,6 @@ public final class Columns {
       }
 
       public static final int DATE_VALUES_FIELD_NUMBER = 14;
-      @SuppressWarnings("serial")
       private com.google.protobuf.Internal.IntList dateValues_;
       /**
        * <code>repeated int32 date_values = 14;</code>
@@ -1345,7 +1877,6 @@ 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_;
       /**
        * <code>repeated int64 datetime_values = 15;</code>
@@ -1374,7 +1905,6 @@ 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_;
       /**
        * <code>repeated int64 ts_second_values = 16;</code>
@@ -1403,7 +1933,6 @@ 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_;
       /**
        * <code>repeated int64 ts_millisecond_values = 17;</code>
@@ -1432,7 +1961,6 @@ 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_;
       /**
        * <code>repeated int64 ts_microsecond_values = 18;</code>
@@ -1461,7 +1989,6 @@ 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_;
       /**
        * <code>repeated int64 ts_nanosecond_values = 19;</code>
@@ -1629,7 +2156,7 @@ public final class Columns {
         for (int i = 0; i < tsNanosecondValues_.size(); i++) {
           output.writeInt64NoTag(tsNanosecondValues_.getLong(i));
         }
-        getUnknownFields().writeTo(output);
+        unknownFields.writeTo(output);
       }
 
       @java.lang.Override
@@ -1884,7 +2411,7 @@ public final class Columns {
           }
           tsNanosecondValuesMemoizedSerializedSize = dataSize;
         }
-        size += getUnknownFields().getSerializedSize();
+        size += unknownFields.getSerializedSize();
         memoizedSize = size;
         return size;
       }
@@ -1937,7 +2464,7 @@ public final class Columns {
             .equals(other.getTsMicrosecondValuesList())) return false;
         if (!getTsNanosecondValuesList()
             .equals(other.getTsNanosecondValuesList())) return false;
-        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+        if (!unknownFields.equals(other.unknownFields)) return false;
         return true;
       }
 
@@ -2024,7 +2551,7 @@ public final class Columns {
           hash = (37 * hash) + TS_NANOSECOND_VALUES_FIELD_NUMBER;
           hash = (53 * hash) + getTsNanosecondValuesList().hashCode();
         }
-        hash = (29 * hash) + getUnknownFields().hashCode();
+        hash = (29 * hash) + unknownFields.hashCode();
         memoizedHashCode = hash;
         return hash;
       }
@@ -2141,38 +2668,60 @@ 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;
         }
 
@@ -2199,13 +2748,7 @@ 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);
-          buildPartialRepeatedFields(result);
-          if (bitField0_ != 0) { buildPartial0(result); }
-          onBuilt();
-          return result;
-        }
-
-        private void buildPartialRepeatedFields(io.greptime.v1.Columns.Column.Values result) {
+          int from_bitField0_ = bitField0_;
           if (((bitField0_ & 0x00000001) != 0)) {
             i8Values_.makeImmutable();
             bitField0_ = (bitField0_ & ~0x00000001);
@@ -2301,10 +2844,8 @@ public final class Columns {
             bitField0_ = (bitField0_ & ~0x00040000);
           }
           result.tsNanosecondValues_ = tsNanosecondValues_;
-        }
-
-        private void buildPartial0(io.greptime.v1.Columns.Column.Values result) {
-          int from_bitField0_ = bitField0_;
+          onBuilt();
+          return result;
         }
 
         @java.lang.Override
@@ -2541,7 +3082,7 @@ public final class Columns {
             }
             onChanged();
           }
-          this.mergeUnknownFields(other.getUnknownFields());
+          this.mergeUnknownFields(other.unknownFields);
           onChanged();
           return this;
         }
@@ -2556,314 +3097,17 @@ public final class Columns {
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws java.io.IOException {
-          if (extensionRegistry == null) {
-            throw new java.lang.NullPointerException();
-          }
+          io.greptime.v1.Columns.Column.Values parsedMessage = null;
           try {
-            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)
+            parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
           } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            parsedMessage = (io.greptime.v1.Columns.Column.Values) e.getUnfinishedMessage();
             throw e.unwrapIOException();
           } finally {
-            onChanged();
-          } // finally
+            if (parsedMessage != null) {
+              mergeFrom(parsedMessage);
+            }
+          }
           return this;
         }
         private int bitField0_;
@@ -2873,7 +3117,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00000001) != 0)) {
             i8Values_ = mutableCopy(i8Values_);
             bitField0_ |= 0x00000001;
-          }
+           }
         }
         /**
          * <code>repeated int32 i8_values = 1;</code>
@@ -2907,7 +3151,6 @@ public final class Columns {
          */
         public Builder setI8Values(
             int index, int value) {
-          
           ensureI8ValuesIsMutable();
           i8Values_.setInt(index, value);
           onChanged();
@@ -2919,7 +3162,6 @@ public final class Columns {
          * @return This builder for chaining.
          */
         public Builder addI8Values(int value) {
-          
           ensureI8ValuesIsMutable();
           i8Values_.addInt(value);
           onChanged();
@@ -2954,7 +3196,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00000002) != 0)) {
             i16Values_ = mutableCopy(i16Values_);
             bitField0_ |= 0x00000002;
-          }
+           }
         }
         /**
          * <code>repeated int32 i16_values = 2;</code>
@@ -2988,7 +3230,6 @@ public final class Columns {
          */
         public Builder setI16Values(
             int index, int value) {
-          
           ensureI16ValuesIsMutable();
           i16Values_.setInt(index, value);
           onChanged();
@@ -3000,7 +3241,6 @@ public final class Columns {
          * @return This builder for chaining.
          */
         public Builder addI16Values(int value) {
-          
           ensureI16ValuesIsMutable();
           i16Values_.addInt(value);
           onChanged();
@@ -3035,7 +3275,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00000004) != 0)) {
             i32Values_ = mutableCopy(i32Values_);
             bitField0_ |= 0x00000004;
-          }
+           }
         }
         /**
          * <code>repeated int32 i32_values = 3;</code>
@@ -3069,7 +3309,6 @@ public final class Columns {
          */
         public Builder setI32Values(
             int index, int value) {
-          
           ensureI32ValuesIsMutable();
           i32Values_.setInt(index, value);
           onChanged();
@@ -3081,7 +3320,6 @@ public final class Columns {
          * @return This builder for chaining.
          */
         public Builder addI32Values(int value) {
-          
           ensureI32ValuesIsMutable();
           i32Values_.addInt(value);
           onChanged();
@@ -3116,7 +3354,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00000008) != 0)) {
             i64Values_ = mutableCopy(i64Values_);
             bitField0_ |= 0x00000008;
-          }
+           }
         }
         /**
          * <code>repeated int64 i64_values = 4;</code>
@@ -3150,7 +3388,6 @@ public final class Columns {
          */
         public Builder setI64Values(
             int index, long value) {
-          
           ensureI64ValuesIsMutable();
           i64Values_.setLong(index, value);
           onChanged();
@@ -3162,7 +3399,6 @@ public final class Columns {
          * @return This builder for chaining.
          */
         public Builder addI64Values(long value) {
-          
           ensureI64ValuesIsMutable();
           i64Values_.addLong(value);
           onChanged();
@@ -3197,7 +3433,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00000010) != 0)) {
             u8Values_ = mutableCopy(u8Values_);
             bitField0_ |= 0x00000010;
-          }
+           }
         }
         /**
          * <code>repeated uint32 u8_values = 5;</code>
@@ -3231,7 +3467,6 @@ public final class Columns {
          */
         public Builder setU8Values(
             int index, int value) {
-          
           ensureU8ValuesIsMutable();
           u8Values_.setInt(index, value);
           onChanged();
@@ -3243,7 +3478,6 @@ public final class Columns {
          * @return This builder for chaining.
          */
         public Builder addU8Values(int value) {
-          
           ensureU8ValuesIsMutable();
           u8Values_.addInt(value);
           onChanged();
@@ -3278,7 +3512,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00000020) != 0)) {
             u16Values_ = mutableCopy(u16Values_);
             bitField0_ |= 0x00000020;
-          }
+           }
         }
         /**
          * <code>repeated uint32 u16_values = 6;</code>
@@ -3312,7 +3546,6 @@ public final class Columns {
          */
         public Builder setU16Values(
             int index, int value) {
-          
           ensureU16ValuesIsMutable();
           u16Values_.setInt(index, value);
           onChanged();
@@ -3324,7 +3557,6 @@ public final class Columns {
          * @return This builder for chaining.
          */
         public Builder addU16Values(int value) {
-          
           ensureU16ValuesIsMutable();
           u16Values_.addInt(value);
           onChanged();
@@ -3359,7 +3591,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00000040) != 0)) {
             u32Values_ = mutableCopy(u32Values_);
             bitField0_ |= 0x00000040;
-          }
+           }
         }
         /**
          * <code>repeated uint32 u32_values = 7;</code>
@@ -3393,7 +3625,6 @@ public final class Columns {
          */
         public Builder setU32Values(
             int index, int value) {
-          
           ensureU32ValuesIsMutable();
           u32Values_.setInt(index, value);
           onChanged();
@@ -3405,7 +3636,6 @@ public final class Columns {
          * @return This builder for chaining.
          */
         public Builder addU32Values(int value) {
-          
           ensureU32ValuesIsMutable();
           u32Values_.addInt(value);
           onChanged();
@@ -3440,7 +3670,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00000080) != 0)) {
             u64Values_ = mutableCopy(u64Values_);
             bitField0_ |= 0x00000080;
-          }
+           }
         }
         /**
          * <code>repeated uint64 u64_values = 8;</code>
@@ -3474,7 +3704,6 @@ public final class Columns {
          */
         public Builder setU64Values(
             int index, long value) {
-          
           ensureU64ValuesIsMutable();
           u64Values_.setLong(index, value);
           onChanged();
@@ -3486,7 +3715,6 @@ public final class Columns {
          * @return This builder for chaining.
          */
         public Builder addU64Values(long value) {
-          
           ensureU64ValuesIsMutable();
           u64Values_.addLong(value);
           onChanged();
@@ -3521,7 +3749,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00000100) != 0)) {
             f32Values_ = mutableCopy(f32Values_);
             bitField0_ |= 0x00000100;
-          }
+           }
         }
         /**
          * <code>repeated float f32_values = 9;</code>
@@ -3555,7 +3783,6 @@ public final class Columns {
          */
         public Builder setF32Values(
             int index, float value) {
-          
           ensureF32ValuesIsMutable();
           f32Values_.setFloat(index, value);
           onChanged();
@@ -3567,7 +3794,6 @@ public final class Columns {
          * @return This builder for chaining.
          */
         public Builder addF32Values(float value) {
-          
           ensureF32ValuesIsMutable();
           f32Values_.addFloat(value);
           onChanged();
@@ -3602,7 +3828,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00000200) != 0)) {
             f64Values_ = mutableCopy(f64Values_);
             bitField0_ |= 0x00000200;
-          }
+           }
         }
         /**
          * <code>repeated double f64_values = 10;</code>
@@ -3636,7 +3862,6 @@ public final class Columns {
          */
         public Builder setF64Values(
             int index, double value) {
-          
           ensureF64ValuesIsMutable();
           f64Values_.setDouble(index, value);
           onChanged();
@@ -3648,7 +3873,6 @@ public final class Columns {
          * @return This builder for chaining.
          */
         public Builder addF64Values(double value) {
-          
           ensureF64ValuesIsMutable();
           f64Values_.addDouble(value);
           onChanged();
@@ -3683,7 +3907,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00000400) != 0)) {
             boolValues_ = mutableCopy(boolValues_);
             bitField0_ |= 0x00000400;
-          }
+           }
         }
         /**
          * <code>repeated bool bool_values = 11;</code>
@@ -3717,7 +3941,6 @@ public final class Columns {
          */
         public Builder setBoolValues(
             int index, boolean value) {
-          
           ensureBoolValuesIsMutable();
           boolValues_.setBoolean(index, value);
           onChanged();
@@ -3729,7 +3952,6 @@ public final class Columns {
          * @return This builder for chaining.
          */
         public Builder addBoolValues(boolean value) {
-          
           ensureBoolValuesIsMutable();
           boolValues_.addBoolean(value);
           onChanged();
@@ -3764,7 +3986,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00000800) != 0)) {
             binaryValues_ = new java.util.ArrayList<com.google.protobuf.ByteString>(binaryValues_);
             bitField0_ |= 0x00000800;
-          }
+           }
         }
         /**
          * <code>repeated bytes binary_values = 12;</code>
@@ -3798,8 +4020,10 @@ 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;
@@ -3810,8 +4034,10 @@ 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;
@@ -3887,8 +4113,10 @@ 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;
@@ -3900,8 +4128,10 @@ 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;
@@ -3936,8 +4166,10 @@ 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();
@@ -3949,7 +4181,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00002000) != 0)) {
             dateValues_ = mutableCopy(dateValues_);
             bitField0_ |= 0x00002000;
-          }
+           }
         }
         /**
          * <code>repeated int32 date_values = 14;</code>
@@ -3983,7 +4215,6 @@ public final class Columns {
          */
         public Builder setDateValues(
             int index, int value) {
-          
           ensureDateValuesIsMutable();
           dateValues_.setInt(index, value);
           onChanged();
@@ -3995,7 +4226,6 @@ public final class Columns {
          * @return This builder for chaining.
          */
         public Builder addDateValues(int value) {
-          
           ensureDateValuesIsMutable();
           dateValues_.addInt(value);
           onChanged();
@@ -4030,7 +4260,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00004000) != 0)) {
             datetimeValues_ = mutableCopy(datetimeValues_);
             bitField0_ |= 0x00004000;
-          }
+           }
         }
         /**
          * <code>repeated int64 datetime_values = 15;</code>
@@ -4064,7 +4294,6 @@ public final class Columns {
          */
         public Builder setDatetimeValues(
             int index, long value) {
-          
           ensureDatetimeValuesIsMutable();
           datetimeValues_.setLong(index, value);
           onChanged();
@@ -4076,7 +4305,6 @@ public final class Columns {
          * @return This builder for chaining.
          */
         public Builder addDatetimeValues(long value) {
-          
           ensureDatetimeValuesIsMutable();
           datetimeValues_.addLong(value);
           onChanged();
@@ -4111,7 +4339,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00008000) != 0)) {
             tsSecondValues_ = mutableCopy(tsSecondValues_);
             bitField0_ |= 0x00008000;
-          }
+           }
         }
         /**
          * <code>repeated int64 ts_second_values = 16;</code>
@@ -4145,7 +4373,6 @@ public final class Columns {
          */
         public Builder setTsSecondValues(
             int index, long value) {
-          
           ensureTsSecondValuesIsMutable();
           tsSecondValues_.setLong(index, value);
           onChanged();
@@ -4157,7 +4384,6 @@ public final class Columns {
          * @return This builder for chaining.
          */
         public Builder addTsSecondValues(long value) {
-          
           ensureTsSecondValuesIsMutable();
           tsSecondValues_.addLong(value);
           onChanged();
@@ -4192,7 +4418,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00010000) != 0)) {
             tsMillisecondValues_ = mutableCopy(tsMillisecondValues_);
             bitField0_ |= 0x00010000;
-          }
+           }
         }
         /**
          * <code>repeated int64 ts_millisecond_values = 17;</code>
@@ -4226,7 +4452,6 @@ public final class Columns {
          */
         public Builder setTsMillisecondValues(
             int index, long value) {
-          
           ensureTsMillisecondValuesIsMutable();
           tsMillisecondValues_.setLong(index, value);
           onChanged();
@@ -4238,7 +4463,6 @@ public final class Columns {
          * @return This builder for chaining.
          */
         public Builder addTsMillisecondValues(long value) {
-          
           ensureTsMillisecondValuesIsMutable();
           tsMillisecondValues_.addLong(value);
           onChanged();
@@ -4273,7 +4497,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00020000) != 0)) {
             tsMicrosecondValues_ = mutableCopy(tsMicrosecondValues_);
             bitField0_ |= 0x00020000;
-          }
+           }
         }
         /**
          * <code>repeated int64 ts_microsecond_values = 18;</code>
@@ -4307,7 +4531,6 @@ public final class Columns {
          */
         public Builder setTsMicrosecondValues(
             int index, long value) {
-          
           ensureTsMicrosecondValuesIsMutable();
           tsMicrosecondValues_.setLong(index, value);
           onChanged();
@@ -4319,7 +4542,6 @@ public final class Columns {
          * @return This builder for chaining.
          */
         public Builder addTsMicrosecondValues(long value) {
-          
           ensureTsMicrosecondValuesIsMutable();
           tsMicrosecondValues_.addLong(value);
           onChanged();
@@ -4354,7 +4576,7 @@ public final class Columns {
           if (!((bitField0_ & 0x00040000) != 0)) {
             tsNanosecondValues_ = mutableCopy(tsNanosecondValues_);
             bitField0_ |= 0x00040000;
-          }
+           }
         }
         /**
          * <code>repeated int64 ts_nanosecond_values = 19;</code>
@@ -4388,7 +4610,6 @@ public final class Columns {
          */
         public Builder setTsNanosecondValues(
             int index, long value) {
-          
           ensureTsNanosecondValuesIsMutable();
           tsNanosecondValues_.setLong(index, value);
           onChanged();
@@ -4400,7 +4621,6 @@ public final class Columns {
          * @return This builder for chaining.
          */
         public Builder addTsNanosecondValues(long value) {
-          
           ensureTsNanosecondValuesIsMutable();
           tsNanosecondValues_.addLong(value);
           onChanged();
@@ -4462,18 +4682,7 @@ public final class Columns {
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          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();
+          return new Values(input, extensionRegistry);
         }
       };
 
@@ -4494,8 +4703,7 @@ public final class Columns {
     }
 
     public static final int COLUMN_NAME_FIELD_NUMBER = 1;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object columnName_ = "";
+    private volatile java.lang.Object columnName_;
     /**
      * <code>string column_name = 1;</code>
      * @return The columnName.
@@ -4533,7 +4741,7 @@ public final class Columns {
     }
 
     public static final int SEMANTIC_TYPE_FIELD_NUMBER = 2;
-    private int semanticType_ = 0;
+    private int semanticType_;
     /**
      * <code>.greptime.v1.Column.SemanticType semantic_type = 2;</code>
      * @return The enum numeric value on the wire for semanticType.
@@ -4546,7 +4754,8 @@ public final class Columns {
      * @return The semanticType.
      */
     @java.lang.Override public io.greptime.v1.Columns.Column.SemanticType getSemanticType() {
-      io.greptime.v1.Columns.Column.SemanticType result = io.greptime.v1.Columns.Column.SemanticType.forNumber(semanticType_);
+      @SuppressWarnings("deprecation")
+      io.greptime.v1.Columns.Column.SemanticType result = io.greptime.v1.Columns.Column.SemanticType.valueOf(semanticType_);
       return result == null ? io.greptime.v1.Columns.Column.SemanticType.UNRECOGNIZED : result;
     }
 
@@ -4555,7 +4764,8 @@ public final class Columns {
     /**
      * <pre>
      * The array of non-null values in this column.
-     * For example: suppose there is a column "foo" that contains some int32 values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
+     * For example: suppose there is a column "foo" that contains some int32
+     * values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
      *   column:
      *     column_name: foo
      *     semantic_type: Tag
@@ -4573,7 +4783,8 @@ public final class Columns {
     /**
      * <pre>
      * The array of non-null values in this column.
-     * For example: suppose there is a column "foo" that contains some int32 values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
+     * For example: suppose there is a column "foo" that contains some int32
+     * values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
      *   column:
      *     column_name: foo
      *     semantic_type: Tag
@@ -4591,7 +4802,8 @@ public final class Columns {
     /**
      * <pre>
      * The array of non-null values in this column.
-     * For example: suppose there is a column "foo" that contains some int32 values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
+     * For example: suppose there is a column "foo" that contains some int32
+     * values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
      *   column:
      *     column_name: foo
      *     semantic_type: Tag
@@ -4603,15 +4815,16 @@ public final class Columns {
      */
     @java.lang.Override
     public io.greptime.v1.Columns.Column.ValuesOrBuilder getValuesOrBuilder() {
-      return values_ == null ? io.greptime.v1.Columns.Column.Values.getDefaultInstance() : values_;
+      return getValues();
     }
 
     public static final int NULL_MASK_FIELD_NUMBER = 4;
-    private com.google.protobuf.ByteString nullMask_ = com.google.protobuf.ByteString.EMPTY;
+    private com.google.protobuf.ByteString nullMask_;
     /**
      * <pre>
      * Mask maps the positions of null values.
-     * If a bit in null_mask is 1, it indicates that the column value at that position is null.
+     * If a bit in null_mask is 1, it indicates that the column value at that
+     * position is null.
      * </pre>
      *
      * <code>bytes null_mask = 4;</code>
@@ -4623,7 +4836,7 @@ public final class Columns {
     }
 
     public static final int DATATYPE_FIELD_NUMBER = 5;
-    private int datatype_ = 0;
+    private int datatype_;
     /**
      * <pre>
      * Helpful in creating vector from column.
@@ -4644,7 +4857,8 @@ public final class Columns {
      * @return The datatype.
      */
     @java.lang.Override public io.greptime.v1.Columns.ColumnDataType getDatatype() {
-      io.greptime.v1.Columns.ColumnDataType result = io.greptime.v1.Columns.ColumnDataType.forNumber(datatype_);
+      @SuppressWarnings("deprecation")
+      io.greptime.v1.Columns.ColumnDataType result = io.greptime.v1.Columns.ColumnDataType.valueOf(datatype_);
       return result == null ? io.greptime.v1.Columns.ColumnDataType.UNRECOGNIZED : result;
     }
 
@@ -4662,7 +4876,7 @@ public final class Columns {
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(columnName_)) {
+      if (!getColumnNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, columnName_);
       }
       if (semanticType_ != io.greptime.v1.Columns.Column.SemanticType.TAG.getNumber()) {
@@ -4677,7 +4891,7 @@ public final class Columns {
       if (datatype_ != io.greptime.v1.Columns.ColumnDataType.BOOLEAN.getNumber()) {
         output.writeEnum(5, datatype_);
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -4686,7 +4900,7 @@ public final class Columns {
       if (size != -1) return size;
 
       size = 0;
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(columnName_)) {
+      if (!getColumnNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, columnName_);
       }
       if (semanticType_ != io.greptime.v1.Columns.Column.SemanticType.TAG.getNumber()) {
@@ -4705,7 +4919,7 @@ public final class Columns {
         size += com.google.protobuf.CodedOutputStream
           .computeEnumSize(5, datatype_);
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -4731,7 +4945,7 @@ public final class Columns {
       if (!getNullMask()
           .equals(other.getNullMask())) return false;
       if (datatype_ != other.datatype_) return false;
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -4754,7 +4968,7 @@ public final class Columns {
       hash = (53 * hash) + getNullMask().hashCode();
       hash = (37 * hash) + DATATYPE_FIELD_NUMBER;
       hash = (53 * hash) + datatype_;
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -4871,27 +5085,36 @@ 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;
-        values_ = null;
-        if (valuesBuilder_ != null) {
-          valuesBuilder_.dispose();
+
+        if (valuesBuilder_ == null) {
+          values_ = null;
+        } else {
+          values_ = null;
           valuesBuilder_ = null;
         }
         nullMask_ = com.google.protobuf.ByteString.EMPTY;
+
         datatype_ = 0;
+
         return this;
       }
 
