feat: add location info when adding columns (#38)

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`.
@@ -753,6 +799,7 @@ type AddColumn struct {
 
 	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{
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@@ -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
+	(AddColumn_Location_LocationType)(0), // 0: greptime.v1.AddColumn.Location.LocationType
-	(*CreateTableExpr)(nil),    // 1: greptime.v1.CreateTableExpr
+	(*DdlRequest)(nil),                   // 1: greptime.v1.DdlRequest
-	(*AlterExpr)(nil),          // 2: greptime.v1.AlterExpr
+	(*CreateTableExpr)(nil),              // 2: greptime.v1.CreateTableExpr
-	(*DropTableExpr)(nil),      // 3: greptime.v1.DropTableExpr
+	(*AlterExpr)(nil),                    // 3: greptime.v1.AlterExpr
-	(*FlushTableExpr)(nil),     // 4: greptime.v1.FlushTableExpr
+	(*DropTableExpr)(nil),                // 4: greptime.v1.DropTableExpr
-	(*CreateDatabaseExpr)(nil), // 5: greptime.v1.CreateDatabaseExpr
+	(*FlushTableExpr)(nil),               // 5: greptime.v1.FlushTableExpr
-	(*AddColumns)(nil),         // 6: greptime.v1.AddColumns
+	(*CreateDatabaseExpr)(nil),           // 6: greptime.v1.CreateDatabaseExpr
-	(*DropColumns)(nil),        // 7: greptime.v1.DropColumns
+	(*AddColumns)(nil),                   // 7: greptime.v1.AddColumns
-	(*RenameTable)(nil),        // 8: greptime.v1.RenameTable
+	(*DropColumns)(nil),                  // 8: greptime.v1.DropColumns
-	(*AddColumn)(nil),          // 9: greptime.v1.AddColumn
+	(*RenameTable)(nil),                  // 9: greptime.v1.RenameTable
-	(*DropColumn)(nil),         // 10: greptime.v1.DropColumn
+	(*AddColumn)(nil),                    // 10: greptime.v1.AddColumn
-	(*TableId)(nil),            // 11: greptime.v1.TableId
+	(*DropColumn)(nil),                   // 11: greptime.v1.DropColumn
-	nil,                        // 12: greptime.v1.CreateTableExpr.TableOptionsEntry
+	(*TableId)(nil),                      // 12: greptime.v1.TableId
-	(*ColumnDef)(nil),          // 13: greptime.v1.ColumnDef
+	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
+	6,  // 0: greptime.v1.DdlRequest.create_database:type_name -> greptime.v1.CreateDatabaseExpr
-	1,  // 1: greptime.v1.DdlRequest.create_table:type_name -> greptime.v1.CreateTableExpr
+	2,  // 1: greptime.v1.DdlRequest.create_table:type_name -> greptime.v1.CreateTableExpr
-	2,  // 2: greptime.v1.DdlRequest.alter:type_name -> greptime.v1.AlterExpr
+	3,  // 2: greptime.v1.DdlRequest.alter:type_name -> greptime.v1.AlterExpr
-	3,  // 3: greptime.v1.DdlRequest.drop_table:type_name -> greptime.v1.DropTableExpr
+	4,  // 3: greptime.v1.DdlRequest.drop_table:type_name -> greptime.v1.DropTableExpr
-	4,  // 4: greptime.v1.DdlRequest.flush_table:type_name -> greptime.v1.FlushTableExpr
+	5,  // 4: greptime.v1.DdlRequest.flush_table:type_name -> greptime.v1.FlushTableExpr
-	13, // 5: greptime.v1.CreateTableExpr.column_defs:type_name -> greptime.v1.ColumnDef
+	15, // 5: greptime.v1.CreateTableExpr.column_defs:type_name -> greptime.v1.ColumnDef
-	12, // 6: greptime.v1.CreateTableExpr.table_options:type_name -> greptime.v1.CreateTableExpr.TableOptionsEntry
+	13, // 6: greptime.v1.CreateTableExpr.table_options:type_name -> greptime.v1.CreateTableExpr.TableOptionsEntry
-	11, // 7: greptime.v1.CreateTableExpr.table_id:type_name -> greptime.v1.TableId
+	12, // 7: greptime.v1.CreateTableExpr.table_id:type_name -> greptime.v1.TableId
-	6,  // 8: greptime.v1.AlterExpr.add_columns:type_name -> greptime.v1.AddColumns
+	7,  // 8: greptime.v1.AlterExpr.add_columns:type_name -> greptime.v1.AddColumns
-	7,  // 9: greptime.v1.AlterExpr.drop_columns:type_name -> greptime.v1.DropColumns
+	8,  // 9: greptime.v1.AlterExpr.drop_columns:type_name -> greptime.v1.DropColumns
-	8,  // 10: greptime.v1.AlterExpr.rename_table:type_name -> greptime.v1.RenameTable
+	9,  // 10: greptime.v1.AlterExpr.rename_table:type_name -> greptime.v1.RenameTable
-	9,  // 11: greptime.v1.AddColumns.add_columns:type_name -> greptime.v1.AddColumn
+	10, // 11: greptime.v1.AddColumns.add_columns:type_name -> greptime.v1.AddColumn
-	10, // 12: greptime.v1.DropColumns.drop_columns:type_name -> greptime.v1.DropColumn
+	11, // 12: greptime.v1.DropColumns.drop_columns:type_name -> greptime.v1.DropColumn
-	13, // 13: greptime.v1.AddColumn.column_def:type_name -> greptime.v1.ColumnDef
+	15, // 13: greptime.v1.AddColumn.column_def:type_name -> greptime.v1.ColumnDef
-