@@ -4918,32 +5141,19 @@ 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);
-        if (bitField0_ != 0) { buildPartial0(result); }
+        result.columnName_ = columnName_;
+        result.semanticType_ = semanticType_;
+        if (valuesBuilder_ == null) {
+          result.values_ = values_;
+        } else {
+          result.values_ = valuesBuilder_.build();
+        }
+        result.nullMask_ = nullMask_;
+        result.datatype_ = datatype_;
         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();
@@ -4990,7 +5200,6 @@ 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) {
@@ -5005,7 +5214,7 @@ public final class Columns {
         if (other.datatype_ != 0) {
           setDatatypeValue(other.getDatatypeValue());
         }
-        this.mergeUnknownFields(other.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -5020,60 +5229,19 @@ public final class Columns {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Columns.Column parsedMessage = null;
         try {
-          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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Columns.Column) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
-      private int bitField0_;
 
       private java.lang.Object columnName_ = "";
       /**
@@ -5116,9 +5284,11 @@ 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;
       }
@@ -5127,8 +5297,8 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder clearColumnName() {
+        
         columnName_ = getDefaultInstance().getColumnName();
-        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -5139,10 +5309,12 @@ 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;
       }
@@ -5161,8 +5333,8 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder setSemanticTypeValue(int value) {
+        
         semanticType_ = value;
-        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -5172,7 +5344,8 @@ public final class Columns {
        */
       @java.lang.Override
       public io.greptime.v1.Columns.Column.SemanticType getSemanticType() {
-        io.greptime.v1.Columns.Column.SemanticType result = io.greptime.v1.Columns.Column.SemanticType.forNumber(semanticType_);
+        @SuppressWarnings("deprecation")
+        io.greptime.v1.Columns.Column.SemanticType result = io.greptime.v1.Columns.Column.SemanticType.valueOf(semanticType_);
         return result == null ? io.greptime.v1.Columns.Column.SemanticType.UNRECOGNIZED : result;
       }
       /**
@@ -5184,7 +5357,7 @@ public final class Columns {
         if (value == null) {
           throw new NullPointerException();
         }
-        bitField0_ |= 0x00000002;
+        
         semanticType_ = value.getNumber();
         onChanged();
         return this;
@@ -5194,7 +5367,7 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder clearSemanticType() {
-        bitField0_ = (bitField0_ & ~0x00000002);
+        
         semanticType_ = 0;
         onChanged();
         return this;
@@ -5206,7 +5379,8 @@ public final class Columns {
       /**
        * <pre>
        * The array of non-null values in this column.
-       * For example: suppose there is a column "foo" that contains some int32 values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
+       * For example: suppose there is a column "foo" that contains some int32
+       * values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
        *   column:
        *     column_name: foo
        *     semantic_type: Tag
@@ -5218,12 +5392,13 @@ public final class Columns {
        * @return Whether the values field is set.
        */
       public boolean hasValues() {
-        return ((bitField0_ & 0x00000004) != 0);
+        return valuesBuilder_ != null || values_ != null;
       }
       /**
        * <pre>
        * The array of non-null values in this column.
-       * For example: suppose there is a column "foo" that contains some int32 values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
+       * For example: suppose there is a column "foo" that contains some int32
+       * values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
        *   column:
        *     column_name: foo
        *     semantic_type: Tag
@@ -5244,7 +5419,8 @@ public final class Columns {
       /**
        * <pre>
        * The array of non-null values in this column.
-       * For example: suppose there is a column "foo" that contains some int32 values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
+       * For example: suppose there is a column "foo" that contains some int32
+       * values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
        *   column:
        *     column_name: foo
        *     semantic_type: Tag
@@ -5260,17 +5436,18 @@ public final class Columns {
             throw new NullPointerException();
           }
           values_ = value;
+          onChanged();
         } else {
           valuesBuilder_.setMessage(value);
         }
-        bitField0_ |= 0x00000004;
-        onChanged();
+
         return this;
       }
       /**
        * <pre>
        * The array of non-null values in this column.
-       * For example: suppose there is a column "foo" that contains some int32 values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
+       * For example: suppose there is a column "foo" that contains some int32
+       * values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
        *   column:
        *     column_name: foo
        *     semantic_type: Tag
@@ -5284,17 +5461,18 @@ 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;
       }
       /**
        * <pre>
        * The array of non-null values in this column.
-       * For example: suppose there is a column "foo" that contains some int32 values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
+       * For example: suppose there is a column "foo" that contains some int32
+       * values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
        *   column:
        *     column_name: foo
        *     semantic_type: Tag
@@ -5306,24 +5484,24 @@ public final class Columns {
        */
       public Builder mergeValues(io.greptime.v1.Columns.Column.Values value) {
         if (valuesBuilder_ == null) {
-          if (((bitField0_ & 0x00000004) != 0) &&
-            values_ != null &&
-            values_ != io.greptime.v1.Columns.Column.Values.getDefaultInstance()) {
-            getValuesBuilder().mergeFrom(value);
+          if (values_ != null) {
+            values_ =
+              io.greptime.v1.Columns.Column.Values.newBuilder(values_).mergeFrom(value).buildPartial();
           } else {
             values_ = value;
           }
+          onChanged();
         } else {
           valuesBuilder_.mergeFrom(value);
         }
-        bitField0_ |= 0x00000004;
-        onChanged();
+
         return this;
       }
       /**
        * <pre>
        * The array of non-null values in this column.
-       * For example: suppose there is a column "foo" that contains some int32 values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
+       * For example: suppose there is a column "foo" that contains some int32
+       * values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
        *   column:
        *     column_name: foo
        *     semantic_type: Tag
@@ -5334,19 +5512,21 @@ public final class Columns {
        * <code>.greptime.v1.Column.Values values = 3;</code>
        */
       public Builder clearValues() {
-        bitField0_ = (bitField0_ & ~0x00000004);
-        values_ = null;
-        if (valuesBuilder_ != null) {
-          valuesBuilder_.dispose();
+        if (valuesBuilder_ == null) {
+          values_ = null;
+          onChanged();
+        } else {
+          values_ = null;
           valuesBuilder_ = null;
         }
-        onChanged();
+
         return this;
       }
       /**
        * <pre>
        * The array of non-null values in this column.
-       * For example: suppose there is a column "foo" that contains some int32 values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
+       * For example: suppose there is a column "foo" that contains some int32
+       * values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
        *   column:
        *     column_name: foo
        *     semantic_type: Tag
@@ -5357,14 +5537,15 @@ public final class Columns {
        * <code>.greptime.v1.Column.Values values = 3;</code>
        */
       public io.greptime.v1.Columns.Column.Values.Builder getValuesBuilder() {
-        bitField0_ |= 0x00000004;
+        
         onChanged();
         return getValuesFieldBuilder().getBuilder();
       }
       /**
        * <pre>
        * The array of non-null values in this column.
-       * For example: suppose there is a column "foo" that contains some int32 values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
+       * For example: suppose there is a column "foo" that contains some int32
+       * values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
        *   column:
        *     column_name: foo
        *     semantic_type: Tag
@@ -5385,7 +5566,8 @@ public final class Columns {
       /**
        * <pre>
        * The array of non-null values in this column.
-       * For example: suppose there is a column "foo" that contains some int32 values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
+       * For example: suppose there is a column "foo" that contains some int32
+       * values (1, 2, 3, 4, 5, null, 7, 8, 9, null);
        *   column:
        *     column_name: foo
        *     semantic_type: Tag
@@ -5413,7 +5595,8 @@ public final class Columns {
       /**
        * <pre>
        * Mask maps the positions of null values.
-       * If a bit in null_mask is 1, it indicates that the column value at that position is null.
+       * If a bit in null_mask is 1, it indicates that the column value at that
+       * position is null.
        * </pre>
        *
        * <code>bytes null_mask = 4;</code>
@@ -5426,7 +5609,8 @@ public final class Columns {
       /**
        * <pre>
        * Mask maps the positions of null values.
-       * If a bit in null_mask is 1, it indicates that the column value at that position is null.
+       * If a bit in null_mask is 1, it indicates that the column value at that
+       * position is null.
        * </pre>
        *
        * <code>bytes null_mask = 4;</code>
@@ -5434,23 +5618,26 @@ 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;
       }
       /**
        * <pre>
        * Mask maps the positions of null values.
-       * If a bit in null_mask is 1, it indicates that the column value at that position is null.
+       * If a bit in null_mask is 1, it indicates that the column value at that
+       * position is null.
        * </pre>
        *
        * <code>bytes null_mask = 4;</code>
        * @return This builder for chaining.
        */
       public Builder clearNullMask() {
-        bitField0_ = (bitField0_ & ~0x00000008);
+        
         nullMask_ = getDefaultInstance().getNullMask();
         onChanged();
         return this;
@@ -5478,8 +5665,8 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder setDatatypeValue(int value) {
+        
         datatype_ = value;
-        bitField0_ |= 0x00000010;
         onChanged();
         return this;
       }
@@ -5493,7 +5680,8 @@ public final class Columns {
        */
       @java.lang.Override
       public io.greptime.v1.Columns.ColumnDataType getDatatype() {
-        io.greptime.v1.Columns.ColumnDataType result = io.greptime.v1.Columns.ColumnDataType.forNumber(datatype_);
+        @SuppressWarnings("deprecation")
+        io.greptime.v1.Columns.ColumnDataType result = io.greptime.v1.Columns.ColumnDataType.valueOf(datatype_);
         return result == null ? io.greptime.v1.Columns.ColumnDataType.UNRECOGNIZED : result;
       }
       /**
@@ -5509,7 +5697,7 @@ public final class Columns {
         if (value == null) {
           throw new NullPointerException();
         }
-        bitField0_ |= 0x00000010;
+        
         datatype_ = value.getNumber();
         onChanged();
         return this;
@@ -5523,7 +5711,7 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder clearDatatype() {
-        bitField0_ = (bitField0_ & ~0x00000010);
+        
         datatype_ = 0;
         onChanged();
         return this;
@@ -5561,18 +5749,7 @@ public final class Columns {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new Column(input, extensionRegistry);
       }
     };
 
@@ -5661,6 +5838,65 @@ 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;
@@ -5675,8 +5911,7 @@ public final class Columns {
     }
 
     public static final int NAME_FIELD_NUMBER = 1;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object name_ = "";
+    private volatile java.lang.Object name_;
     /**
      * <code>string name = 1;</code>
      * @return The name.
@@ -5714,7 +5949,7 @@ public final class Columns {
     }
 
     public static final int DATATYPE_FIELD_NUMBER = 2;
-    private int datatype_ = 0;
+    private int datatype_;
     /**
      * <code>.greptime.v1.ColumnDataType datatype = 2;</code>
      * @return The enum numeric value on the wire for datatype.
@@ -5727,12 +5962,13 @@ public final class Columns {
      * @return The datatype.
      */
     @java.lang.Override public io.greptime.v1.Columns.ColumnDataType getDatatype() {
-      io.greptime.v1.Columns.ColumnDataType result = io.greptime.v1.Columns.ColumnDataType.forNumber(datatype_);
+      @SuppressWarnings("deprecation")
+      io.greptime.v1.Columns.ColumnDataType result = io.greptime.v1.Columns.ColumnDataType.valueOf(datatype_);
       return result == null ? io.greptime.v1.Columns.ColumnDataType.UNRECOGNIZED : result;
     }
 
     public static final int IS_NULLABLE_FIELD_NUMBER = 3;
-    private boolean isNullable_ = false;
+    private boolean isNullable_;
     /**
      * <code>bool is_nullable = 3;</code>
      * @return The isNullable.
@@ -5743,7 +5979,7 @@ public final class Columns {
     }
 
     public static final int DEFAULT_CONSTRAINT_FIELD_NUMBER = 4;
-    private com.google.protobuf.ByteString defaultConstraint_ = com.google.protobuf.ByteString.EMPTY;
+    private com.google.protobuf.ByteString defaultConstraint_;
     /**
      * <code>bytes default_constraint = 4;</code>
      * @return The defaultConstraint.
@@ -5767,7 +6003,7 @@ public final class Columns {
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      if (!getNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
       }
       if (datatype_ != io.greptime.v1.Columns.ColumnDataType.BOOLEAN.getNumber()) {
@@ -5779,7 +6015,7 @@ public final class Columns {
       if (!defaultConstraint_.isEmpty()) {
         output.writeBytes(4, defaultConstraint_);
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -5788,7 +6024,7 @@ public final class Columns {
       if (size != -1) return size;
 
       size = 0;
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      if (!getNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
       }
       if (datatype_ != io.greptime.v1.Columns.ColumnDataType.BOOLEAN.getNumber()) {
@@ -5803,7 +6039,7 @@ public final class Columns {
         size += com.google.protobuf.CodedOutputStream
           .computeBytesSize(4, defaultConstraint_);
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -5825,7 +6061,7 @@ public final class Columns {
           != other.getIsNullable()) return false;
       if (!getDefaultConstraint()
           .equals(other.getDefaultConstraint())) return false;
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -5845,7 +6081,7 @@ public final class Columns {
           getIsNullable());
       hash = (37 * hash) + DEFAULT_CONSTRAINT_FIELD_NUMBER;
       hash = (53 * hash) + getDefaultConstraint().hashCode();
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -5962,22 +6198,30 @@ 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;
       }
 
@@ -6004,27 +6248,14 @@ 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);
-        if (bitField0_ != 0) { buildPartial0(result); }
+        result.name_ = name_;
+        result.datatype_ = datatype_;
+        result.isNullable_ = isNullable_;
+        result.defaultConstraint_ = defaultConstraint_;
         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();
@@ -6071,7 +6302,6 @@ 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) {
@@ -6083,7 +6313,7 @@ public final class Columns {
         if (other.getDefaultConstraint() != com.google.protobuf.ByteString.EMPTY) {
           setDefaultConstraint(other.getDefaultConstraint());
         }
-        this.mergeUnknownFields(other.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -6098,53 +6328,19 @@ public final class Columns {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Columns.ColumnDef parsedMessage = null;
         try {
-          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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Columns.ColumnDef) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
-      private int bitField0_;
 
       private java.lang.Object name_ = "";
       /**
@@ -6187,9 +6383,11 @@ 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;
       }
@@ -6198,8 +6396,8 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder clearName() {
+        
         name_ = getDefaultInstance().getName();
-        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -6210,10 +6408,12 @@ 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;
       }
@@ -6232,8 +6432,8 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder setDatatypeValue(int value) {
+        
         datatype_ = value;
-        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -6243,7 +6443,8 @@ public final class Columns {
        */
       @java.lang.Override
       public io.greptime.v1.Columns.ColumnDataType getDatatype() {
-        io.greptime.v1.Columns.ColumnDataType result = io.greptime.v1.Columns.ColumnDataType.forNumber(datatype_);
+        @SuppressWarnings("deprecation")
+        io.greptime.v1.Columns.ColumnDataType result = io.greptime.v1.Columns.ColumnDataType.valueOf(datatype_);
         return result == null ? io.greptime.v1.Columns.ColumnDataType.UNRECOGNIZED : result;
       }
       /**
@@ -6255,7 +6456,7 @@ public final class Columns {
         if (value == null) {
           throw new NullPointerException();
         }
-        bitField0_ |= 0x00000002;
+        
         datatype_ = value.getNumber();
         onChanged();
         return this;
@@ -6265,7 +6466,7 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder clearDatatype() {
-        bitField0_ = (bitField0_ & ~0x00000002);
+        
         datatype_ = 0;
         onChanged();
         return this;
@@ -6288,7 +6489,6 @@ public final class Columns {
       public Builder setIsNullable(boolean value) {
         
         isNullable_ = value;
-        bitField0_ |= 0x00000004;
         onChanged();
         return this;
       }
@@ -6297,7 +6497,7 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder clearIsNullable() {
-        bitField0_ = (bitField0_ & ~0x00000004);
+        
         isNullable_ = false;
         onChanged();
         return this;
@@ -6318,9 +6518,11 @@ 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;
       }
@@ -6329,7 +6531,7 @@ public final class Columns {
        * @return This builder for chaining.
        */
       public Builder clearDefaultConstraint() {
-        bitField0_ = (bitField0_ & ~0x00000008);
+        
         defaultConstraint_ = getDefaultInstance().getDefaultConstraint();
         onChanged();
         return this;
@@ -6367,18 +6569,7 @@ public final class Columns {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new ColumnDef(input, extensionRegistry);
       }
     };
 
diff --git a/java/src/main/java/io/greptime/v1/Database.java b/java/src/main/java/io/greptime/v1/Database.java
index 074ae90..99cd13f 100644
--- a/java/src/main/java/io/greptime/v1/Database.java
+++ b/java/src/main/java/io/greptime/v1/Database.java
@@ -122,6 +122,112 @@ 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.Common.RequestHeader.Builder subBuilder = null;
+              if (header_ != null) {
+                subBuilder = header_.toBuilder();
+              }
+              header_ = input.readMessage(io.greptime.v1.Common.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;
+            }
+            case 42: {
+              io.greptime.v1.Database.DeleteRequest.Builder subBuilder = null;
+              if (requestCase_ == 5) {
+                subBuilder = ((io.greptime.v1.Database.DeleteRequest) request_).toBuilder();
+              }
+              request_ =
+                  input.readMessage(io.greptime.v1.Database.DeleteRequest.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom((io.greptime.v1.Database.DeleteRequest) request_);
+                request_ = subBuilder.buildPartial();
+              }
+              requestCase_ = 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.Database.internal_static_greptime_v1_GreptimeRequest_descriptor;
@@ -203,7 +309,7 @@ public final class Database {
      */
     @java.lang.Override
     public io.greptime.v1.Common.RequestHeaderOrBuilder getHeaderOrBuilder() {
-      return header_ == null ? io.greptime.v1.Common.RequestHeader.getDefaultInstance() : header_;
+      return getHeader();
     }
 
     public static final int INSERT_FIELD_NUMBER = 2;
@@ -359,7 +465,7 @@ public final class Database {
       if (requestCase_ == 5) {
         output.writeMessage(5, (io.greptime.v1.Database.DeleteRequest) request_);
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -388,7 +494,7 @@ public final class Database {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(5, (io.greptime.v1.Database.DeleteRequest) request_);
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -429,7 +535,7 @@ public final class Database {
         case 0:
         default:
       }
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -464,7 +570,7 @@ public final class Database {
         case 0:
         default:
       }
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -581,35 +687,28 @@ 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();
-        bitField0_ = 0;
-        header_ = null;
-        if (headerBuilder_ != null) {
-          headerBuilder_.dispose();
+        if (headerBuilder_ == null) {
+          header_ = null;
+        } else {
+          header_ = null;
           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;
@@ -638,42 +737,44 @@ 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 (bitField0_ != 0) { buildPartial0(result); }
-        buildPartialOneofs(result);
+        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();
+          }
+        }
+        if (requestCase_ == 5) {
+          if (deleteBuilder_ == null) {
+            result.request_ = request_;
+          } else {
+            result.request_ = deleteBuilder_.build();
+          }
+        }
+        result.requestCase_ = requestCase_;
         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();
@@ -742,7 +843,7 @@ public final class Database {
             break;
           }
         }
-        this.mergeUnknownFields(other.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -757,65 +858,17 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Database.GreptimeRequest parsedMessage = null;
         try {
-          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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Database.GreptimeRequest) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
       private int requestCase_ = 0;
@@ -833,7 +886,6 @@ public final class Database {
         return this;
       }
 
-      private int bitField0_;
 
       private io.greptime.v1.Common.RequestHeader header_;
       private com.google.protobuf.SingleFieldBuilderV3<
@@ -843,7 +895,7 @@ public final class Database {
        * @return Whether the header field is set.
        */
       public boolean hasHeader() {
-        return ((bitField0_ & 0x00000001) != 0);
+        return headerBuilder_ != null || header_ != null;
       }
       /**
        * <code>.greptime.v1.RequestHeader header = 1;</code>
@@ -865,11 +917,11 @@ public final class Database {
             throw new NullPointerException();
           }
           header_ = value;
+          onChanged();
         } else {
           headerBuilder_.setMessage(value);
         }
-        bitField0_ |= 0x00000001;
-        onChanged();
+
         return this;
       }
       /**
@@ -879,11 +931,11 @@ public final class Database {
           io.greptime.v1.Common.RequestHeader.Builder builderForValue) {
         if (headerBuilder_ == null) {
           header_ = builderForValue.build();
+          onChanged();
         } else {
           headerBuilder_.setMessage(builderForValue.build());
         }
-        bitField0_ |= 0x00000001;
-        onChanged();
+
         return this;
       }
       /**
@@ -891,38 +943,38 @@ public final class Database {
        */
       public Builder mergeHeader(io.greptime.v1.Common.RequestHeader value) {
         if (headerBuilder_ == null) {
-          if (((bitField0_ & 0x00000001) != 0) &&
-            header_ != null &&
-            header_ != io.greptime.v1.Common.RequestHeader.getDefaultInstance()) {
-            getHeaderBuilder().mergeFrom(value);
+          if (header_ != null) {
+            header_ =
+              io.greptime.v1.Common.RequestHeader.newBuilder(header_).mergeFrom(value).buildPartial();
           } else {
             header_ = value;
           }
+          onChanged();
         } else {
           headerBuilder_.mergeFrom(value);
         }
-        bitField0_ |= 0x00000001;
-        onChanged();
+
         return this;
       }
       /**
        * <code>.greptime.v1.RequestHeader header = 1;</code>
        */
       public Builder clearHeader() {
-        bitField0_ = (bitField0_ & ~0x00000001);
-        header_ = null;
-        if (headerBuilder_ != null) {
-          headerBuilder_.dispose();
+        if (headerBuilder_ == null) {
+          header_ = null;
+          onChanged();
+        } else {
+          header_ = null;
           headerBuilder_ = null;
         }
-        onChanged();
+
         return this;
       }
       /**
        * <code>.greptime.v1.RequestHeader header = 1;</code>
        */
       public io.greptime.v1.Common.RequestHeader.Builder getHeaderBuilder() {
-        bitField0_ |= 0x00000001;
+        
         onChanged();
         return getHeaderFieldBuilder().getBuilder();
       }
@@ -1028,9 +1080,8 @@ public final class Database {
         } else {
           if (requestCase_ == 2) {
             insertBuilder_.mergeFrom(value);
-          } else {
-            insertBuilder_.setMessage(value);
           }
+          insertBuilder_.setMessage(value);
         }
         requestCase_ = 2;
         return this;
@@ -1092,7 +1143,7 @@ public final class Database {
           request_ = null;
         }
         requestCase_ = 2;
-        onChanged();
+        onChanged();;
         return insertBuilder_;
       }
 
@@ -1170,9 +1221,8 @@ public final class Database {
         } else {
           if (requestCase_ == 3) {
             queryBuilder_.mergeFrom(value);
-          } else {
-            queryBuilder_.setMessage(value);
           }
+          queryBuilder_.setMessage(value);
         }
         requestCase_ = 3;
         return this;
@@ -1234,7 +1284,7 @@ public final class Database {
           request_ = null;
         }
         requestCase_ = 3;
-        onChanged();
+        onChanged();;
         return queryBuilder_;
       }
 
@@ -1312,9 +1362,8 @@ public final class Database {
         } else {
           if (requestCase_ == 4) {
             ddlBuilder_.mergeFrom(value);
-          } else {
-            ddlBuilder_.setMessage(value);
           }
+          ddlBuilder_.setMessage(value);
         }
         requestCase_ = 4;
         return this;
@@ -1376,7 +1425,7 @@ public final class Database {
           request_ = null;
         }
         requestCase_ = 4;
-        onChanged();
+        onChanged();;
         return ddlBuilder_;
       }
 
@@ -1454,9 +1503,8 @@ public final class Database {
         } else {
           if (requestCase_ == 5) {
             deleteBuilder_.mergeFrom(value);
-          } else {
-            deleteBuilder_.setMessage(value);
           }
+          deleteBuilder_.setMessage(value);
         }
         requestCase_ = 5;
         return this;
@@ -1518,7 +1566,7 @@ public final class Database {
           request_ = null;
         }
         requestCase_ = 5;
-        onChanged();
+        onChanged();;
         return deleteBuilder_;
       }
       @java.lang.Override
@@ -1554,18 +1602,7 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new GreptimeRequest(input, extensionRegistry);
       }
     };
 
@@ -1648,6 +1685,70 @@ 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.Common.ResponseHeader.Builder subBuilder = null;
+              if (header_ != null) {
+                subBuilder = header_.toBuilder();
+              }
+              header_ = input.readMessage(io.greptime.v1.Common.ResponseHeader.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(header_);
+                header_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+            case 18: {
+              io.greptime.v1.Common.AffectedRows.Builder subBuilder = null;
+              if (responseCase_ == 2) {
+                subBuilder = ((io.greptime.v1.Common.AffectedRows) response_).toBuilder();
+              }
+              response_ =
+                  input.readMessage(io.greptime.v1.Common.AffectedRows.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom((io.greptime.v1.Common.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;
@@ -1723,7 +1824,7 @@ public final class Database {
      */
     @java.lang.Override
     public io.greptime.v1.Common.ResponseHeaderOrBuilder getHeaderOrBuilder() {
-      return header_ == null ? io.greptime.v1.Common.ResponseHeader.getDefaultInstance() : header_;
+      return getHeader();
     }
 
     public static final int AFFECTED_ROWS_FIELD_NUMBER = 2;
@@ -1777,7 +1878,7 @@ public final class Database {
       if (responseCase_ == 2) {
         output.writeMessage(2, (io.greptime.v1.Common.AffectedRows) response_);
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -1794,7 +1895,7 @@ public final class Database {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(2, (io.greptime.v1.Common.AffectedRows) response_);
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -1823,7 +1924,7 @@ public final class Database {
         case 0:
         default:
       }
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -1846,7 +1947,7 @@ public final class Database {
         case 0:
         default:
       }
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -1963,26 +2064,28 @@ 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();
-        bitField0_ = 0;
-        header_ = null;
-        if (headerBuilder_ != null) {
-          headerBuilder_.dispose();
+        if (headerBuilder_ == null) {
+          header_ = null;
+        } else {
+          header_ = null;
           headerBuilder_ = null;
         }
-        if (affectedRowsBuilder_ != null) {
-          affectedRowsBuilder_.clear();
-        }
         responseCase_ = 0;
         response_ = null;
         return this;
@@ -2011,30 +2114,23 @@ 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 (bitField0_ != 0) { buildPartial0(result); }
-        buildPartialOneofs(result);
+        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_;
         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();
@@ -2091,7 +2187,7 @@ public final class Database {
             break;
           }
         }
-        this.mergeUnknownFields(other.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -2106,44 +2202,17 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Database.GreptimeResponse parsedMessage = null;
         try {
-          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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Database.GreptimeResponse) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
       private int responseCase_ = 0;
@@ -2161,7 +2230,6 @@ public final class Database {
         return this;
       }
 
-      private int bitField0_;
 
       private io.greptime.v1.Common.ResponseHeader header_;
       private com.google.protobuf.SingleFieldBuilderV3<
@@ -2171,7 +2239,7 @@ public final class Database {
        * @return Whether the header field is set.
        */
       public boolean hasHeader() {
-        return ((bitField0_ & 0x00000001) != 0);
+        return headerBuilder_ != null || header_ != null;
       }
       /**
        * <code>.greptime.v1.ResponseHeader header = 1;</code>
@@ -2193,11 +2261,11 @@ public final class Database {
             throw new NullPointerException();
           }
           header_ = value;
+          onChanged();
         } else {
           headerBuilder_.setMessage(value);
         }
-        bitField0_ |= 0x00000001;
-        onChanged();
+
         return this;
       }
       /**
@@ -2207,11 +2275,11 @@ public final class Database {
           io.greptime.v1.Common.ResponseHeader.Builder builderForValue) {
         if (headerBuilder_ == null) {
           header_ = builderForValue.build();
+          onChanged();
         } else {
           headerBuilder_.setMessage(builderForValue.build());
         }
-        bitField0_ |= 0x00000001;
-        onChanged();
+
         return this;
       }
       /**
@@ -2219,38 +2287,38 @@ public final class Database {
        */
       public Builder mergeHeader(io.greptime.v1.Common.ResponseHeader value) {
         if (headerBuilder_ == null) {
-          if (((bitField0_ & 0x00000001) != 0) &&
-            header_ != null &&
-            header_ != io.greptime.v1.Common.ResponseHeader.getDefaultInstance()) {
-            getHeaderBuilder().mergeFrom(value);
+          if (header_ != null) {
+            header_ =
+              io.greptime.v1.Common.ResponseHeader.newBuilder(header_).mergeFrom(value).buildPartial();
           } else {
             header_ = value;
           }
+          onChanged();
         } else {
           headerBuilder_.mergeFrom(value);
         }
-        bitField0_ |= 0x00000001;
-        onChanged();
+
         return this;
       }
       /**
        * <code>.greptime.v1.ResponseHeader header = 1;</code>
        */
       public Builder clearHeader() {
-        bitField0_ = (bitField0_ & ~0x00000001);
-        header_ = null;
-        if (headerBuilder_ != null) {
-          headerBuilder_.dispose();
+        if (headerBuilder_ == null) {
+          header_ = null;
+          onChanged();
+        } else {
+          header_ = null;
           headerBuilder_ = null;
         }
-        onChanged();
+
         return this;
       }
       /**
        * <code>.greptime.v1.ResponseHeader header = 1;</code>
        */
       public io.greptime.v1.Common.ResponseHeader.Builder getHeaderBuilder() {
-        bitField0_ |= 0x00000001;
+        
         onChanged();
         return getHeaderFieldBuilder().getBuilder();
       }
@@ -2356,9 +2424,8 @@ public final class Database {
         } else {
           if (responseCase_ == 2) {
             affectedRowsBuilder_.mergeFrom(value);
-          } else {
-            affectedRowsBuilder_.setMessage(value);
           }
+          affectedRowsBuilder_.setMessage(value);
         }
         responseCase_ = 2;
         return this;
@@ -2420,7 +2487,7 @@ public final class Database {
           response_ = null;
         }
         responseCase_ = 2;
-        onChanged();
+        onChanged();;
         return affectedRowsBuilder_;
       }
       @java.lang.Override
@@ -2456,18 +2523,7 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new GreptimeResponse(input, extensionRegistry);
       }
     };
 
@@ -2563,6 +2619,68 @@ 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: {
+              queryCase_ = 2;
+              query_ = input.readBytes();
+              break;
+            }
+            case 26: {
+              io.greptime.v1.Prometheus.PromRangeQuery.Builder subBuilder = null;
+              if (queryCase_ == 3) {
+                subBuilder = ((io.greptime.v1.Prometheus.PromRangeQuery) query_).toBuilder();
+              }
+              query_ =
+                  input.readMessage(io.greptime.v1.Prometheus.PromRangeQuery.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom((io.greptime.v1.Prometheus.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;
@@ -2747,7 +2865,7 @@ public final class Database {
       if (queryCase_ == 3) {
         output.writeMessage(3, (io.greptime.v1.Prometheus.PromRangeQuery) query_);
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -2768,7 +2886,7 @@ public final class Database {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(3, (io.greptime.v1.Prometheus.PromRangeQuery) query_);
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -2800,7 +2918,7 @@ public final class Database {
         case 0:
         default:
       }
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -2827,7 +2945,7 @@ public final class Database {
         case 0:
         default:
       }
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -2944,21 +3062,22 @@ 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;
@@ -2987,25 +3106,24 @@ 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 (bitField0_ != 0) { buildPartial0(result); }
-        buildPartialOneofs(result);
+        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_;
         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();
@@ -3069,7 +3187,7 @@ public final class Database {
             break;
           }
         }
-        this.mergeUnknownFields(other.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -3084,48 +3202,17 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Database.QueryRequest parsedMessage = null;
         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 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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Database.QueryRequest) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
       private int queryCase_ = 0;
@@ -3143,7 +3230,6 @@ public final class Database {
         return this;
       }
 
-      private int bitField0_;
 
       /**
        * <code>string sql = 1;</code>
@@ -3205,8 +3291,10 @@ 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;
@@ -3230,8 +3318,10 @@ 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();
@@ -3261,8 +3351,10 @@ 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;
@@ -3354,9 +3446,8 @@ public final class Database {
         } else {
           if (queryCase_ == 3) {
             promRangeQueryBuilder_.mergeFrom(value);
-          } else {
-            promRangeQueryBuilder_.setMessage(value);
           }
+          promRangeQueryBuilder_.setMessage(value);
         }
         queryCase_ = 3;
         return this;
@@ -3418,7 +3509,7 @@ public final class Database {
           query_ = null;
         }
         queryCase_ = 3;
-        onChanged();
+        onChanged();;
         return promRangeQueryBuilder_;
       }
       @java.lang.Override
@@ -3454,18 +3545,7 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new QueryRequest(input, extensionRegistry);
       }
     };
 
@@ -3595,6 +3675,72 @@ 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<io.greptime.v1.Columns.Column>();
+                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;
@@ -3609,8 +3755,7 @@ public final class Database {
     }
 
     public static final int TABLE_NAME_FIELD_NUMBER = 1;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object tableName_ = "";
+    private volatile java.lang.Object tableName_;
     /**
      * <code>string table_name = 1;</code>
      * @return The tableName.
@@ -3648,7 +3793,6 @@ public final class Database {
     }
 
     public static final int COLUMNS_FIELD_NUMBER = 3;
-    @SuppressWarnings("serial")
     private java.util.List<io.greptime.v1.Columns.Column> columns_;
     /**
      * <pre>
@@ -3709,7 +3853,7 @@ public final class Database {
     }
 
     public static final int ROW_COUNT_FIELD_NUMBER = 4;
-    private int rowCount_ = 0;
+    private int rowCount_;
     /**
      * <pre>
      * The row_count of all columns, which include null and non-null values.
@@ -3725,7 +3869,7 @@ public final class Database {
     }
 
     public static final int REGION_NUMBER_FIELD_NUMBER = 5;
-    private int regionNumber_ = 0;
+    private int regionNumber_;
     /**
      * <pre>
      * The region number of current insert request.
@@ -3753,7 +3897,7 @@ public final class Database {
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tableName_)) {
+      if (!getTableNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, tableName_);
       }
       for (int i = 0; i < columns_.size(); i++) {
@@ -3765,7 +3909,7 @@ public final class Database {
       if (regionNumber_ != 0) {
         output.writeUInt32(5, regionNumber_);
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -3774,7 +3918,7 @@ public final class Database {
       if (size != -1) return size;
 
       size = 0;
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tableName_)) {
+      if (!getTableNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, tableName_);
       }
       for (int i = 0; i < columns_.size(); i++) {
@@ -3789,7 +3933,7 @@ public final class Database {
         size += com.google.protobuf.CodedOutputStream
           .computeUInt32Size(5, regionNumber_);
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -3812,7 +3956,7 @@ public final class Database {
           != other.getRowCount()) return false;
       if (getRegionNumber()
           != other.getRegionNumber()) return false;
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -3833,7 +3977,7 @@ public final class Database {
       hash = (53 * hash) + getRowCount();
       hash = (37 * hash) + REGION_NUMBER_FIELD_NUMBER;
       hash = (53 * hash) + getRegionNumber();
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -3950,28 +4094,35 @@ 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;
       }
 
@@ -3998,35 +4149,21 @@ 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);
-        buildPartialRepeatedFields(result);
-        if (bitField0_ != 0) { buildPartial0(result); }
-        onBuilt();
-        return result;
-      }
-
-      private void buildPartialRepeatedFields(io.greptime.v1.Database.InsertRequest result) {
+        int from_bitField0_ = bitField0_;
+        result.tableName_ = tableName_;
         if (columnsBuilder_ == null) {
-          if (((bitField0_ & 0x00000002) != 0)) {
+          if (((bitField0_ & 0x00000001) != 0)) {
             columns_ = java.util.Collections.unmodifiableList(columns_);
-            bitField0_ = (bitField0_ & ~0x00000002);
+            bitField0_ = (bitField0_ & ~0x00000001);
           }
           result.columns_ = columns_;
         } else {
           result.columns_ = columnsBuilder_.build();
         }
-      }
-
-      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_;
-        }
+        result.rowCount_ = rowCount_;
+        result.regionNumber_ = regionNumber_;
+        onBuilt();
+        return result;
       }
 
       @java.lang.Override
@@ -4075,14 +4212,13 @@ 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_ & ~0x00000002);
+              bitField0_ = (bitField0_ & ~0x00000001);
             } else {
               ensureColumnsIsMutable();
               columns_.addAll(other.columns_);
@@ -4095,7 +4231,7 @@ public final class Database {
               columnsBuilder_.dispose();
               columnsBuilder_ = null;
               columns_ = other.columns_;
-              bitField0_ = (bitField0_ & ~0x00000002);
+              bitField0_ = (bitField0_ & ~0x00000001);
               columnsBuilder_ = 
                 com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                    getColumnsFieldBuilder() : null;
@@ -4110,7 +4246,7 @@ public final class Database {
         if (other.getRegionNumber() != 0) {
           setRegionNumber(other.getRegionNumber());
         }
-        this.mergeUnknownFields(other.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -4125,58 +4261,17 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Database.InsertRequest parsedMessage = null;
         try {
-          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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Database.InsertRequest) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
       private int bitField0_;
@@ -4222,9 +4317,11 @@ 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;
       }
@@ -4233,8 +4330,8 @@ public final class Database {
        * @return This builder for chaining.
        */
       public Builder clearTableName() {
+        
         tableName_ = getDefaultInstance().getTableName();
-        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -4245,10 +4342,12 @@ 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;
       }
@@ -4256,9 +4355,9 @@ public final class Database {
       private java.util.List<io.greptime.v1.Columns.Column> columns_ =
         java.util.Collections.emptyList();
       private void ensureColumnsIsMutable() {
-        if (!((bitField0_ & 0x00000002) != 0)) {
+        if (!((bitField0_ & 0x00000001) != 0)) {
           columns_ = new java.util.ArrayList<io.greptime.v1.Columns.Column>(columns_);
-          bitField0_ |= 0x00000002;
+          bitField0_ |= 0x00000001;
          }
       }
 
@@ -4452,7 +4551,7 @@ public final class Database {
       public Builder clearColumns() {
         if (columnsBuilder_ == null) {
           columns_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000002);
+          bitField0_ = (bitField0_ & ~0x00000001);
           onChanged();
         } else {
           columnsBuilder_.clear();
@@ -4557,7 +4656,7 @@ 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_ & 0x00000002) != 0),
+                  ((bitField0_ & 0x00000001) != 0),
                   getParentForChildren(),
                   isClean());
           columns_ = null;
@@ -4592,7 +4691,6 @@ public final class Database {
       public Builder setRowCount(int value) {
         
         rowCount_ = value;
-        bitField0_ |= 0x00000004;
         onChanged();
         return this;
       }
@@ -4606,7 +4704,7 @@ public final class Database {
        * @return This builder for chaining.
        */
       public Builder clearRowCount() {
-        bitField0_ = (bitField0_ & ~0x00000004);
+        
         rowCount_ = 0;
         onChanged();
         return this;
@@ -4637,7 +4735,6 @@ public final class Database {
       public Builder setRegionNumber(int value) {
         
         regionNumber_ = value;
-        bitField0_ |= 0x00000008;
         onChanged();
         return this;
       }
@@ -4650,7 +4747,7 @@ public final class Database {
        * @return This builder for chaining.
        */
       public Builder clearRegionNumber() {
-        bitField0_ = (bitField0_ & ~0x00000008);
+        
         regionNumber_ = 0;
         onChanged();
         return this;
@@ -4688,18 +4785,7 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new InsertRequest(input, extensionRegistry);
       }
     };
 
@@ -4725,7 +4811,8 @@ public final class Database {
 
     /**
      * <pre>
-     * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+     * The table name to delete from. Catalog name and schema name are in the
+     * `RequestHeader`.
      * </pre>
      *
      * <code>string table_name = 1;</code>
@@ -4734,7 +4821,8 @@ public final class Database {
     java.lang.String getTableName();
     /**
      * <pre>
-     * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+     * The table name to delete from. Catalog name and schema name are in the
+     * `RequestHeader`.
      * </pre>
      *
      * <code>string table_name = 1;</code>
@@ -4836,6 +4924,72 @@ public final class Database {
     getUnknownFields() {
       return this.unknownFields;
     }
+    private DeleteRequest(
+        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 16: {
+
+              regionNumber_ = input.readUInt32();
+              break;
+            }
+            case 26: {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                keyColumns_ = new java.util.ArrayList<io.greptime.v1.Columns.Column>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              keyColumns_.add(
+                  input.readMessage(io.greptime.v1.Columns.Column.parser(), extensionRegistry));
+              break;
+            }
+            case 32: {
+
+              rowCount_ = 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)) {
+          keyColumns_ = java.util.Collections.unmodifiableList(keyColumns_);
+        }
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
       return io.greptime.v1.Database.internal_static_greptime_v1_DeleteRequest_descriptor;
@@ -4850,11 +5004,11 @@ public final class Database {
     }
 
     public static final int TABLE_NAME_FIELD_NUMBER = 1;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object tableName_ = "";
+    private volatile java.lang.Object tableName_;
     /**
      * <pre>
-     * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+     * The table name to delete from. Catalog name and schema name are in the
+     * `RequestHeader`.
      * </pre>
      *
      * <code>string table_name = 1;</code>
@@ -4875,7 +5029,8 @@ public final class Database {
     }
     /**
      * <pre>
-     * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+     * The table name to delete from. Catalog name and schema name are in the
+     * `RequestHeader`.
      * </pre>
      *
      * <code>string table_name = 1;</code>
@@ -4897,7 +5052,7 @@ public final class Database {
     }
 
     public static final int REGION_NUMBER_FIELD_NUMBER = 2;
-    private int regionNumber_ = 0;
+    private int regionNumber_;
     /**
      * <pre>
      * The region number of current delete request.
@@ -4912,7 +5067,6 @@ public final class Database {
     }
 
     public static final int KEY_COLUMNS_FIELD_NUMBER = 3;
-    @SuppressWarnings("serial")
     private java.util.List<io.greptime.v1.Columns.Column> keyColumns_;
     /**
      * <pre>
@@ -4973,7 +5127,7 @@ public final class Database {
     }
 
     public static final int ROW_COUNT_FIELD_NUMBER = 4;
-    private int rowCount_ = 0;
+    private int rowCount_;
     /**
      * <pre>
      * The row count of all columns above.
@@ -5001,7 +5155,7 @@ public final class Database {
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tableName_)) {
+      if (!getTableNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, tableName_);
       }
       if (regionNumber_ != 0) {
@@ -5013,7 +5167,7 @@ public final class Database {
       if (rowCount_ != 0) {
         output.writeUInt32(4, rowCount_);
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -5022,7 +5176,7 @@ public final class Database {
       if (size != -1) return size;
 
       size = 0;
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tableName_)) {
+      if (!getTableNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, tableName_);
       }
       if (regionNumber_ != 0) {
@@ -5037,7 +5191,7 @@ public final class Database {
         size += com.google.protobuf.CodedOutputStream
           .computeUInt32Size(4, rowCount_);
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -5060,7 +5214,7 @@ public final class Database {
           .equals(other.getKeyColumnsList())) return false;
       if (getRowCount()
           != other.getRowCount()) return false;
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -5081,7 +5235,7 @@ public final class Database {
       }
       hash = (37 * hash) + ROW_COUNT_FIELD_NUMBER;
       hash = (53 * hash) + getRowCount();
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -5198,28 +5352,35 @@ public final class Database {
 
       // 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) {
+          getKeyColumnsFieldBuilder();
+        }
       }
       @java.lang.Override
       public Builder clear() {
         super.clear();
-        bitField0_ = 0;
         tableName_ = "";
+
         regionNumber_ = 0;
+
         if (keyColumnsBuilder_ == null) {
           keyColumns_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
         } else {
-          keyColumns_ = null;
           keyColumnsBuilder_.clear();
         }
-        bitField0_ = (bitField0_ & ~0x00000004);
         rowCount_ = 0;
+
         return this;
       }
 
@@ -5246,35 +5407,21 @@ public final class Database {
       @java.lang.Override
       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) {
+        int from_bitField0_ = bitField0_;
+        result.tableName_ = tableName_;
+        result.regionNumber_ = regionNumber_;
         if (keyColumnsBuilder_ == null) {
-          if (((bitField0_ & 0x00000004) != 0)) {
+          if (((bitField0_ & 0x00000001) != 0)) {
             keyColumns_ = java.util.Collections.unmodifiableList(keyColumns_);
-            bitField0_ = (bitField0_ & ~0x00000004);
+            bitField0_ = (bitField0_ & ~0x00000001);
           }
           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_;
-        }
+        result.rowCount_ = rowCount_;
+        onBuilt();
+        return result;
       }
 
       @java.lang.Override
@@ -5323,7 +5470,6 @@ public final class Database {
         if (other == io.greptime.v1.Database.DeleteRequest.getDefaultInstance()) return this;
         if (!other.getTableName().isEmpty()) {
           tableName_ = other.tableName_;
-          bitField0_ |= 0x00000001;
           onChanged();
         }
         if (other.getRegionNumber() != 0) {
@@ -5333,7 +5479,7 @@ public final class Database {
           if (!other.keyColumns_.isEmpty()) {
             if (keyColumns_.isEmpty()) {
               keyColumns_ = other.keyColumns_;
-              bitField0_ = (bitField0_ & ~0x00000004);
+              bitField0_ = (bitField0_ & ~0x00000001);
             } else {
               ensureKeyColumnsIsMutable();
               keyColumns_.addAll(other.keyColumns_);
@@ -5346,7 +5492,7 @@ public final class Database {
               keyColumnsBuilder_.dispose();
               keyColumnsBuilder_ = null;
               keyColumns_ = other.keyColumns_;
-              bitField0_ = (bitField0_ & ~0x00000004);
+              bitField0_ = (bitField0_ & ~0x00000001);
               keyColumnsBuilder_ = 
                 com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                    getKeyColumnsFieldBuilder() : null;
@@ -5358,7 +5504,7 @@ public final class Database {
         if (other.getRowCount() != 0) {
           setRowCount(other.getRowCount());
         }
-        this.mergeUnknownFields(other.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -5373,58 +5519,17 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Database.DeleteRequest parsedMessage = null;
         try {
-          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 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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Database.DeleteRequest) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
       private int bitField0_;
@@ -5432,7 +5537,8 @@ public final class Database {
       private java.lang.Object tableName_ = "";
       /**
        * <pre>
-       * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+       * The table name to delete from. Catalog name and schema name are in the
+       * `RequestHeader`.
        * </pre>
        *
        * <code>string table_name = 1;</code>
@@ -5452,7 +5558,8 @@ public final class Database {
       }
       /**
        * <pre>
-       * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+       * The table name to delete from. Catalog name and schema name are in the
+       * `RequestHeader`.
        * </pre>
        *
        * <code>string table_name = 1;</code>
@@ -5473,7 +5580,8 @@ public final class Database {
       }
       /**
        * <pre>
-       * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+       * The table name to delete from. Catalog name and schema name are in the
+       * `RequestHeader`.
        * </pre>
        *
        * <code>string table_name = 1;</code>
@@ -5482,29 +5590,33 @@ 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;
       }
       /**
        * <pre>
-       * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+       * The table name to delete from. Catalog name and schema name are in the
+       * `RequestHeader`.
        * </pre>
        *
        * <code>string table_name = 1;</code>
        * @return This builder for chaining.
        */
       public Builder clearTableName() {
+        
         tableName_ = getDefaultInstance().getTableName();
-        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
       /**
        * <pre>
-       * The table name to delete from. Catalog name and schema name are in the `RequestHeader`.
+       * The table name to delete from. Catalog name and schema name are in the
+       * `RequestHeader`.
        * </pre>
        *
        * <code>string table_name = 1;</code>
@@ -5513,10 +5625,12 @@ 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;
       }
@@ -5546,7 +5660,6 @@ public final class Database {
       public Builder setRegionNumber(int value) {
         
         regionNumber_ = value;
-        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -5559,7 +5672,7 @@ public final class Database {
        * @return This builder for chaining.
        */
       public Builder clearRegionNumber() {
-        bitField0_ = (bitField0_ & ~0x00000002);
+        
         regionNumber_ = 0;
         onChanged();
         return this;
@@ -5568,9 +5681,9 @@ public final class Database {
       private java.util.List<io.greptime.v1.Columns.Column> keyColumns_ =
         java.util.Collections.emptyList();
       private void ensureKeyColumnsIsMutable() {
-        if (!((bitField0_ & 0x00000004) != 0)) {
+        if (!((bitField0_ & 0x00000001) != 0)) {
           keyColumns_ = new java.util.ArrayList<io.greptime.v1.Columns.Column>(keyColumns_);
-          bitField0_ |= 0x00000004;
+          bitField0_ |= 0x00000001;
          }
       }
 
@@ -5764,7 +5877,7 @@ public final class Database {
       public Builder clearKeyColumns() {
         if (keyColumnsBuilder_ == null) {
           keyColumns_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000004);
+          bitField0_ = (bitField0_ & ~0x00000001);
           onChanged();
         } else {
           keyColumnsBuilder_.clear();
@@ -5869,7 +5982,7 @@ public final class Database {
           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),
+                  ((bitField0_ & 0x00000001) != 0),
                   getParentForChildren(),
                   isClean());
           keyColumns_ = null;
@@ -5902,7 +6015,6 @@ public final class Database {
       public Builder setRowCount(int value) {
         
         rowCount_ = value;
-        bitField0_ |= 0x00000008;
         onChanged();
         return this;
       }
@@ -5915,7 +6027,7 @@ public final class Database {
        * @return This builder for chaining.
        */
       public Builder clearRowCount() {
-        bitField0_ = (bitField0_ & ~0x00000008);
+        
         rowCount_ = 0;
         onChanged();
         return this;
@@ -5953,18 +6065,7 @@ public final class Database {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new DeleteRequest(input, extensionRegistry);
       }
     };
 
diff --git a/java/src/main/java/io/greptime/v1/Ddl.java b/java/src/main/java/io/greptime/v1/Ddl.java
index ee8e6ab..0b148b5 100644
--- a/java/src/main/java/io/greptime/v1/Ddl.java
+++ b/java/src/main/java/io/greptime/v1/Ddl.java
@@ -97,8 +97,9 @@ public final class Ddl {
   }
   /**
    * <pre>
-   * "Data Definition Language" requests, that create, modify or delete the database structures but not the data.
-   * `DdlRequest` could carry more information than plain SQL, for example, the "table_id" in `CreateTableExpr`.
+   * "Data Definition Language" requests, that create, modify or delete the
+   * database structures but not the data. `DdlRequest` could carry more
+   * information than plain SQL, for example, the "table_id" in `CreateTableExpr`.
    * So create a new DDL expr if you need it.
    * </pre>
    *
@@ -128,6 +129,113 @@ 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;
@@ -372,7 +480,7 @@ public final class Ddl {
       if (exprCase_ == 5) {
         output.writeMessage(5, (io.greptime.v1.Ddl.FlushTableExpr) expr_);
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -401,7 +509,7 @@ public final class Ddl {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(5, (io.greptime.v1.Ddl.FlushTableExpr) expr_);
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -441,7 +549,7 @@ public final class Ddl {
         case 0:
         default:
       }
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -476,7 +584,7 @@ public final class Ddl {
         case 0:
         default:
       }
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -573,8 +681,9 @@ public final class Ddl {
     }
     /**
      * <pre>
-     * "Data Definition Language" requests, that create, modify or delete the database structures but not the data.
-     * `DdlRequest` could carry more information than plain SQL, for example, the "table_id" in `CreateTableExpr`.
+     * "Data Definition Language" requests, that create, modify or delete the
+     * database structures but not the data. `DdlRequest` could carry more
+     * information than plain SQL, for example, the "table_id" in `CreateTableExpr`.
      * So create a new DDL expr if you need it.
      * </pre>
      *
@@ -599,33 +708,22 @@ 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;
@@ -654,41 +752,46 @@ 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 (bitField0_ != 0) { buildPartial0(result); }
-        buildPartialOneofs(result);
+        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_;
         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();
@@ -758,7 +861,7 @@ public final class Ddl {
             break;
           }
         }
-        this.mergeUnknownFields(other.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -773,65 +876,17 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Ddl.DdlRequest parsedMessage = null;
         try {
-          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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Ddl.DdlRequest) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
       private int exprCase_ = 0;
@@ -849,7 +904,6 @@ 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_;
@@ -925,9 +979,8 @@ public final class Ddl {
         } else {
           if (exprCase_ == 1) {
             createDatabaseBuilder_.mergeFrom(value);
-          } else {
-            createDatabaseBuilder_.setMessage(value);
           }
+          createDatabaseBuilder_.setMessage(value);
         }
         exprCase_ = 1;
         return this;
@@ -989,7 +1042,7 @@ public final class Ddl {
           expr_ = null;
         }
         exprCase_ = 1;
-        onChanged();
+        onChanged();;
         return createDatabaseBuilder_;
       }
 
@@ -1067,9 +1120,8 @@ public final class Ddl {
         } else {
           if (exprCase_ == 2) {
             createTableBuilder_.mergeFrom(value);
-          } else {
-            createTableBuilder_.setMessage(value);
           }
+          createTableBuilder_.setMessage(value);
         }
         exprCase_ = 2;
         return this;
@@ -1131,7 +1183,7 @@ public final class Ddl {
           expr_ = null;
         }
         exprCase_ = 2;
-        onChanged();
+        onChanged();;
         return createTableBuilder_;
       }
 
@@ -1209,9 +1261,8 @@ public final class Ddl {
         } else {
           if (exprCase_ == 3) {
             alterBuilder_.mergeFrom(value);
-          } else {
-            alterBuilder_.setMessage(value);
           }
+          alterBuilder_.setMessage(value);
         }
         exprCase_ = 3;
         return this;
@@ -1273,7 +1324,7 @@ public final class Ddl {
           expr_ = null;
         }
         exprCase_ = 3;
-        onChanged();
+        onChanged();;
         return alterBuilder_;
       }
 
@@ -1351,9 +1402,8 @@ public final class Ddl {
         } else {
           if (exprCase_ == 4) {
             dropTableBuilder_.mergeFrom(value);
-          } else {
-            dropTableBuilder_.setMessage(value);
           }
+          dropTableBuilder_.setMessage(value);
         }
         exprCase_ = 4;
         return this;
@@ -1415,7 +1465,7 @@ public final class Ddl {
           expr_ = null;
         }
         exprCase_ = 4;
-        onChanged();
+        onChanged();;
         return dropTableBuilder_;
       }
 
@@ -1493,9 +1543,8 @@ public final class Ddl {
         } else {
           if (exprCase_ == 5) {
             flushTableBuilder_.mergeFrom(value);
-          } else {
-            flushTableBuilder_.setMessage(value);
           }
+          flushTableBuilder_.setMessage(value);
         }
         exprCase_ = 5;
         return this;
@@ -1557,7 +1606,7 @@ public final class Ddl {
           expr_ = null;
         }
         exprCase_ = 5;
-        onChanged();
+        onChanged();;
         return flushTableBuilder_;
       }
       @java.lang.Override
@@ -1593,18 +1642,7 @@ public final class Ddl {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new DdlRequest(input, extensionRegistry);
       }
     };
 
@@ -1766,14 +1804,14 @@ public final class Ddl {
     /**
      * <code>map&lt;string, string&gt; table_options = 9;</code>
      */
-    /* nullable */
-java.lang.String getTableOptionsOrDefault(
+
+    java.lang.String getTableOptionsOrDefault(
         java.lang.String key,
-        /* nullable */
-java.lang.String defaultValue);
+        java.lang.String defaultValue);
     /**
      * <code>map&lt;string, string&gt; table_options = 9;</code>
      */
+
     java.lang.String getTableOptionsOrThrow(
         java.lang.String key);
 
@@ -1857,6 +1895,159 @@ java.lang.String defaultValue);
     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<io.greptime.v1.Columns.ColumnDef>();
+                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<java.lang.String, java.lang.String>
+              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;
+            }
+            case 98: {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              engine_ = 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 {
+        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;
@@ -1883,8 +2074,7 @@ java.lang.String defaultValue);
     }
 
     public static final int CATALOG_NAME_FIELD_NUMBER = 1;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object catalogName_ = "";
+    private volatile java.lang.Object catalogName_;
     /**
      * <code>string catalog_name = 1;</code>
      * @return The catalogName.
@@ -1922,8 +2112,7 @@ java.lang.String defaultValue);
     }
 
     public static final int SCHEMA_NAME_FIELD_NUMBER = 2;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object schemaName_ = "";
+    private volatile java.lang.Object schemaName_;
     /**
      * <code>string schema_name = 2;</code>
      * @return The schemaName.
@@ -1961,8 +2150,7 @@ java.lang.String defaultValue);
     }
 
     public static final int TABLE_NAME_FIELD_NUMBER = 3;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object tableName_ = "";
+    private volatile java.lang.Object tableName_;
     /**
      * <code>string table_name = 3;</code>
      * @return The tableName.
@@ -2000,8 +2188,7 @@ java.lang.String defaultValue);
     }
 
     public static final int DESC_FIELD_NUMBER = 4;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object desc_ = "";
+    private volatile java.lang.Object desc_;
     /**
      * <code>string desc = 4;</code>
      * @return The desc.
@@ -2039,7 +2226,6 @@ java.lang.String defaultValue);
     }
 
     public static final int COLUMN_DEFS_FIELD_NUMBER = 5;
-    @SuppressWarnings("serial")
     private java.util.List<io.greptime.v1.Columns.ColumnDef> columnDefs_;
     /**
      * <code>repeated .greptime.v1.ColumnDef column_defs = 5;</code>
@@ -2080,8 +2266,7 @@ java.lang.String defaultValue);
     }
 
     public static final int TIME_INDEX_FIELD_NUMBER = 6;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object timeIndex_ = "";
+    private volatile java.lang.Object timeIndex_;
     /**
      * <code>string time_index = 6;</code>
      * @return The timeIndex.
@@ -2119,7 +2304,6 @@ java.lang.String defaultValue);
     }
 
     public static final int PRIMARY_KEYS_FIELD_NUMBER = 7;
-    @SuppressWarnings("serial")
     private com.google.protobuf.LazyStringList primaryKeys_;
     /**
      * <code>repeated string primary_keys = 7;</code>
@@ -2155,7 +2339,7 @@ java.lang.String defaultValue);
     }
 
     public static final int CREATE_IF_NOT_EXISTS_FIELD_NUMBER = 8;
-    private boolean createIfNotExists_ = false;
+    private boolean createIfNotExists_;
     /**
      * <code>bool create_if_not_exists = 8;</code>
      * @return The createIfNotExists.
@@ -2177,7 +2361,6 @@ java.lang.String defaultValue);
                   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<java.lang.String, java.lang.String>
@@ -2188,16 +2371,18 @@ java.lang.String defaultValue);
       }
       return tableOptions_;
     }
+
     public int getTableOptionsCount() {
       return internalGetTableOptions().getMap().size();
     }
     /**
      * <code>map&lt;string, string&gt; table_options = 9;</code>
      */
+
     @java.lang.Override
     public boolean containsTableOptions(
         java.lang.String key) {
-      if (key == null) { throw new NullPointerException("map key"); }
+      if (key == null) { throw new java.lang.NullPointerException(); }
       return internalGetTableOptions().getMap().containsKey(key);
     }
     /**
@@ -2212,6 +2397,7 @@ java.lang.String defaultValue);
      * <code>map&lt;string, string&gt; table_options = 9;</code>
      */
     @java.lang.Override
+
     public java.util.Map<java.lang.String, java.lang.String> getTableOptionsMap() {
       return internalGetTableOptions().getMap();
     }
@@ -2219,12 +2405,11 @@ java.lang.String defaultValue);
      * <code>map&lt;string, string&gt; table_options = 9;</code>
      */
     @java.lang.Override
-    public /* nullable */
-java.lang.String getTableOptionsOrDefault(
+
+    public java.lang.String getTableOptionsOrDefault(
         java.lang.String key,
-        /* nullable */
-java.lang.String defaultValue) {
-      if (key == null) { throw new NullPointerException("map key"); }
+        java.lang.String defaultValue) {
+      if (key == null) { throw new java.lang.NullPointerException(); }
       java.util.Map<java.lang.String, java.lang.String> map =
           internalGetTableOptions().getMap();
       return map.containsKey(key) ? map.get(key) : defaultValue;
@@ -2233,9 +2418,10 @@ java.lang.String defaultValue) {
      * <code>map&lt;string, string&gt; table_options = 9;</code>
      */
     @java.lang.Override
+
     public java.lang.String getTableOptionsOrThrow(
         java.lang.String key) {
-      if (key == null) { throw new NullPointerException("map key"); }
+      if (key == null) { throw new java.lang.NullPointerException(); }
       java.util.Map<java.lang.String, java.lang.String> map =
           internalGetTableOptions().getMap();
       if (!map.containsKey(key)) {
@@ -2267,11 +2453,10 @@ java.lang.String defaultValue) {
      */
     @java.lang.Override
     public io.greptime.v1.Ddl.TableIdOrBuilder getTableIdOrBuilder() {
-      return tableId_ == null ? io.greptime.v1.Ddl.TableId.getDefaultInstance() : tableId_;
+      return getTableId();
     }
 
     public static final int REGION_IDS_FIELD_NUMBER = 11;
-    @SuppressWarnings("serial")
     private com.google.protobuf.Internal.IntList regionIds_;
     /**
      * <code>repeated uint32 region_ids = 11;</code>
@@ -2300,8 +2485,7 @@ java.lang.String defaultValue) {
     private int regionIdsMemoizedSerializedSize = -1;
 
     public static final int ENGINE_FIELD_NUMBER = 12;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object engine_ = "";
+    private volatile java.lang.Object engine_;
     /**
      * <code>string engine = 12;</code>
      * @return The engine.
@@ -2353,22 +2537,22 @@ java.lang.String defaultValue) {
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
       getSerializedSize();
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(catalogName_)) {
+      if (!getCatalogNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, catalogName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(schemaName_)) {
+      if (!getSchemaNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 2, schemaName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tableName_)) {
+      if (!getTableNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 3, tableName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(desc_)) {
+      if (!getDescBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 4, desc_);
       }
       for (int i = 0; i < columnDefs_.size(); i++) {
         output.writeMessage(5, columnDefs_.get(i));
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(timeIndex_)) {
+      if (!getTimeIndexBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 6, timeIndex_);
       }
       for (int i = 0; i < primaryKeys_.size(); i++) {
@@ -2393,10 +2577,10 @@ java.lang.String defaultValue) {
       for (int i = 0; i < regionIds_.size(); i++) {
         output.writeUInt32NoTag(regionIds_.getInt(i));
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(engine_)) {
+      if (!getEngineBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 12, engine_);
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -2405,23 +2589,23 @@ java.lang.String defaultValue) {
       if (size != -1) return size;
 
       size = 0;
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(catalogName_)) {
+      if (!getCatalogNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, catalogName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(schemaName_)) {
+      if (!getSchemaNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, schemaName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tableName_)) {
+      if (!getTableNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, tableName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(desc_)) {
+      if (!getDescBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, desc_);
       }
       for (int i = 0; i < columnDefs_.size(); i++) {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(5, columnDefs_.get(i));
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(timeIndex_)) {
+      if (!getTimeIndexBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, timeIndex_);
       }
       {
@@ -2464,10 +2648,10 @@ java.lang.String defaultValue) {
         }
         regionIdsMemoizedSerializedSize = dataSize;
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(engine_)) {
+      if (!getEngineBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(12, engine_);
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -2509,7 +2693,7 @@ java.lang.String defaultValue) {
           .equals(other.getRegionIdsList())) return false;
       if (!getEngine()
           .equals(other.getEngine())) return false;
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -2555,7 +2739,7 @@ java.lang.String defaultValue) {
       }
       hash = (37 * hash) + ENGINE_FIELD_NUMBER;
       hash = (53 * hash) + getEngine().hashCode();
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -2694,41 +2878,54 @@ java.lang.String defaultValue) {
 
       // 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_ & ~0x00000040);
+        bitField0_ = (bitField0_ & ~0x00000002);
         createIfNotExists_ = false;
+
         internalGetMutableTableOptions().clear();
-        tableId_ = null;
-        if (tableIdBuilder_ != null) {
-          tableIdBuilder_.dispose();
+        if (tableIdBuilder_ == null) {
+          tableId_ = null;
+        } else {
+          tableId_ = null;
           tableIdBuilder_ = null;
         }
         regionIds_ = emptyIntList();
+        bitField0_ = (bitField0_ & ~0x00000008);
         engine_ = "";
+
         return this;
       }
 
@@ -2755,66 +2952,42 @@ java.lang.String defaultValue) {
       @java.lang.Override
       public io.greptime.v1.Ddl.CreateTableExpr buildPartial() {
         io.greptime.v1.Ddl.CreateTableExpr result = new io.greptime.v1.Ddl.CreateTableExpr(this);
-        buildPartialRepeatedFields(result);
-        if (bitField0_ != 0) { buildPartial0(result); }
-        onBuilt();
-        return result;
-      }
-
-      private void buildPartialRepeatedFields(io.greptime.v1.Ddl.CreateTableExpr result) {
+        int from_bitField0_ = bitField0_;
+        result.catalogName_ = catalogName_;
+        result.schemaName_ = schemaName_;
+        result.tableName_ = tableName_;
+        result.desc_ = desc_;
         if (columnDefsBuilder_ == null) {
-          if (((bitField0_ & 0x00000010) != 0)) {
+          if (((bitField0_ & 0x00000001) != 0)) {
             columnDefs_ = java.util.Collections.unmodifiableList(columnDefs_);
-            bitField0_ = (bitField0_ & ~0x00000010);
+            bitField0_ = (bitField0_ & ~0x00000001);
           }
           result.columnDefs_ = columnDefs_;
         } else {
           result.columnDefs_ = columnDefsBuilder_.build();
         }
-        if (((bitField0_ & 0x00000040) != 0)) {
+        result.timeIndex_ = timeIndex_;
+        if (((bitField0_ & 0x00000002) != 0)) {
           primaryKeys_ = primaryKeys_.getUnmodifiableView();
-          bitField0_ = (bitField0_ & ~0x00000040);
+          bitField0_ = (bitField0_ & ~0x00000002);
         }
         result.primaryKeys_ = primaryKeys_;
-        if (((bitField0_ & 0x00000400) != 0)) {
+        result.createIfNotExists_ = createIfNotExists_;
+        result.tableOptions_ = internalGetTableOptions();
+        result.tableOptions_.makeImmutable();
+        if (tableIdBuilder_ == null) {
+          result.tableId_ = tableId_;
+        } else {
+          result.tableId_ = tableIdBuilder_.build();
+        }
+        if (((bitField0_ & 0x00000008) != 0)) {
           regionIds_.makeImmutable();
-          bitField0_ = (bitField0_ & ~0x00000400);
+          bitField0_ = (bitField0_ & ~0x00000008);
         }
         result.regionIds_ = regionIds_;
-      }
-
-      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_;
-        }
+        result.engine_ = engine_;
+        onBuilt();
+        return result;
       }
 
       @java.lang.Override
@@ -2863,29 +3036,25 @@ java.lang.String defaultValue) {
         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_ & ~0x00000010);
+              bitField0_ = (bitField0_ & ~0x00000001);
             } else {
               ensureColumnDefsIsMutable();
               columnDefs_.addAll(other.columnDefs_);
@@ -2898,7 +3067,7 @@ java.lang.String defaultValue) {
               columnDefsBuilder_.dispose();
               columnDefsBuilder_ = null;
               columnDefs_ = other.columnDefs_;
-              bitField0_ = (bitField0_ & ~0x00000010);
+              bitField0_ = (bitField0_ & ~0x00000001);
               columnDefsBuilder_ = 
                 com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
                    getColumnDefsFieldBuilder() : null;
@@ -2909,13 +3078,12 @@ java.lang.String defaultValue) {
         }
         if (!other.getTimeIndex().isEmpty()) {
           timeIndex_ = other.timeIndex_;
-          bitField0_ |= 0x00000020;
           onChanged();
         }
         if (!other.primaryKeys_.isEmpty()) {
           if (primaryKeys_.isEmpty()) {
             primaryKeys_ = other.primaryKeys_;
-            bitField0_ = (bitField0_ & ~0x00000040);
+            bitField0_ = (bitField0_ & ~0x00000002);
           } else {
             ensurePrimaryKeysIsMutable();
             primaryKeys_.addAll(other.primaryKeys_);
@@ -2927,14 +3095,13 @@ java.lang.String defaultValue) {
         }
         internalGetMutableTableOptions().mergeFrom(
             other.internalGetTableOptions());
-        bitField0_ |= 0x00000100;
         if (other.hasTableId()) {
           mergeTableId(other.getTableId());
         }
         if (!other.regionIds_.isEmpty()) {
           if (regionIds_.isEmpty()) {
             regionIds_ = other.regionIds_;
-            bitField0_ = (bitField0_ & ~0x00000400);
+            bitField0_ = (bitField0_ & ~0x00000008);
           } else {
             ensureRegionIdsIsMutable();
             regionIds_.addAll(other.regionIds_);
@@ -2943,10 +3110,9 @@ java.lang.String defaultValue) {
         }
         if (!other.getEngine().isEmpty()) {
           engine_ = other.engine_;
-          bitField0_ |= 0x00000800;
           onChanged();
         }
-        this.mergeUnknownFields(other.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -2961,116 +3127,17 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Ddl.CreateTableExpr parsedMessage = null;
         try {
-          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<java.lang.String, java.lang.String>
-                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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Ddl.CreateTableExpr) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
       private int bitField0_;
@@ -3116,9 +3183,11 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -3127,8 +3196,8 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearCatalogName() {
+        
         catalogName_ = getDefaultInstance().getCatalogName();
-        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -3139,10 +3208,12 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -3188,9 +3259,11 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -3199,8 +3272,8 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearSchemaName() {
+        
         schemaName_ = getDefaultInstance().getSchemaName();
-        bitField0_ = (bitField0_ & ~0x00000002);
         onChanged();
         return this;
       }
@@ -3211,10 +3284,12 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -3260,9 +3335,11 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -3271,8 +3348,8 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearTableName() {
+        
         tableName_ = getDefaultInstance().getTableName();
-        bitField0_ = (bitField0_ & ~0x00000004);
         onChanged();
         return this;
       }
@@ -3283,10 +3360,12 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -3332,9 +3411,11 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -3343,8 +3424,8 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearDesc() {
+        
         desc_ = getDefaultInstance().getDesc();
-        bitField0_ = (bitField0_ & ~0x00000008);
         onChanged();
         return this;
       }
@@ -3355,10 +3436,12 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -3366,9 +3449,9 @@ java.lang.String defaultValue) {
       private java.util.List<io.greptime.v1.Columns.ColumnDef> columnDefs_ =
         java.util.Collections.emptyList();
       private void ensureColumnDefsIsMutable() {
-        if (!((bitField0_ & 0x00000010) != 0)) {
+        if (!((bitField0_ & 0x00000001) != 0)) {
           columnDefs_ = new java.util.ArrayList<io.greptime.v1.Columns.ColumnDef>(columnDefs_);
-          bitField0_ |= 0x00000010;
+          bitField0_ |= 0x00000001;
          }
       }
 
@@ -3518,7 +3601,7 @@ java.lang.String defaultValue) {
       public Builder clearColumnDefs() {
         if (columnDefsBuilder_ == null) {
           columnDefs_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000010);
+          bitField0_ = (bitField0_ & ~0x00000001);
           onChanged();
         } else {
           columnDefsBuilder_.clear();
@@ -3595,7 +3678,7 @@ java.lang.String defaultValue) {
           columnDefsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
               io.greptime.v1.Columns.ColumnDef, io.greptime.v1.Columns.ColumnDef.Builder, io.greptime.v1.Columns.ColumnDefOrBuilder>(
                   columnDefs_,
-                  ((bitField0_ & 0x00000010) != 0),
+                  ((bitField0_ & 0x00000001) != 0),
                   getParentForChildren(),
                   isClean());
           columnDefs_ = null;
@@ -3644,9 +3727,11 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -3655,8 +3740,8 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearTimeIndex() {
+        
         timeIndex_ = getDefaultInstance().getTimeIndex();
-        bitField0_ = (bitField0_ & ~0x00000020);
         onChanged();
         return this;
       }
@@ -3667,19 +3752,21 @@ java.lang.String defaultValue) {
        */
       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_ & 0x00000040) != 0)) {
+        if (!((bitField0_ & 0x00000002) != 0)) {
           primaryKeys_ = new com.google.protobuf.LazyStringArrayList(primaryKeys_);
-          bitField0_ |= 0x00000040;
+          bitField0_ |= 0x00000002;
          }
       }
       /**
@@ -3722,8 +3809,10 @@ java.lang.String defaultValue) {
        */
       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;
@@ -3735,8 +3824,10 @@ java.lang.String defaultValue) {
        */
       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;
@@ -3760,7 +3851,7 @@ java.lang.String defaultValue) {
        */
       public Builder clearPrimaryKeys() {
         primaryKeys_ = com.google.protobuf.LazyStringArrayList.EMPTY;
-        bitField0_ = (bitField0_ & ~0x00000040);
+        bitField0_ = (bitField0_ & ~0x00000002);
         onChanged();
         return this;
       }
@@ -3771,8 +3862,10 @@ java.lang.String defaultValue) {
        */
       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();
@@ -3796,7 +3889,6 @@ java.lang.String defaultValue) {
       public Builder setCreateIfNotExists(boolean value) {
         
         createIfNotExists_ = value;
-        bitField0_ |= 0x00000080;
         onChanged();
         return this;
       }
@@ -3805,7 +3897,7 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearCreateIfNotExists() {
-        bitField0_ = (bitField0_ & ~0x00000080);
+        
         createIfNotExists_ = false;
         onChanged();
         return this;
@@ -3814,7 +3906,7 @@ java.lang.String defaultValue) {
       private com.google.protobuf.MapField<
           java.lang.String, java.lang.String> tableOptions_;
       private com.google.protobuf.MapField<java.lang.String, java.lang.String>
-          internalGetTableOptions() {
+      internalGetTableOptions() {
         if (tableOptions_ == null) {
           return com.google.protobuf.MapField.emptyMapField(
               TableOptionsDefaultEntryHolder.defaultEntry);
@@ -3822,7 +3914,8 @@ java.lang.String defaultValue) {
         return tableOptions_;
       }
       private com.google.protobuf.MapField<java.lang.String, java.lang.String>
-          internalGetMutableTableOptions() {
+      internalGetMutableTableOptions() {
+        onChanged();;
         if (tableOptions_ == null) {
           tableOptions_ = com.google.protobuf.MapField.newMapField(
               TableOptionsDefaultEntryHolder.defaultEntry);
@@ -3830,20 +3923,20 @@ java.lang.String defaultValue) {
         if (!tableOptions_.isMutable()) {
           tableOptions_ = tableOptions_.copy();
         }
-        bitField0_ |= 0x00000100;
-        onChanged();
         return tableOptions_;
       }
+
       public int getTableOptionsCount() {
         return internalGetTableOptions().getMap().size();
       }
       /**
        * <code>map&lt;string, string&gt; table_options = 9;</code>
        */
+
       @java.lang.Override
       public boolean containsTableOptions(
           java.lang.String key) {
-        if (key == null) { throw new NullPointerException("map key"); }
+        if (key == null) { throw new java.lang.NullPointerException(); }
         return internalGetTableOptions().getMap().containsKey(key);
       }
       /**
@@ -3858,6 +3951,7 @@ java.lang.String defaultValue) {
        * <code>map&lt;string, string&gt; table_options = 9;</code>
        */
       @java.lang.Override
+
       public java.util.Map<java.lang.String, java.lang.String> getTableOptionsMap() {
         return internalGetTableOptions().getMap();
       }
@@ -3865,12 +3959,11 @@ java.lang.String defaultValue) {
        * <code>map&lt;string, string&gt; table_options = 9;</code>
        */
       @java.lang.Override
-      public /* nullable */
-java.lang.String getTableOptionsOrDefault(
+
+      public java.lang.String getTableOptionsOrDefault(
           java.lang.String key,
-          /* nullable */
-java.lang.String defaultValue) {
-        if (key == null) { throw new NullPointerException("map key"); }
+          java.lang.String defaultValue) {
+        if (key == null) { throw new java.lang.NullPointerException(); }
         java.util.Map<java.lang.String, java.lang.String> map =
             internalGetTableOptions().getMap();
         return map.containsKey(key) ? map.get(key) : defaultValue;
@@ -3879,9 +3972,10 @@ java.lang.String defaultValue) {
        * <code>map&lt;string, string&gt; table_options = 9;</code>
        */
       @java.lang.Override
+
       public java.lang.String getTableOptionsOrThrow(
           java.lang.String key) {
-        if (key == null) { throw new NullPointerException("map key"); }
+        if (key == null) { throw new java.lang.NullPointerException(); }
         java.util.Map<java.lang.String, java.lang.String> map =
             internalGetTableOptions().getMap();
         if (!map.containsKey(key)) {
@@ -3889,8 +3983,8 @@ java.lang.String defaultValue) {
         }
         return map.get(key);
       }
+
       public Builder clearTableOptions() {
-        bitField0_ = (bitField0_ & ~0x00000100);
         internalGetMutableTableOptions().getMutableMap()
             .clear();
         return this;
@@ -3898,9 +3992,10 @@ java.lang.String defaultValue) {
       /**
        * <code>map&lt;string, string&gt; table_options = 9;</code>
        */
+
       public Builder removeTableOptions(
           java.lang.String key) {
-        if (key == null) { throw new NullPointerException("map key"); }
+        if (key == null) { throw new java.lang.NullPointerException(); }
         internalGetMutableTableOptions().getMutableMap()
             .remove(key);
         return this;
@@ -3910,8 +4005,7 @@ java.lang.String defaultValue) {
        */
       @java.lang.Deprecated
       public java.util.Map<java.lang.String, java.lang.String>
-          getMutableTableOptions() {
-        bitField0_ |= 0x00000100;
+      getMutableTableOptions() {
         return internalGetMutableTableOptions().getMutableMap();
       }
       /**
@@ -3920,21 +4014,20 @@ java.lang.String defaultValue) {
       public Builder putTableOptions(
           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 (key == null) { throw new java.lang.NullPointerException(); }
+        if (value == null) { throw new java.lang.NullPointerException(); }
         internalGetMutableTableOptions().getMutableMap()
             .put(key, value);
-        bitField0_ |= 0x00000100;
         return this;
       }
       /**
        * <code>map&lt;string, string&gt; table_options = 9;</code>
        */
+
       public Builder putAllTableOptions(
           java.util.Map<java.lang.String, java.lang.String> values) {
         internalGetMutableTableOptions().getMutableMap()
             .putAll(values);
-        bitField0_ |= 0x00000100;
         return this;
       }
 
@@ -3946,7 +4039,7 @@ java.lang.String defaultValue) {
        * @return Whether the tableId field is set.
        */
       public boolean hasTableId() {
-        return ((bitField0_ & 0x00000200) != 0);
+        return tableIdBuilder_ != null || tableId_ != null;
       }
       /**
        * <code>.greptime.v1.TableId table_id = 10;</code>
@@ -3968,11 +4061,11 @@ java.lang.String defaultValue) {
             throw new NullPointerException();
           }
           tableId_ = value;
+          onChanged();
         } else {
           tableIdBuilder_.setMessage(value);
         }
-        bitField0_ |= 0x00000200;
-        onChanged();
+
         return this;
       }
       /**
@@ -3982,11 +4075,11 @@ java.lang.String defaultValue) {
           io.greptime.v1.Ddl.TableId.Builder builderForValue) {
         if (tableIdBuilder_ == null) {
           tableId_ = builderForValue.build();
+          onChanged();
         } else {
           tableIdBuilder_.setMessage(builderForValue.build());
         }
-        bitField0_ |= 0x00000200;
-        onChanged();
+
         return this;
       }
       /**
@@ -3994,38 +4087,38 @@ java.lang.String defaultValue) {
        */
       public Builder mergeTableId(io.greptime.v1.Ddl.TableId value) {
         if (tableIdBuilder_ == null) {
-          if (((bitField0_ & 0x00000200) != 0) &&
-            tableId_ != null &&
-            tableId_ != io.greptime.v1.Ddl.TableId.getDefaultInstance()) {
-            getTableIdBuilder().mergeFrom(value);
+          if (tableId_ != null) {
+            tableId_ =
+              io.greptime.v1.Ddl.TableId.newBuilder(tableId_).mergeFrom(value).buildPartial();
           } else {
             tableId_ = value;
           }
+          onChanged();
         } else {
           tableIdBuilder_.mergeFrom(value);
         }
-        bitField0_ |= 0x00000200;
-        onChanged();
+
         return this;
       }
       /**
        * <code>.greptime.v1.TableId table_id = 10;</code>
        */
       public Builder clearTableId() {
-        bitField0_ = (bitField0_ & ~0x00000200);
-        tableId_ = null;
-        if (tableIdBuilder_ != null) {
-          tableIdBuilder_.dispose();
+        if (tableIdBuilder_ == null) {
+          tableId_ = null;
+          onChanged();
+        } else {
+          tableId_ = null;
           tableIdBuilder_ = null;
         }
-        onChanged();
+
         return this;
       }
       /**
        * <code>.greptime.v1.TableId table_id = 10;</code>
        */
       public io.greptime.v1.Ddl.TableId.Builder getTableIdBuilder() {
-        bitField0_ |= 0x00000200;
+        
         onChanged();
         return getTableIdFieldBuilder().getBuilder();
       }
@@ -4059,10 +4152,10 @@ java.lang.String defaultValue) {
 
       private com.google.protobuf.Internal.IntList regionIds_ = emptyIntList();
       private void ensureRegionIdsIsMutable() {
-        if (!((bitField0_ & 0x00000400) != 0)) {
+        if (!((bitField0_ & 0x00000008) != 0)) {
           regionIds_ = mutableCopy(regionIds_);
-          bitField0_ |= 0x00000400;
-        }
+          bitField0_ |= 0x00000008;
+         }
       }
       /**
        * <code>repeated uint32 region_ids = 11;</code>
@@ -4070,7 +4163,7 @@ java.lang.String defaultValue) {
        */
       public java.util.List<java.lang.Integer>
           getRegionIdsList() {
-        return ((bitField0_ & 0x00000400) != 0) ?
+        return ((bitField0_ & 0x00000008) != 0) ?
                  java.util.Collections.unmodifiableList(regionIds_) : regionIds_;
       }
       /**
@@ -4096,7 +4189,6 @@ java.lang.String defaultValue) {
        */
       public Builder setRegionIds(
           int index, int value) {
-        
         ensureRegionIdsIsMutable();
         regionIds_.setInt(index, value);
         onChanged();
@@ -4108,7 +4200,6 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder addRegionIds(int value) {
-        
         ensureRegionIdsIsMutable();
         regionIds_.addInt(value);
         onChanged();
@@ -4133,7 +4224,7 @@ java.lang.String defaultValue) {
        */
       public Builder clearRegionIds() {
         regionIds_ = emptyIntList();
-        bitField0_ = (bitField0_ & ~0x00000400);
+        bitField0_ = (bitField0_ & ~0x00000008);
         onChanged();
         return this;
       }
@@ -4179,9 +4270,11 @@ java.lang.String defaultValue) {
        */
       public Builder setEngine(
           java.lang.String value) {
-        if (value == null) { throw new NullPointerException(); }
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  
         engine_ = value;
-        bitField0_ |= 0x00000800;
         onChanged();
         return this;
       }
@@ -4190,8 +4283,8 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearEngine() {
+        
         engine_ = getDefaultInstance().getEngine();
-        bitField0_ = (bitField0_ & ~0x00000800);
         onChanged();
         return this;
       }
@@ -4202,10 +4295,12 @@ java.lang.String defaultValue) {
        */
       public Builder setEngineBytes(
           com.google.protobuf.ByteString value) {
-        if (value == null) { throw new NullPointerException(); }
-        checkByteStringIsUtf8(value);
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+        
         engine_ = value;
-        bitField0_ |= 0x00000800;
         onChanged();
         return this;
       }
@@ -4242,18 +4337,7 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new CreateTableExpr(input, extensionRegistry);
       }
     };
 
@@ -4390,6 +4474,103 @@ java.lang.String defaultValue) {
     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;
@@ -4447,8 +4628,7 @@ java.lang.String defaultValue) {
     }
 
     public static final int CATALOG_NAME_FIELD_NUMBER = 1;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object catalogName_ = "";
+    private volatile java.lang.Object catalogName_;
     /**
      * <code>string catalog_name = 1;</code>
      * @return The catalogName.
@@ -4486,8 +4666,7 @@ java.lang.String defaultValue) {
     }
 
     public static final int SCHEMA_NAME_FIELD_NUMBER = 2;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object schemaName_ = "";
+    private volatile java.lang.Object schemaName_;
     /**
      * <code>string schema_name = 2;</code>
      * @return The schemaName.
@@ -4525,8 +4704,7 @@ java.lang.String defaultValue) {
     }
 
     public static final int TABLE_NAME_FIELD_NUMBER = 3;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object tableName_ = "";
+    private volatile java.lang.Object tableName_;
     /**
      * <code>string table_name = 3;</code>
      * @return The tableName.
@@ -4670,13 +4848,13 @@ java.lang.String defaultValue) {
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(catalogName_)) {
+      if (!getCatalogNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, catalogName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(schemaName_)) {
+      if (!getSchemaNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 2, schemaName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tableName_)) {
+      if (!getTableNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 3, tableName_);
       }
       if (kindCase_ == 4) {
@@ -4688,7 +4866,7 @@ java.lang.String defaultValue) {
       if (kindCase_ == 6) {
         output.writeMessage(6, (io.greptime.v1.Ddl.RenameTable) kind_);
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -4697,13 +4875,13 @@ java.lang.String defaultValue) {
       if (size != -1) return size;
 
       size = 0;
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(catalogName_)) {
+      if (!getCatalogNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, catalogName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(schemaName_)) {
+      if (!getSchemaNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, schemaName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tableName_)) {
+      if (!getTableNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, tableName_);
       }
       if (kindCase_ == 4) {
@@ -4718,7 +4896,7 @@ java.lang.String defaultValue) {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(6, (io.greptime.v1.Ddl.RenameTable) kind_);
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -4756,7 +4934,7 @@ java.lang.String defaultValue) {
         case 0:
         default:
       }
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -4789,7 +4967,7 @@ java.lang.String defaultValue) {
         case 0:
         default:
       }
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -4906,30 +5084,28 @@ java.lang.String defaultValue) {
 
       // 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;
@@ -4958,42 +5134,35 @@ java.lang.String defaultValue) {
       @java.lang.Override
       public io.greptime.v1.Ddl.AlterExpr buildPartial() {
         io.greptime.v1.Ddl.AlterExpr result = new io.greptime.v1.Ddl.AlterExpr(this);
-        if (bitField0_ != 0) { buildPartial0(result); }
-        buildPartialOneofs(result);
+        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_;
         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();
@@ -5040,17 +5209,14 @@ java.lang.String defaultValue) {
         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()) {
@@ -5070,7 +5236,7 @@ java.lang.String defaultValue) {
             break;
           }
         }
-        this.mergeUnknownFields(other.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -5085,66 +5251,17 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Ddl.AlterExpr parsedMessage = null;
         try {
-          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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Ddl.AlterExpr) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
       private int kindCase_ = 0;
@@ -5162,7 +5279,6 @@ java.lang.String defaultValue) {
         return this;
       }
 
-      private int bitField0_;
 
       private java.lang.Object catalogName_ = "";
       /**
@@ -5205,9 +5321,11 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -5216,8 +5334,8 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearCatalogName() {
+        
         catalogName_ = getDefaultInstance().getCatalogName();
-        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -5228,10 +5346,12 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -5277,9 +5397,11 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -5288,8 +5410,8 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearSchemaName() {
+        
         schemaName_ = getDefaultInstance().getSchemaName();
-        bitField0_ = (bitField0_ & ~0x00000002);
         onChanged();
         return this;
       }
@@ -5300,10 +5422,12 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -5349,9 +5473,11 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -5360,8 +5486,8 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearTableName() {
+        
         tableName_ = getDefaultInstance().getTableName();
-        bitField0_ = (bitField0_ & ~0x00000004);
         onChanged();
         return this;
       }
@@ -5372,10 +5498,12 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -5454,9 +5582,8 @@ java.lang.String defaultValue) {
         } else {
           if (kindCase_ == 4) {
             addColumnsBuilder_.mergeFrom(value);
-          } else {
-            addColumnsBuilder_.setMessage(value);
           }
+          addColumnsBuilder_.setMessage(value);
         }
         kindCase_ = 4;
         return this;
@@ -5518,7 +5645,7 @@ java.lang.String defaultValue) {
           kind_ = null;
         }
         kindCase_ = 4;
-        onChanged();
+        onChanged();;
         return addColumnsBuilder_;
       }
 
@@ -5596,9 +5723,8 @@ java.lang.String defaultValue) {
         } else {
           if (kindCase_ == 5) {
             dropColumnsBuilder_.mergeFrom(value);
-          } else {
-            dropColumnsBuilder_.setMessage(value);
           }
+          dropColumnsBuilder_.setMessage(value);
         }
         kindCase_ = 5;
         return this;
@@ -5660,7 +5786,7 @@ java.lang.String defaultValue) {
           kind_ = null;
         }
         kindCase_ = 5;
-        onChanged();
+        onChanged();;
         return dropColumnsBuilder_;
       }
 
@@ -5738,9 +5864,8 @@ java.lang.String defaultValue) {
         } else {
           if (kindCase_ == 6) {
             renameTableBuilder_.mergeFrom(value);
-          } else {
-            renameTableBuilder_.setMessage(value);
           }
+          renameTableBuilder_.setMessage(value);
         }
         kindCase_ = 6;
         return this;
@@ -5802,7 +5927,7 @@ java.lang.String defaultValue) {
           kind_ = null;
         }
         kindCase_ = 6;
-        onChanged();
+        onChanged();;
         return renameTableBuilder_;
       }
       @java.lang.Override
@@ -5838,18 +5963,7 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new AlterExpr(input, extensionRegistry);
       }
     };
 
@@ -5939,6 +6053,61 @@ java.lang.String defaultValue) {
     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;
@@ -5953,8 +6122,7 @@ java.lang.String defaultValue) {
     }
 
     public static final int CATALOG_NAME_FIELD_NUMBER = 1;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object catalogName_ = "";
+    private volatile java.lang.Object catalogName_;
     /**
      * <code>string catalog_name = 1;</code>
      * @return The catalogName.
@@ -5992,8 +6160,7 @@ java.lang.String defaultValue) {
     }
 
     public static final int SCHEMA_NAME_FIELD_NUMBER = 2;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object schemaName_ = "";
+    private volatile java.lang.Object schemaName_;
     /**
      * <code>string schema_name = 2;</code>
      * @return The schemaName.
@@ -6031,8 +6198,7 @@ java.lang.String defaultValue) {
     }
 
     public static final int TABLE_NAME_FIELD_NUMBER = 3;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object tableName_ = "";
+    private volatile java.lang.Object tableName_;
     /**
      * <code>string table_name = 3;</code>
      * @return The tableName.
@@ -6083,16 +6249,16 @@ java.lang.String defaultValue) {
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(catalogName_)) {
+      if (!getCatalogNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, catalogName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(schemaName_)) {
+      if (!getSchemaNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 2, schemaName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tableName_)) {
+      if (!getTableNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 3, tableName_);
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -6101,16 +6267,16 @@ java.lang.String defaultValue) {
       if (size != -1) return size;
 
       size = 0;
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(catalogName_)) {
+      if (!getCatalogNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, catalogName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(schemaName_)) {
+      if (!getSchemaNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, schemaName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tableName_)) {
+      if (!getTableNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, tableName_);
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -6131,7 +6297,7 @@ java.lang.String defaultValue) {
           .equals(other.getSchemaName())) return false;
       if (!getTableName()
           .equals(other.getTableName())) return false;
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -6148,7 +6314,7 @@ java.lang.String defaultValue) {
       hash = (53 * hash) + getSchemaName().hashCode();
       hash = (37 * hash) + TABLE_NAME_FIELD_NUMBER;
       hash = (53 * hash) + getTableName().hashCode();
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -6265,21 +6431,28 @@ java.lang.String defaultValue) {
 
       // 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;
       }
 
@@ -6306,24 +6479,13 @@ java.lang.String defaultValue) {
       @java.lang.Override
       public io.greptime.v1.Ddl.DropTableExpr buildPartial() {
         io.greptime.v1.Ddl.DropTableExpr result = new io.greptime.v1.Ddl.DropTableExpr(this);
-        if (bitField0_ != 0) { buildPartial0(result); }
+        result.catalogName_ = catalogName_;
+        result.schemaName_ = schemaName_;
+        result.tableName_ = tableName_;
         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();
@@ -6370,20 +6532,17 @@ java.lang.String defaultValue) {
         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.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -6398,48 +6557,19 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Ddl.DropTableExpr parsedMessage = null;
         try {
-          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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Ddl.DropTableExpr) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
-      private int bitField0_;
 
       private java.lang.Object catalogName_ = "";
       /**
@@ -6482,9 +6612,11 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -6493,8 +6625,8 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearCatalogName() {
+        
         catalogName_ = getDefaultInstance().getCatalogName();
-        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -6505,10 +6637,12 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -6554,9 +6688,11 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -6565,8 +6701,8 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearSchemaName() {
+        
         schemaName_ = getDefaultInstance().getSchemaName();
-        bitField0_ = (bitField0_ & ~0x00000002);
         onChanged();
         return this;
       }
@@ -6577,10 +6713,12 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -6626,9 +6764,11 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -6637,8 +6777,8 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearTableName() {
+        
         tableName_ = getDefaultInstance().getTableName();
-        bitField0_ = (bitField0_ & ~0x00000004);
         onChanged();
         return this;
       }
@@ -6649,10 +6789,12 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -6689,18 +6831,7 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new DropTableExpr(input, extensionRegistry);
       }
     };
 
@@ -6761,12 +6892,12 @@ java.lang.String defaultValue) {
         getTableNameBytes();
 
     /**
-     * <code>optional uint32 region_id = 4;</code>
+     * <code>uint32 region_id = 4;</code>
      * @return Whether the regionId field is set.
      */
     boolean hasRegionId();
     /**
-     * <code>optional uint32 region_id = 4;</code>
+     * <code>uint32 region_id = 4;</code>
      * @return The regionId.
      */
     int getRegionId();
@@ -6801,6 +6932,67 @@ java.lang.String defaultValue) {
     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;
@@ -6816,8 +7008,7 @@ java.lang.String defaultValue) {
 
     private int bitField0_;
     public static final int CATALOG_NAME_FIELD_NUMBER = 1;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object catalogName_ = "";
+    private volatile java.lang.Object catalogName_;
     /**
      * <code>string catalog_name = 1;</code>
      * @return The catalogName.
@@ -6855,8 +7046,7 @@ java.lang.String defaultValue) {
     }
 
     public static final int SCHEMA_NAME_FIELD_NUMBER = 2;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object schemaName_ = "";
+    private volatile java.lang.Object schemaName_;
     /**
      * <code>string schema_name = 2;</code>
      * @return The schemaName.
@@ -6894,8 +7084,7 @@ java.lang.String defaultValue) {
     }
 
     public static final int TABLE_NAME_FIELD_NUMBER = 3;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object tableName_ = "";
+    private volatile java.lang.Object tableName_;
     /**
      * <code>string table_name = 3;</code>
      * @return The tableName.
@@ -6933,9 +7122,9 @@ java.lang.String defaultValue) {
     }
 
     public static final int REGION_ID_FIELD_NUMBER = 4;
-    private int regionId_ = 0;
+    private int regionId_;
     /**
-     * <code>optional uint32 region_id = 4;</code>
+     * <code>uint32 region_id = 4;</code>
      * @return Whether the regionId field is set.
      */
     @java.lang.Override
@@ -6943,7 +7132,7 @@ java.lang.String defaultValue) {
       return ((bitField0_ & 0x00000001) != 0);
     }
     /**
-     * <code>optional uint32 region_id = 4;</code>
+     * <code>uint32 region_id = 4;</code>
      * @return The regionId.
      */
     @java.lang.Override
@@ -6965,19 +7154,19 @@ java.lang.String defaultValue) {
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(catalogName_)) {
+      if (!getCatalogNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, catalogName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(schemaName_)) {
+      if (!getSchemaNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 2, schemaName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tableName_)) {
+      if (!getTableNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 3, tableName_);
       }
       if (((bitField0_ & 0x00000001) != 0)) {
         output.writeUInt32(4, regionId_);
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -6986,20 +7175,20 @@ java.lang.String defaultValue) {
       if (size != -1) return size;
 
       size = 0;
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(catalogName_)) {
+      if (!getCatalogNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, catalogName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(schemaName_)) {
+      if (!getSchemaNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, schemaName_);
       }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tableName_)) {
+      if (!getTableNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, tableName_);
       }
       if (((bitField0_ & 0x00000001) != 0)) {
         size += com.google.protobuf.CodedOutputStream
           .computeUInt32Size(4, regionId_);
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -7025,7 +7214,7 @@ java.lang.String defaultValue) {
         if (getRegionId()
             != other.getRegionId()) return false;
       }
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -7046,7 +7235,7 @@ java.lang.String defaultValue) {
         hash = (37 * hash) + REGION_ID_FIELD_NUMBER;
         hash = (53 * hash) + getRegionId();
       }
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -7163,22 +7352,30 @@ java.lang.String defaultValue) {
 
       // 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;
       }
 
@@ -7205,28 +7402,18 @@ java.lang.String defaultValue) {
       @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_;
-        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.catalogName_ = catalogName_;
+        result.schemaName_ = schemaName_;
+        result.tableName_ = tableName_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
           result.regionId_ = regionId_;
           to_bitField0_ |= 0x00000001;
         }
-        result.bitField0_ |= to_bitField0_;
+        result.bitField0_ = to_bitField0_;
+        onBuilt();
+        return result;
       }
 
       @java.lang.Override
@@ -7275,23 +7462,20 @@ java.lang.String defaultValue) {
         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.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -7306,50 +7490,17 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Ddl.FlushTableExpr parsedMessage = null;
         try {
-          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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Ddl.FlushTableExpr) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
       private int bitField0_;
@@ -7395,9 +7546,11 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -7406,8 +7559,8 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearCatalogName() {
+        
         catalogName_ = getDefaultInstance().getCatalogName();
-        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -7418,10 +7571,12 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -7467,9 +7622,11 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -7478,8 +7635,8 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearSchemaName() {
+        
         schemaName_ = getDefaultInstance().getSchemaName();
-        bitField0_ = (bitField0_ & ~0x00000002);
         onChanged();
         return this;
       }
@@ -7490,10 +7647,12 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -7539,9 +7698,11 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -7550,8 +7711,8 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearTableName() {
+        
         tableName_ = getDefaultInstance().getTableName();
-        bitField0_ = (bitField0_ & ~0x00000004);
         onChanged();
         return this;
       }
@@ -7562,25 +7723,27 @@ java.lang.String defaultValue) {
        */
       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;
       }
 
       private int regionId_ ;
       /**
-       * <code>optional uint32 region_id = 4;</code>
+       * <code>uint32 region_id = 4;</code>
        * @return Whether the regionId field is set.
        */
       @java.lang.Override
       public boolean hasRegionId() {
-        return ((bitField0_ & 0x00000008) != 0);
+        return ((bitField0_ & 0x00000001) != 0);
       }
       /**
-       * <code>optional uint32 region_id = 4;</code>
+       * <code>uint32 region_id = 4;</code>
        * @return The regionId.
        */
       @java.lang.Override
@@ -7588,23 +7751,22 @@ java.lang.String defaultValue) {
         return regionId_;
       }
       /**
-       * <code>optional uint32 region_id = 4;</code>
+       * <code>uint32 region_id = 4;</code>
        * @param value The regionId to set.
        * @return This builder for chaining.
        */
       public Builder setRegionId(int value) {
-        
+        bitField0_ |= 0x00000001;
         regionId_ = value;
-        bitField0_ |= 0x00000008;
         onChanged();
         return this;
       }
       /**
-       * <code>optional uint32 region_id = 4;</code>
+       * <code>uint32 region_id = 4;</code>
        * @return This builder for chaining.
        */
       public Builder clearRegionId() {
-        bitField0_ = (bitField0_ & ~0x00000008);
+        bitField0_ = (bitField0_ & ~0x00000001);
         regionId_ = 0;
         onChanged();
         return this;
@@ -7642,18 +7804,7 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new FlushTableExpr(input, extensionRegistry);
       }
     };
 
@@ -7679,7 +7830,7 @@ java.lang.String defaultValue) {
 
     /**
      * <pre>
-     *TODO(hl): maybe rename to schema_name?
+     * TODO(hl): maybe rename to schema_name?
      * </pre>
      *
      * <code>string database_name = 1;</code>
@@ -7688,7 +7839,7 @@ java.lang.String defaultValue) {
     java.lang.String getDatabaseName();
     /**
      * <pre>
-     *TODO(hl): maybe rename to schema_name?
+     * TODO(hl): maybe rename to schema_name?
      * </pre>
      *
      * <code>string database_name = 1;</code>
@@ -7731,6 +7882,54 @@ java.lang.String defaultValue) {
     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;
@@ -7745,11 +7944,10 @@ java.lang.String defaultValue) {
     }
 
     public static final int DATABASE_NAME_FIELD_NUMBER = 1;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object databaseName_ = "";
+    private volatile java.lang.Object databaseName_;
     /**
      * <pre>
-     *TODO(hl): maybe rename to schema_name?
+     * TODO(hl): maybe rename to schema_name?
      * </pre>
      *
      * <code>string database_name = 1;</code>
@@ -7770,7 +7968,7 @@ java.lang.String defaultValue) {
     }
     /**
      * <pre>
-     *TODO(hl): maybe rename to schema_name?
+     * TODO(hl): maybe rename to schema_name?
      * </pre>
      *
      * <code>string database_name = 1;</code>
@@ -7792,7 +7990,7 @@ java.lang.String defaultValue) {
     }
 
     public static final int CREATE_IF_NOT_EXISTS_FIELD_NUMBER = 2;
-    private boolean createIfNotExists_ = false;
+    private boolean createIfNotExists_;
     /**
      * <code>bool create_if_not_exists = 2;</code>
      * @return The createIfNotExists.
@@ -7816,13 +8014,13 @@ java.lang.String defaultValue) {
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(databaseName_)) {
+      if (!getDatabaseNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, databaseName_);
       }
       if (createIfNotExists_ != false) {
         output.writeBool(2, createIfNotExists_);
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -7831,14 +8029,14 @@ java.lang.String defaultValue) {
       if (size != -1) return size;
 
       size = 0;
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(databaseName_)) {
+      if (!getDatabaseNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, databaseName_);
       }
       if (createIfNotExists_ != false) {
         size += com.google.protobuf.CodedOutputStream
           .computeBoolSize(2, createIfNotExists_);
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -7857,7 +8055,7 @@ java.lang.String defaultValue) {
           .equals(other.getDatabaseName())) return false;
       if (getCreateIfNotExists()
           != other.getCreateIfNotExists()) return false;
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -7873,7 +8071,7 @@ java.lang.String defaultValue) {
       hash = (37 * hash) + CREATE_IF_NOT_EXISTS_FIELD_NUMBER;
       hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(
           getCreateIfNotExists());
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -7990,20 +8188,26 @@ java.lang.String defaultValue) {
 
       // 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;
       }
 
@@ -8030,21 +8234,12 @@ java.lang.String defaultValue) {
       @java.lang.Override
       public io.greptime.v1.Ddl.CreateDatabaseExpr buildPartial() {
         io.greptime.v1.Ddl.CreateDatabaseExpr result = new io.greptime.v1.Ddl.CreateDatabaseExpr(this);
-        if (bitField0_ != 0) { buildPartial0(result); }
+        result.databaseName_ = databaseName_;
+        result.createIfNotExists_ = createIfNotExists_;
         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();
@@ -8091,13 +8286,12 @@ java.lang.String defaultValue) {
         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.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -8112,48 +8306,24 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Ddl.CreateDatabaseExpr parsedMessage = null;
         try {
-          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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Ddl.CreateDatabaseExpr) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
-      private int bitField0_;
 
       private java.lang.Object databaseName_ = "";
       /**
        * <pre>
-       *TODO(hl): maybe rename to schema_name?
+       * TODO(hl): maybe rename to schema_name?
        * </pre>
        *
        * <code>string database_name = 1;</code>
@@ -8173,7 +8343,7 @@ java.lang.String defaultValue) {
       }
       /**
        * <pre>
-       *TODO(hl): maybe rename to schema_name?
+       * TODO(hl): maybe rename to schema_name?
        * </pre>
        *
        * <code>string database_name = 1;</code>
@@ -8194,7 +8364,7 @@ java.lang.String defaultValue) {
       }
       /**
        * <pre>
-       *TODO(hl): maybe rename to schema_name?
+       * TODO(hl): maybe rename to schema_name?
        * </pre>
        *
        * <code>string database_name = 1;</code>
@@ -8203,29 +8373,31 @@ java.lang.String defaultValue) {
        */
       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;
       }
       /**
        * <pre>
-       *TODO(hl): maybe rename to schema_name?
+       * TODO(hl): maybe rename to schema_name?
        * </pre>
        *
        * <code>string database_name = 1;</code>
        * @return This builder for chaining.
        */
       public Builder clearDatabaseName() {
+        
         databaseName_ = getDefaultInstance().getDatabaseName();
-        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
       /**
        * <pre>
-       *TODO(hl): maybe rename to schema_name?
+       * TODO(hl): maybe rename to schema_name?
        * </pre>
        *
        * <code>string database_name = 1;</code>
@@ -8234,10 +8406,12 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -8259,7 +8433,6 @@ java.lang.String defaultValue) {
       public Builder setCreateIfNotExists(boolean value) {
         
         createIfNotExists_ = value;
-        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -8268,7 +8441,7 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearCreateIfNotExists() {
-        bitField0_ = (bitField0_ & ~0x00000002);
+        
         createIfNotExists_ = false;
         onChanged();
         return this;
@@ -8306,18 +8479,7 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new CreateDatabaseExpr(input, extensionRegistry);
       }
     };
 
@@ -8393,6 +8555,56 @@ java.lang.String defaultValue) {
     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<io.greptime.v1.Ddl.AddColumn>();
+                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;
@@ -8407,7 +8619,6 @@ java.lang.String defaultValue) {
     }
 
     public static final int ADD_COLUMNS_FIELD_NUMBER = 1;
-    @SuppressWarnings("serial")
     private java.util.List<io.greptime.v1.Ddl.AddColumn> addColumns_;
     /**
      * <code>repeated .greptime.v1.AddColumn add_columns = 1;</code>
@@ -8464,7 +8675,7 @@ java.lang.String defaultValue) {
       for (int i = 0; i < addColumns_.size(); i++) {
         output.writeMessage(1, addColumns_.get(i));
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -8477,7 +8688,7 @@ java.lang.String defaultValue) {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(1, addColumns_.get(i));
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -8494,7 +8705,7 @@ java.lang.String defaultValue) {
 
       if (!getAddColumnsList()
           .equals(other.getAddColumnsList())) return false;
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -8509,7 +8720,7 @@ java.lang.String defaultValue) {
         hash = (37 * hash) + ADD_COLUMNS_FIELD_NUMBER;
         hash = (53 * hash) + getAddColumnsList().hashCode();
       }
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -8626,25 +8837,29 @@ java.lang.String defaultValue) {
 
       // 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;
       }
 
@@ -8671,13 +8886,7 @@ java.lang.String defaultValue) {
       @java.lang.Override
       public io.greptime.v1.Ddl.AddColumns buildPartial() {
         io.greptime.v1.Ddl.AddColumns result = new io.greptime.v1.Ddl.AddColumns(this);
-        buildPartialRepeatedFields(result);
-        if (bitField0_ != 0) { buildPartial0(result); }
-        onBuilt();
-        return result;
-      }
-
-      private void buildPartialRepeatedFields(io.greptime.v1.Ddl.AddColumns result) {
+        int from_bitField0_ = bitField0_;
         if (addColumnsBuilder_ == null) {
           if (((bitField0_ & 0x00000001) != 0)) {
             addColumns_ = java.util.Collections.unmodifiableList(addColumns_);
@@ -8687,10 +8896,8 @@ java.lang.String defaultValue) {
         } else {
           result.addColumns_ = addColumnsBuilder_.build();
         }
-      }
-
-      private void buildPartial0(io.greptime.v1.Ddl.AddColumns result) {
-        int from_bitField0_ = bitField0_;
+        onBuilt();
+        return result;
       }
 
       @java.lang.Override
@@ -8763,7 +8970,7 @@ java.lang.String defaultValue) {
             }
           }
         }
-        this.mergeUnknownFields(other.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -8778,43 +8985,17 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Ddl.AddColumns parsedMessage = null;
         try {
-          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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Ddl.AddColumns) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
       private int bitField0_;
@@ -9091,18 +9272,7 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new AddColumns(input, extensionRegistry);
       }
     };
 
@@ -9178,6 +9348,56 @@ java.lang.String defaultValue) {
     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<io.greptime.v1.Ddl.DropColumn>();
+                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;
@@ -9192,7 +9412,6 @@ java.lang.String defaultValue) {
     }
 
     public static final int DROP_COLUMNS_FIELD_NUMBER = 1;
-    @SuppressWarnings("serial")
     private java.util.List<io.greptime.v1.Ddl.DropColumn> dropColumns_;
     /**
      * <code>repeated .greptime.v1.DropColumn drop_columns = 1;</code>
@@ -9249,7 +9468,7 @@ java.lang.String defaultValue) {
       for (int i = 0; i < dropColumns_.size(); i++) {
         output.writeMessage(1, dropColumns_.get(i));
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -9262,7 +9481,7 @@ java.lang.String defaultValue) {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(1, dropColumns_.get(i));
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -9279,7 +9498,7 @@ java.lang.String defaultValue) {
 
       if (!getDropColumnsList()
           .equals(other.getDropColumnsList())) return false;
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -9294,7 +9513,7 @@ java.lang.String defaultValue) {
         hash = (37 * hash) + DROP_COLUMNS_FIELD_NUMBER;
         hash = (53 * hash) + getDropColumnsList().hashCode();
       }
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -9411,25 +9630,29 @@ java.lang.String defaultValue) {
 
       // 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;
       }
 
@@ -9456,13 +9679,7 @@ java.lang.String defaultValue) {
       @java.lang.Override
       public io.greptime.v1.Ddl.DropColumns buildPartial() {
         io.greptime.v1.Ddl.DropColumns result = new io.greptime.v1.Ddl.DropColumns(this);
-        buildPartialRepeatedFields(result);
-        if (bitField0_ != 0) { buildPartial0(result); }
-        onBuilt();
-        return result;
-      }
-
-      private void buildPartialRepeatedFields(io.greptime.v1.Ddl.DropColumns result) {
+        int from_bitField0_ = bitField0_;
         if (dropColumnsBuilder_ == null) {
           if (((bitField0_ & 0x00000001) != 0)) {
             dropColumns_ = java.util.Collections.unmodifiableList(dropColumns_);
@@ -9472,10 +9689,8 @@ java.lang.String defaultValue) {
         } else {
           result.dropColumns_ = dropColumnsBuilder_.build();
         }
-      }
-
-      private void buildPartial0(io.greptime.v1.Ddl.DropColumns result) {
-        int from_bitField0_ = bitField0_;
+        onBuilt();
+        return result;
       }
 
       @java.lang.Override
@@ -9548,7 +9763,7 @@ java.lang.String defaultValue) {
             }
           }
         }
-        this.mergeUnknownFields(other.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -9563,43 +9778,17 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Ddl.DropColumns parsedMessage = null;
         try {
-          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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Ddl.DropColumns) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
       private int bitField0_;
@@ -9876,18 +10065,7 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new DropColumns(input, extensionRegistry);
       }
     };
 
@@ -9951,6 +10129,49 @@ java.lang.String defaultValue) {
     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;
@@ -9965,8 +10186,7 @@ java.lang.String defaultValue) {
     }
 
     public static final int NEW_TABLE_NAME_FIELD_NUMBER = 1;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object newTableName_ = "";
+    private volatile java.lang.Object newTableName_;
     /**
      * <code>string new_table_name = 1;</code>
      * @return The newTableName.
@@ -10017,10 +10237,10 @@ java.lang.String defaultValue) {
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(newTableName_)) {
+      if (!getNewTableNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, newTableName_);
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -10029,10 +10249,10 @@ java.lang.String defaultValue) {
       if (size != -1) return size;
 
       size = 0;
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(newTableName_)) {
+      if (!getNewTableNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, newTableName_);
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -10049,7 +10269,7 @@ java.lang.String defaultValue) {
 
       if (!getNewTableName()
           .equals(other.getNewTableName())) return false;
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -10062,7 +10282,7 @@ java.lang.String defaultValue) {
       hash = (19 * hash) + getDescriptor().hashCode();
       hash = (37 * hash) + NEW_TABLE_NAME_FIELD_NUMBER;
       hash = (53 * hash) + getNewTableName().hashCode();
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -10179,19 +10399,24 @@ java.lang.String defaultValue) {
 
       // 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;
       }
 
@@ -10218,18 +10443,11 @@ java.lang.String defaultValue) {
       @java.lang.Override
       public io.greptime.v1.Ddl.RenameTable buildPartial() {
         io.greptime.v1.Ddl.RenameTable result = new io.greptime.v1.Ddl.RenameTable(this);
-        if (bitField0_ != 0) { buildPartial0(result); }
+        result.newTableName_ = newTableName_;
         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();
@@ -10276,10 +10494,9 @@ java.lang.String defaultValue) {
         if (other == io.greptime.v1.Ddl.RenameTable.getDefaultInstance()) return this;
         if (!other.getNewTableName().isEmpty()) {
           newTableName_ = other.newTableName_;
-          bitField0_ |= 0x00000001;
           onChanged();
         }
-        this.mergeUnknownFields(other.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -10294,38 +10511,19 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Ddl.RenameTable parsedMessage = null;
         try {
-          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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Ddl.RenameTable) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
-      private int bitField0_;
 
       private java.lang.Object newTableName_ = "";
       /**
@@ -10368,9 +10566,11 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -10379,8 +10579,8 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearNewTableName() {
+        
         newTableName_ = getDefaultInstance().getNewTableName();
-        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -10391,10 +10591,12 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -10431,18 +10633,7 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new RenameTable(input, extensionRegistry);
       }
     };
 
@@ -10486,6 +10677,21 @@ java.lang.String defaultValue) {
      * @return The isKey.
      */
     boolean getIsKey();
+
+    /**
+     * <code>.greptime.v1.AddColumn.Location location = 3;</code>
+     * @return Whether the location field is set.
+     */
+    boolean hasLocation();
+    /**
+     * <code>.greptime.v1.AddColumn.Location location = 3;</code>
+     * @return The location.
+     */
+    io.greptime.v1.Ddl.AddColumn.Location getLocation();
+    /**
+     * <code>.greptime.v1.AddColumn.Location location = 3;</code>
+     */
+    io.greptime.v1.Ddl.AddColumn.LocationOrBuilder getLocationOrBuilder();
   }
   /**
    * Protobuf type {@code greptime.v1.AddColumn}
@@ -10514,6 +10720,74 @@ java.lang.String defaultValue) {
     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;
+            }
+            case 26: {
+              io.greptime.v1.Ddl.AddColumn.Location.Builder subBuilder = null;
+              if (location_ != null) {
+                subBuilder = location_.toBuilder();
+              }
+              location_ = input.readMessage(io.greptime.v1.Ddl.AddColumn.Location.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(location_);
+                location_ = subBuilder.buildPartial();
+              }
+
+              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;
@@ -10527,6 +10801,789 @@ java.lang.String defaultValue) {
               io.greptime.v1.Ddl.AddColumn.class, io.greptime.v1.Ddl.AddColumn.Builder.class);
     }
 
+    public interface LocationOrBuilder extends
+        // @@protoc_insertion_point(interface_extends:greptime.v1.AddColumn.Location)
+        com.google.protobuf.MessageOrBuilder {
+
+      /**
+       * <code>.greptime.v1.AddColumn.Location.LocationType location_type = 1;</code>
+       * @return The enum numeric value on the wire for locationType.
+       */
+      int getLocationTypeValue();
+      /**
+       * <code>.greptime.v1.AddColumn.Location.LocationType location_type = 1;</code>
+       * @return The locationType.
+       */
+      io.greptime.v1.Ddl.AddColumn.Location.LocationType getLocationType();
+
+      /**
+       * <code>string after_cloumn_name = 2;</code>
+       * @return The afterCloumnName.
+       */
+      java.lang.String getAfterCloumnName();
+      /**
+       * <code>string after_cloumn_name = 2;</code>
+       * @return The bytes for afterCloumnName.
+       */
+      com.google.protobuf.ByteString
+          getAfterCloumnNameBytes();
+    }
+    /**
+     * Protobuf type {@code greptime.v1.AddColumn.Location}
+     */
+    public static final class Location extends
+        com.google.protobuf.GeneratedMessageV3 implements
+        // @@protoc_insertion_point(message_implements:greptime.v1.AddColumn.Location)
+        LocationOrBuilder {
+    private static final long serialVersionUID = 0L;
+      // Use Location.newBuilder() to construct.
+      private Location(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+        super(builder);
+      }
+      private Location() {
+        locationType_ = 0;
+        afterCloumnName_ = "";
+      }
+
+      @java.lang.Override
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(
+          UnusedPrivateParameter unused) {
+        return new Location();
+      }
+
+      @java.lang.Override
+      public final com.google.protobuf.UnknownFieldSet
+      getUnknownFields() {
+        return this.unknownFields;
+      }
+      private Location(
+          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: {
+                int rawValue = input.readEnum();
+
+                locationType_ = rawValue;
+                break;
+              }
+              case 18: {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                afterCloumnName_ = 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_AddColumn_Location_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return io.greptime.v1.Ddl.internal_static_greptime_v1_AddColumn_Location_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                io.greptime.v1.Ddl.AddColumn.Location.class, io.greptime.v1.Ddl.AddColumn.Location.Builder.class);
+      }
+
+      /**
+       * Protobuf enum {@code greptime.v1.AddColumn.Location.LocationType}
+       */
+      public enum LocationType
+          implements com.google.protobuf.ProtocolMessageEnum {
+        /**
+         * <code>FIRST = 0;</code>
+         */
+        FIRST(0),
+        /**
+         * <code>AFTER = 1;</code>
+         */
+        AFTER(1),
+        UNRECOGNIZED(-1),
+        ;
+
+        /**
+         * <code>FIRST = 0;</code>
+         */
+        public static final int FIRST_VALUE = 0;
+        /**
+         * <code>AFTER = 1;</code>
+         */
+        public static final int AFTER_VALUE = 1;
+
+
+        public final int getNumber() {
+          if (this == UNRECOGNIZED) {
+            throw new java.lang.IllegalArgumentException(
+                "Can't get the number of an unknown enum value.");
+          }
+          return value;
+        }
+
+        /**
+         * @param value The numeric wire value of the corresponding enum entry.
+         * @return The enum associated with the given numeric wire value.
+         * @deprecated Use {@link #forNumber(int)} instead.
+         */
+        @java.lang.Deprecated
+        public static LocationType valueOf(int value) {
+          return forNumber(value);
+        }
+
+        /**
+         * @param value The numeric wire value of the corresponding enum entry.
+         * @return The enum associated with the given numeric wire value.
+         */
+        public static LocationType forNumber(int value) {
+          switch (value) {
+            case 0: return FIRST;
+            case 1: return AFTER;
+            default: return null;
+          }
+        }
+
+        public static com.google.protobuf.Internal.EnumLiteMap<LocationType>
+            internalGetValueMap() {
+          return internalValueMap;
+        }
+        private static final com.google.protobuf.Internal.EnumLiteMap<
+            LocationType> internalValueMap =
+              new com.google.protobuf.Internal.EnumLiteMap<LocationType>() {
+                public LocationType findValueByNumber(int number) {
+                  return LocationType.forNumber(number);
+                }
+              };
+
+        public final com.google.protobuf.Descriptors.EnumValueDescriptor
+            getValueDescriptor() {
+          if (this == UNRECOGNIZED) {
+            throw new java.lang.IllegalStateException(
+                "Can't get the descriptor of an unrecognized enum value.");
+          }
+          return getDescriptor().getValues().get(ordinal());
+        }
+        public final com.google.protobuf.Descriptors.EnumDescriptor
+            getDescriptorForType() {
+          return getDescriptor();
+        }
+        public static final com.google.protobuf.Descriptors.EnumDescriptor
+            getDescriptor() {
+          return io.greptime.v1.Ddl.AddColumn.Location.getDescriptor().getEnumTypes().get(0);
+        }
+
+        private static final LocationType[] VALUES = values();
+
+        public static LocationType valueOf(
+            com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+          if (desc.getType() != getDescriptor()) {
+            throw new java.lang.IllegalArgumentException(
+              "EnumValueDescriptor is not for this type.");
+          }
+          if (desc.getIndex() == -1) {
+            return UNRECOGNIZED;
+          }
+          return VALUES[desc.getIndex()];
+        }
+
+        private final int value;
+
+        private LocationType(int value) {
+          this.value = value;
+        }
+
+        // @@protoc_insertion_point(enum_scope:greptime.v1.AddColumn.Location.LocationType)
+      }
+
+      public static final int LOCATION_TYPE_FIELD_NUMBER = 1;
+      private int locationType_;
+      /**
+       * <code>.greptime.v1.AddColumn.Location.LocationType location_type = 1;</code>
+       * @return The enum numeric value on the wire for locationType.
+       */
+      @java.lang.Override public int getLocationTypeValue() {
+        return locationType_;
+      }
+      /**
+       * <code>.greptime.v1.AddColumn.Location.LocationType location_type = 1;</code>
+       * @return The locationType.
+       */
+      @java.lang.Override public io.greptime.v1.Ddl.AddColumn.Location.LocationType getLocationType() {
+        @SuppressWarnings("deprecation")
+        io.greptime.v1.Ddl.AddColumn.Location.LocationType result = io.greptime.v1.Ddl.AddColumn.Location.LocationType.valueOf(locationType_);
+        return result == null ? io.greptime.v1.Ddl.AddColumn.Location.LocationType.UNRECOGNIZED : result;
+      }
+
+      public static final int AFTER_CLOUMN_NAME_FIELD_NUMBER = 2;
+      private volatile java.lang.Object afterCloumnName_;
+      /**
+       * <code>string after_cloumn_name = 2;</code>
+       * @return The afterCloumnName.
+       */
+      @java.lang.Override
+      public java.lang.String getAfterCloumnName() {
+        java.lang.Object ref = afterCloumnName_;
+        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();
+          afterCloumnName_ = s;
+          return s;
+        }
+      }
+      /**
+       * <code>string after_cloumn_name = 2;</code>
+       * @return The bytes for afterCloumnName.
+       */
+      @java.lang.Override
+      public com.google.protobuf.ByteString
+          getAfterCloumnNameBytes() {
+        java.lang.Object ref = afterCloumnName_;
+        if (ref instanceof java.lang.String) {
+          com.google.protobuf.ByteString b = 
+              com.google.protobuf.ByteString.copyFromUtf8(
+                  (java.lang.String) ref);
+          afterCloumnName_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+
+      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 (locationType_ != io.greptime.v1.Ddl.AddColumn.Location.LocationType.FIRST.getNumber()) {
+          output.writeEnum(1, locationType_);
+        }
+        if (!getAfterCloumnNameBytes().isEmpty()) {
+          com.google.protobuf.GeneratedMessageV3.writeString(output, 2, afterCloumnName_);
+        }
+        unknownFields.writeTo(output);
+      }
+
+      @java.lang.Override
+      public int getSerializedSize() {
+        int size = memoizedSize;
+        if (size != -1) return size;
+
+        size = 0;
+        if (locationType_ != io.greptime.v1.Ddl.AddColumn.Location.LocationType.FIRST.getNumber()) {
+          size += com.google.protobuf.CodedOutputStream
+            .computeEnumSize(1, locationType_);
+        }
+        if (!getAfterCloumnNameBytes().isEmpty()) {
+          size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, afterCloumnName_);
+        }
+        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.Ddl.AddColumn.Location)) {
+          return super.equals(obj);
+        }
+        io.greptime.v1.Ddl.AddColumn.Location other = (io.greptime.v1.Ddl.AddColumn.Location) obj;
+
+        if (locationType_ != other.locationType_) return false;
+        if (!getAfterCloumnName()
+            .equals(other.getAfterCloumnName())) 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();
+        hash = (37 * hash) + LOCATION_TYPE_FIELD_NUMBER;
+        hash = (53 * hash) + locationType_;
+        hash = (37 * hash) + AFTER_CLOUMN_NAME_FIELD_NUMBER;
+        hash = (53 * hash) + getAfterCloumnName().hashCode();
+        hash = (29 * hash) + unknownFields.hashCode();
+        memoizedHashCode = hash;
+        return hash;
+      }
+
+      public static io.greptime.v1.Ddl.AddColumn.Location parseFrom(
+          java.nio.ByteBuffer data)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+      public static io.greptime.v1.Ddl.AddColumn.Location 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.Ddl.AddColumn.Location parseFrom(
+          com.google.protobuf.ByteString data)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+      public static io.greptime.v1.Ddl.AddColumn.Location 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.Ddl.AddColumn.Location parseFrom(byte[] data)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+      public static io.greptime.v1.Ddl.AddColumn.Location parseFrom(
+          byte[] data,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+      public static io.greptime.v1.Ddl.AddColumn.Location parseFrom(java.io.InputStream input)
+          throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3
+            .parseWithIOException(PARSER, input);
+      }
+      public static io.greptime.v1.Ddl.AddColumn.Location 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.Ddl.AddColumn.Location parseDelimitedFrom(java.io.InputStream input)
+          throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3
+            .parseDelimitedWithIOException(PARSER, input);
+      }
+      public static io.greptime.v1.Ddl.AddColumn.Location 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.Ddl.AddColumn.Location parseFrom(
+          com.google.protobuf.CodedInputStream input)
+          throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3
+            .parseWithIOException(PARSER, input);
+      }
+      public static io.greptime.v1.Ddl.AddColumn.Location 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.Ddl.AddColumn.Location 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.AddColumn.Location}
+       */
+      public static final class Builder extends
+          com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+          // @@protoc_insertion_point(builder_implements:greptime.v1.AddColumn.Location)
+          io.greptime.v1.Ddl.AddColumn.LocationOrBuilder {
+        public static final com.google.protobuf.Descriptors.Descriptor
+            getDescriptor() {
+          return io.greptime.v1.Ddl.internal_static_greptime_v1_AddColumn_Location_descriptor;
+        }
+
+        @java.lang.Override
+        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+            internalGetFieldAccessorTable() {
+          return io.greptime.v1.Ddl.internal_static_greptime_v1_AddColumn_Location_fieldAccessorTable
+              .ensureFieldAccessorsInitialized(
+                  io.greptime.v1.Ddl.AddColumn.Location.class, io.greptime.v1.Ddl.AddColumn.Location.Builder.class);
+        }
+
+        // Construct using io.greptime.v1.Ddl.AddColumn.Location.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();
+          locationType_ = 0;
+
+          afterCloumnName_ = "";
+
+          return this;
+        }
+
+        @java.lang.Override
+        public com.google.protobuf.Descriptors.Descriptor
+            getDescriptorForType() {
+          return io.greptime.v1.Ddl.internal_static_greptime_v1_AddColumn_Location_descriptor;
+        }
+
+        @java.lang.Override
+        public io.greptime.v1.Ddl.AddColumn.Location getDefaultInstanceForType() {
+          return io.greptime.v1.Ddl.AddColumn.Location.getDefaultInstance();
+        }
+
+        @java.lang.Override
+        public io.greptime.v1.Ddl.AddColumn.Location build() {
+          io.greptime.v1.Ddl.AddColumn.Location result = buildPartial();
+          if (!result.isInitialized()) {
+            throw newUninitializedMessageException(result);
+          }
+          return result;
+        }
+
+        @java.lang.Override
+        public io.greptime.v1.Ddl.AddColumn.Location buildPartial() {
+          io.greptime.v1.Ddl.AddColumn.Location result = new io.greptime.v1.Ddl.AddColumn.Location(this);
+          result.locationType_ = locationType_;
+          result.afterCloumnName_ = afterCloumnName_;
+          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.Ddl.AddColumn.Location) {
+            return mergeFrom((io.greptime.v1.Ddl.AddColumn.Location)other);
+          } else {
+            super.mergeFrom(other);
+            return this;
+          }
+        }
+
+        public Builder mergeFrom(io.greptime.v1.Ddl.AddColumn.Location other) {
+          if (other == io.greptime.v1.Ddl.AddColumn.Location.getDefaultInstance()) return this;
+          if (other.locationType_ != 0) {
+            setLocationTypeValue(other.getLocationTypeValue());
+          }
+          if (!other.getAfterCloumnName().isEmpty()) {
+            afterCloumnName_ = other.afterCloumnName_;
+            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.Ddl.AddColumn.Location parsedMessage = null;
+          try {
+            parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            parsedMessage = (io.greptime.v1.Ddl.AddColumn.Location) e.getUnfinishedMessage();
+            throw e.unwrapIOException();
+          } finally {
+            if (parsedMessage != null) {
+              mergeFrom(parsedMessage);
+            }
+          }
+          return this;
+        }
+
+        private int locationType_ = 0;
+        /**
+         * <code>.greptime.v1.AddColumn.Location.LocationType location_type = 1;</code>
+         * @return The enum numeric value on the wire for locationType.
+         */
+        @java.lang.Override public int getLocationTypeValue() {
+          return locationType_;
+        }
+        /**
+         * <code>.greptime.v1.AddColumn.Location.LocationType location_type = 1;</code>
+         * @param value The enum numeric value on the wire for locationType to set.
+         * @return This builder for chaining.
+         */
+        public Builder setLocationTypeValue(int value) {
+          
+          locationType_ = value;
+          onChanged();
+          return this;
+        }
+        /**
+         * <code>.greptime.v1.AddColumn.Location.LocationType location_type = 1;</code>
+         * @return The locationType.
+         */
+        @java.lang.Override
+        public io.greptime.v1.Ddl.AddColumn.Location.LocationType getLocationType() {
+          @SuppressWarnings("deprecation")
+          io.greptime.v1.Ddl.AddColumn.Location.LocationType result = io.greptime.v1.Ddl.AddColumn.Location.LocationType.valueOf(locationType_);
+          return result == null ? io.greptime.v1.Ddl.AddColumn.Location.LocationType.UNRECOGNIZED : result;
+        }
+        /**
+         * <code>.greptime.v1.AddColumn.Location.LocationType location_type = 1;</code>
+         * @param value The locationType to set.
+         * @return This builder for chaining.
+         */
+        public Builder setLocationType(io.greptime.v1.Ddl.AddColumn.Location.LocationType value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          
+          locationType_ = value.getNumber();
+          onChanged();
+          return this;
+        }
+        /**
+         * <code>.greptime.v1.AddColumn.Location.LocationType location_type = 1;</code>
+         * @return This builder for chaining.
+         */
+        public Builder clearLocationType() {
+          
+          locationType_ = 0;
+          onChanged();
+          return this;
+        }
+
+        private java.lang.Object afterCloumnName_ = "";
+        /**
+         * <code>string after_cloumn_name = 2;</code>
+         * @return The afterCloumnName.
+         */
+        public java.lang.String getAfterCloumnName() {
+          java.lang.Object ref = afterCloumnName_;
+          if (!(ref instanceof java.lang.String)) {
+            com.google.protobuf.ByteString bs =
+                (com.google.protobuf.ByteString) ref;
+            java.lang.String s = bs.toStringUtf8();
+            afterCloumnName_ = s;
+            return s;
+          } else {
+            return (java.lang.String) ref;
+          }
+        }
+        /**
+         * <code>string after_cloumn_name = 2;</code>
+         * @return The bytes for afterCloumnName.
+         */
+        public com.google.protobuf.ByteString
+            getAfterCloumnNameBytes() {
+          java.lang.Object ref = afterCloumnName_;
+          if (ref instanceof String) {
+            com.google.protobuf.ByteString b = 
+                com.google.protobuf.ByteString.copyFromUtf8(
+                    (java.lang.String) ref);
+            afterCloumnName_ = b;
+            return b;
+          } else {
+            return (com.google.protobuf.ByteString) ref;
+          }
+        }
+        /**
+         * <code>string after_cloumn_name = 2;</code>
+         * @param value The afterCloumnName to set.
+         * @return This builder for chaining.
+         */
+        public Builder setAfterCloumnName(
+            java.lang.String value) {
+          if (value == null) {
+    throw new NullPointerException();
+  }
+  
+          afterCloumnName_ = value;
+          onChanged();
+          return this;
+        }
+        /**
+         * <code>string after_cloumn_name = 2;</code>
+         * @return This builder for chaining.
+         */
+        public Builder clearAfterCloumnName() {
+          
+          afterCloumnName_ = getDefaultInstance().getAfterCloumnName();
+          onChanged();
+          return this;
+        }
+        /**
+         * <code>string after_cloumn_name = 2;</code>
+         * @param value The bytes for afterCloumnName to set.
+         * @return This builder for chaining.
+         */
+        public Builder setAfterCloumnNameBytes(
+            com.google.protobuf.ByteString value) {
+          if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+          
+          afterCloumnName_ = 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.AddColumn.Location)
+      }
+
+      // @@protoc_insertion_point(class_scope:greptime.v1.AddColumn.Location)
+      private static final io.greptime.v1.Ddl.AddColumn.Location DEFAULT_INSTANCE;
+      static {
+        DEFAULT_INSTANCE = new io.greptime.v1.Ddl.AddColumn.Location();
+      }
+
+      public static io.greptime.v1.Ddl.AddColumn.Location getDefaultInstance() {
+        return DEFAULT_INSTANCE;
+      }
+
+      private static final com.google.protobuf.Parser<Location>
+          PARSER = new com.google.protobuf.AbstractParser<Location>() {
+        @java.lang.Override
+        public Location parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new Location(input, extensionRegistry);
+        }
+      };
+
+      public static com.google.protobuf.Parser<Location> parser() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Parser<Location> getParserForType() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public io.greptime.v1.Ddl.AddColumn.Location getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
+      }
+
+    }
+
     public static final int COLUMN_DEF_FIELD_NUMBER = 1;
     private io.greptime.v1.Columns.ColumnDef columnDef_;
     /**
@@ -10550,11 +11607,11 @@ java.lang.String defaultValue) {
      */
     @java.lang.Override
     public io.greptime.v1.Columns.ColumnDefOrBuilder getColumnDefOrBuilder() {
-      return columnDef_ == null ? io.greptime.v1.Columns.ColumnDef.getDefaultInstance() : columnDef_;
+      return getColumnDef();
     }
 
     public static final int IS_KEY_FIELD_NUMBER = 2;
-    private boolean isKey_ = false;
+    private boolean isKey_;
     /**
      * <code>bool is_key = 2;</code>
      * @return The isKey.
@@ -10564,6 +11621,32 @@ java.lang.String defaultValue) {
       return isKey_;
     }
 
+    public static final int LOCATION_FIELD_NUMBER = 3;
+    private io.greptime.v1.Ddl.AddColumn.Location location_;
+    /**
+     * <code>.greptime.v1.AddColumn.Location location = 3;</code>
+     * @return Whether the location field is set.
+     */
+    @java.lang.Override
+    public boolean hasLocation() {
+      return location_ != null;
+    }
+    /**
+     * <code>.greptime.v1.AddColumn.Location location = 3;</code>
+     * @return The location.
+     */
+    @java.lang.Override
+    public io.greptime.v1.Ddl.AddColumn.Location getLocation() {
+      return location_ == null ? io.greptime.v1.Ddl.AddColumn.Location.getDefaultInstance() : location_;
+    }
+    /**
+     * <code>.greptime.v1.AddColumn.Location location = 3;</code>
+     */
+    @java.lang.Override
+    public io.greptime.v1.Ddl.AddColumn.LocationOrBuilder getLocationOrBuilder() {
+      return getLocation();
+    }
+
     private byte memoizedIsInitialized = -1;
     @java.lang.Override
     public final boolean isInitialized() {
@@ -10584,7 +11667,10 @@ java.lang.String defaultValue) {
       if (isKey_ != false) {
         output.writeBool(2, isKey_);
       }
-      getUnknownFields().writeTo(output);
+      if (location_ != null) {
+        output.writeMessage(3, getLocation());
+      }
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -10601,7 +11687,11 @@ java.lang.String defaultValue) {
         size += com.google.protobuf.CodedOutputStream
           .computeBoolSize(2, isKey_);
       }
-      size += getUnknownFields().getSerializedSize();
+      if (location_ != null) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(3, getLocation());
+      }
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -10623,7 +11713,12 @@ java.lang.String defaultValue) {
       }
       if (getIsKey()
           != other.getIsKey()) return false;
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (hasLocation() != other.hasLocation()) return false;
+      if (hasLocation()) {
+        if (!getLocation()
+            .equals(other.getLocation())) return false;
+      }
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -10641,7 +11736,11 @@ java.lang.String defaultValue) {
       hash = (37 * hash) + IS_KEY_FIELD_NUMBER;
       hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(
           getIsKey());
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      if (hasLocation()) {
+        hash = (37 * hash) + LOCATION_FIELD_NUMBER;
+        hash = (53 * hash) + getLocation().hashCode();
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -10758,24 +11857,36 @@ java.lang.String defaultValue) {
 
       // 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();
-        bitField0_ = 0;
-        columnDef_ = null;
-        if (columnDefBuilder_ != null) {
-          columnDefBuilder_.dispose();
+        if (columnDefBuilder_ == null) {
+          columnDef_ = null;
+        } else {
+          columnDef_ = null;
           columnDefBuilder_ = null;
         }
         isKey_ = false;
+
+        if (locationBuilder_ == null) {
+          location_ = null;
+        } else {
+          location_ = null;
+          locationBuilder_ = null;
+        }
         return this;
       }
 
@@ -10802,23 +11913,21 @@ java.lang.String defaultValue) {
       @java.lang.Override
       public io.greptime.v1.Ddl.AddColumn buildPartial() {
         io.greptime.v1.Ddl.AddColumn result = new io.greptime.v1.Ddl.AddColumn(this);
-        if (bitField0_ != 0) { buildPartial0(result); }
+        if (columnDefBuilder_ == null) {
+          result.columnDef_ = columnDef_;
+        } else {
+          result.columnDef_ = columnDefBuilder_.build();
+        }
+        result.isKey_ = isKey_;
+        if (locationBuilder_ == null) {
+          result.location_ = location_;
+        } else {
+          result.location_ = locationBuilder_.build();
+        }
         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();
@@ -10869,7 +11978,10 @@ java.lang.String defaultValue) {
         if (other.getIsKey() != false) {
           setIsKey(other.getIsKey());
         }
-        this.mergeUnknownFields(other.getUnknownFields());
+        if (other.hasLocation()) {
+          mergeLocation(other.getLocation());
+        }
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -10884,45 +11996,19 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Ddl.AddColumn parsedMessage = null;
         try {
-          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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Ddl.AddColumn) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
-      private int bitField0_;
 
       private io.greptime.v1.Columns.ColumnDef columnDef_;
       private com.google.protobuf.SingleFieldBuilderV3<
@@ -10932,7 +12018,7 @@ java.lang.String defaultValue) {
        * @return Whether the columnDef field is set.
        */
       public boolean hasColumnDef() {
-        return ((bitField0_ & 0x00000001) != 0);
+        return columnDefBuilder_ != null || columnDef_ != null;
       }
       /**
        * <code>.greptime.v1.ColumnDef column_def = 1;</code>
@@ -10954,11 +12040,11 @@ java.lang.String defaultValue) {
             throw new NullPointerException();
           }
           columnDef_ = value;
+          onChanged();
         } else {
           columnDefBuilder_.setMessage(value);
         }
-        bitField0_ |= 0x00000001;
-        onChanged();
+
         return this;
       }
       /**
@@ -10968,11 +12054,11 @@ java.lang.String defaultValue) {
           io.greptime.v1.Columns.ColumnDef.Builder builderForValue) {
         if (columnDefBuilder_ == null) {
           columnDef_ = builderForValue.build();
+          onChanged();
         } else {
           columnDefBuilder_.setMessage(builderForValue.build());
         }
-        bitField0_ |= 0x00000001;
-        onChanged();
+
         return this;
       }
       /**
@@ -10980,38 +12066,38 @@ java.lang.String defaultValue) {
        */
       public Builder mergeColumnDef(io.greptime.v1.Columns.ColumnDef value) {
         if (columnDefBuilder_ == null) {
-          if (((bitField0_ & 0x00000001) != 0) &&
-            columnDef_ != null &&
-            columnDef_ != io.greptime.v1.Columns.ColumnDef.getDefaultInstance()) {
-            getColumnDefBuilder().mergeFrom(value);
+          if (columnDef_ != null) {
+            columnDef_ =
+              io.greptime.v1.Columns.ColumnDef.newBuilder(columnDef_).mergeFrom(value).buildPartial();
           } else {
             columnDef_ = value;
           }
+          onChanged();
         } else {
           columnDefBuilder_.mergeFrom(value);
         }
-        bitField0_ |= 0x00000001;
-        onChanged();
+
         return this;
       }
       /**
        * <code>.greptime.v1.ColumnDef column_def = 1;</code>
        */
       public Builder clearColumnDef() {
-        bitField0_ = (bitField0_ & ~0x00000001);
-        columnDef_ = null;
-        if (columnDefBuilder_ != null) {
-          columnDefBuilder_.dispose();
+        if (columnDefBuilder_ == null) {
+          columnDef_ = null;
+          onChanged();
+        } else {
+          columnDef_ = null;
           columnDefBuilder_ = null;
         }
-        onChanged();
+
         return this;
       }
       /**
        * <code>.greptime.v1.ColumnDef column_def = 1;</code>
        */
       public io.greptime.v1.Columns.ColumnDef.Builder getColumnDefBuilder() {
-        bitField0_ |= 0x00000001;
+        
         onChanged();
         return getColumnDefFieldBuilder().getBuilder();
       }
@@ -11060,7 +12146,6 @@ java.lang.String defaultValue) {
       public Builder setIsKey(boolean value) {
         
         isKey_ = value;
-        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -11069,11 +12154,130 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearIsKey() {
-        bitField0_ = (bitField0_ & ~0x00000002);
+        
         isKey_ = false;
         onChanged();
         return this;
       }
+
+      private io.greptime.v1.Ddl.AddColumn.Location location_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+          io.greptime.v1.Ddl.AddColumn.Location, io.greptime.v1.Ddl.AddColumn.Location.Builder, io.greptime.v1.Ddl.AddColumn.LocationOrBuilder> locationBuilder_;
+      /**
+       * <code>.greptime.v1.AddColumn.Location location = 3;</code>
+       * @return Whether the location field is set.
+       */
+      public boolean hasLocation() {
+        return locationBuilder_ != null || location_ != null;
+      }
+      /**
+       * <code>.greptime.v1.AddColumn.Location location = 3;</code>
+       * @return The location.
+       */
+      public io.greptime.v1.Ddl.AddColumn.Location getLocation() {
+        if (locationBuilder_ == null) {
+          return location_ == null ? io.greptime.v1.Ddl.AddColumn.Location.getDefaultInstance() : location_;
+        } else {
+          return locationBuilder_.getMessage();
+        }
+      }
+      /**
+       * <code>.greptime.v1.AddColumn.Location location = 3;</code>
+       */
+      public Builder setLocation(io.greptime.v1.Ddl.AddColumn.Location value) {
+        if (locationBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          location_ = value;
+          onChanged();
+        } else {
+          locationBuilder_.setMessage(value);
+        }
+
+        return this;
+      }
+      /**
+       * <code>.greptime.v1.AddColumn.Location location = 3;</code>
+       */
+      public Builder setLocation(
+          io.greptime.v1.Ddl.AddColumn.Location.Builder builderForValue) {
+        if (locationBuilder_ == null) {
+          location_ = builderForValue.build();
+          onChanged();
+        } else {
+          locationBuilder_.setMessage(builderForValue.build());
+        }
+
+        return this;
+      }
+      /**
+       * <code>.greptime.v1.AddColumn.Location location = 3;</code>
+       */
+      public Builder mergeLocation(io.greptime.v1.Ddl.AddColumn.Location value) {
+        if (locationBuilder_ == null) {
+          if (location_ != null) {
+            location_ =
+              io.greptime.v1.Ddl.AddColumn.Location.newBuilder(location_).mergeFrom(value).buildPartial();
+          } else {
+            location_ = value;
+          }
+          onChanged();
+        } else {
+          locationBuilder_.mergeFrom(value);
+        }
+
+        return this;
+      }
+      /**
+       * <code>.greptime.v1.AddColumn.Location location = 3;</code>
+       */
+      public Builder clearLocation() {
+        if (locationBuilder_ == null) {
+          location_ = null;
+          onChanged();
+        } else {
+          location_ = null;
+          locationBuilder_ = null;
+        }
+
+        return this;
+      }
+      /**
+       * <code>.greptime.v1.AddColumn.Location location = 3;</code>
+       */
+      public io.greptime.v1.Ddl.AddColumn.Location.Builder getLocationBuilder() {
+        
+        onChanged();
+        return getLocationFieldBuilder().getBuilder();
+      }
+      /**
+       * <code>.greptime.v1.AddColumn.Location location = 3;</code>
+       */
+      public io.greptime.v1.Ddl.AddColumn.LocationOrBuilder getLocationOrBuilder() {
+        if (locationBuilder_ != null) {
+          return locationBuilder_.getMessageOrBuilder();
+        } else {
+          return location_ == null ?
+              io.greptime.v1.Ddl.AddColumn.Location.getDefaultInstance() : location_;
+        }
+      }
+      /**
+       * <code>.greptime.v1.AddColumn.Location location = 3;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+          io.greptime.v1.Ddl.AddColumn.Location, io.greptime.v1.Ddl.AddColumn.Location.Builder, io.greptime.v1.Ddl.AddColumn.LocationOrBuilder> 
+          getLocationFieldBuilder() {
+        if (locationBuilder_ == null) {
+          locationBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+              io.greptime.v1.Ddl.AddColumn.Location, io.greptime.v1.Ddl.AddColumn.Location.Builder, io.greptime.v1.Ddl.AddColumn.LocationOrBuilder>(
+                  getLocation(),
+                  getParentForChildren(),
+                  isClean());
+          location_ = null;
+        }
+        return locationBuilder_;
+      }
       @java.lang.Override
       public final Builder setUnknownFields(
           final com.google.protobuf.UnknownFieldSet unknownFields) {
@@ -11107,18 +12311,7 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new AddColumn(input, extensionRegistry);
       }
     };
 
@@ -11182,6 +12375,49 @@ java.lang.String defaultValue) {
     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;
@@ -11196,8 +12432,7 @@ java.lang.String defaultValue) {
     }
 
     public static final int NAME_FIELD_NUMBER = 1;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object name_ = "";
+    private volatile java.lang.Object name_;
     /**
      * <code>string name = 1;</code>
      * @return The name.
@@ -11248,10 +12483,10 @@ java.lang.String defaultValue) {
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      if (!getNameBytes().isEmpty()) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -11260,10 +12495,10 @@ java.lang.String defaultValue) {
       if (size != -1) return size;
 
       size = 0;
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      if (!getNameBytes().isEmpty()) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -11280,7 +12515,7 @@ java.lang.String defaultValue) {
 
       if (!getName()
           .equals(other.getName())) return false;
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -11293,7 +12528,7 @@ java.lang.String defaultValue) {
       hash = (19 * hash) + getDescriptor().hashCode();
       hash = (37 * hash) + NAME_FIELD_NUMBER;
       hash = (53 * hash) + getName().hashCode();
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -11410,19 +12645,24 @@ java.lang.String defaultValue) {
 
       // 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;
       }
 
@@ -11449,18 +12689,11 @@ java.lang.String defaultValue) {
       @java.lang.Override
       public io.greptime.v1.Ddl.DropColumn buildPartial() {
         io.greptime.v1.Ddl.DropColumn result = new io.greptime.v1.Ddl.DropColumn(this);
-        if (bitField0_ != 0) { buildPartial0(result); }
+        result.name_ = name_;
         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();
@@ -11507,10 +12740,9 @@ java.lang.String defaultValue) {
         if (other == io.greptime.v1.Ddl.DropColumn.getDefaultInstance()) return this;
         if (!other.getName().isEmpty()) {
           name_ = other.name_;
-          bitField0_ |= 0x00000001;
           onChanged();
         }
-        this.mergeUnknownFields(other.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -11525,38 +12757,19 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Ddl.DropColumn parsedMessage = null;
         try {
-          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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Ddl.DropColumn) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
-      private int bitField0_;
 
       private java.lang.Object name_ = "";
       /**
@@ -11599,9 +12812,11 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -11610,8 +12825,8 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearName() {
+        
         name_ = getDefaultInstance().getName();
-        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -11622,10 +12837,12 @@ java.lang.String defaultValue) {
        */
       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;
       }
@@ -11662,18 +12879,7 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new DropColumn(input, extensionRegistry);
       }
     };
 
@@ -11730,6 +12936,48 @@ java.lang.String defaultValue) {
     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;
@@ -11744,7 +12992,7 @@ java.lang.String defaultValue) {
     }
 
     public static final int ID_FIELD_NUMBER = 1;
-    private int id_ = 0;
+    private int id_;
     /**
      * <code>uint32 id = 1;</code>
      * @return The id.
@@ -11771,7 +13019,7 @@ java.lang.String defaultValue) {
       if (id_ != 0) {
         output.writeUInt32(1, id_);
       }
-      getUnknownFields().writeTo(output);
+      unknownFields.writeTo(output);
     }
 
     @java.lang.Override
@@ -11784,7 +13032,7 @@ java.lang.String defaultValue) {
         size += com.google.protobuf.CodedOutputStream
           .computeUInt32Size(1, id_);
       }
-      size += getUnknownFields().getSerializedSize();
+      size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -11801,7 +13049,7 @@ java.lang.String defaultValue) {
 
       if (getId()
           != other.getId()) return false;
-      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
 
@@ -11814,7 +13062,7 @@ java.lang.String defaultValue) {
       hash = (19 * hash) + getDescriptor().hashCode();
       hash = (37 * hash) + ID_FIELD_NUMBER;
       hash = (53 * hash) + getId();
-      hash = (29 * hash) + getUnknownFields().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -11931,19 +13179,24 @@ java.lang.String defaultValue) {
 
       // 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;
       }
 
@@ -11970,18 +13223,11 @@ java.lang.String defaultValue) {
       @java.lang.Override
       public io.greptime.v1.Ddl.TableId buildPartial() {
         io.greptime.v1.Ddl.TableId result = new io.greptime.v1.Ddl.TableId(this);
-        if (bitField0_ != 0) { buildPartial0(result); }
+        result.id_ = id_;
         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();
@@ -12029,7 +13275,7 @@ java.lang.String defaultValue) {
         if (other.getId() != 0) {
           setId(other.getId());
         }
-        this.mergeUnknownFields(other.getUnknownFields());
+        this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
       }
@@ -12044,38 +13290,19 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
+        io.greptime.v1.Ddl.TableId parsedMessage = null;
         try {
-          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)
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.Ddl.TableId) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          onChanged();
-        } // finally
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
         return this;
       }
-      private int bitField0_;
 
       private int id_ ;
       /**
@@ -12094,7 +13321,6 @@ java.lang.String defaultValue) {
       public Builder setId(int value) {
         
         id_ = value;
-        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -12103,7 +13329,7 @@ java.lang.String defaultValue) {
        * @return This builder for chaining.
        */
       public Builder clearId() {
-        bitField0_ = (bitField0_ & ~0x00000001);
+        
         id_ = 0;
         onChanged();
         return this;
@@ -12141,18 +13367,7 @@ java.lang.String defaultValue) {
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
-        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();
+        return new TableId(input, extensionRegistry);
       }
     };
 
@@ -12227,6 +13442,11 @@ java.lang.String defaultValue) {
   private static final 
     com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_greptime_v1_AddColumn_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_AddColumn_Location_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_AddColumn_Location_fieldAccessorTable;
   private static final com.google.protobuf.Descriptors.Descriptor
     internal_static_greptime_v1_DropColumn_descriptor;
   private static final 
@@ -12281,12 +13501,17 @@ java.lang.String defaultValue) {
       "\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"
+      "\026\n\016new_table_name\030\001 \001(\t\"\215\002\n\tAddColumn\022*\n" +
+      "\ncolumn_def\030\001 \001(\0132\026.greptime.v1.ColumnDe" +
+      "f\022\016\n\006is_key\030\002 \001(\010\0221\n\010location\030\003 \001(\0132\037.gr" +
+      "eptime.v1.AddColumn.Location\032\220\001\n\010Locatio" +
+      "n\022C\n\rlocation_type\030\001 \001(\0162,.greptime.v1.A" +
+      "ddColumn.Location.LocationType\022\031\n\021after_" +
+      "cloumn_name\030\002 \001(\t\"$\n\014LocationType\022\t\n\005FIR" +
+      "ST\020\000\022\t\n\005AFTER\020\001\"\032\n\nDropColumn\022\014\n\004name\030\001 " +
+      "\001(\t\"\025\n\007TableId\022\n\n\002id\030\001 \001(\rBL\n\016io.greptim" +
+      "e.v1B\003DdlZ5github.com/GreptimeTeam/grept" +
+      "ime-proto/go/greptime/v1b\006proto3"
     };
     descriptor = com.google.protobuf.Descriptors.FileDescriptor
       .internalBuildGeneratedFileFrom(descriptorData,
@@ -12358,7 +13583,13 @@ java.lang.String defaultValue) {
     internal_static_greptime_v1_AddColumn_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
         internal_static_greptime_v1_AddColumn_descriptor,
-        new java.lang.String[] { "ColumnDef", "IsKey", });
+        new java.lang.String[] { "ColumnDef", "IsKey", "Location", });
+    internal_static_greptime_v1_AddColumn_Location_descriptor =
+      internal_static_greptime_v1_AddColumn_descriptor.getNestedTypes().get(0);
+    internal_static_greptime_v1_AddColumn_Location_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_greptime_v1_AddColumn_Location_descriptor,
+        new java.lang.String[] { "LocationType", "AfterCloumnName", });
     internal_static_greptime_v1_DropColumn_descriptor =
       getDescriptor().getMessageTypes().get(10);
     internal_static_greptime_v1_DropColumn_fieldAccessorTable = new
diff --git a/proto/greptime/v1/ddl.proto b/proto/greptime/v1/ddl.proto
index 9270cc8..2acd65f 100644
--- a/proto/greptime/v1/ddl.proto
+++ b/proto/greptime/v1/ddl.proto
@@ -90,6 +90,16 @@ message RenameTable { string new_table_name = 1; }
 message AddColumn {
   ColumnDef column_def = 1;
   bool is_key = 2;
+
+  message Location {
+    enum LocationType {
+      FIRST = 0;
+      AFTER = 1;
+    }
+    LocationType location_type = 1;
+    string after_cloumn_name = 2;
+  }
+  Location location = 3;
 }
 
 message DropColumn { string name = 1; }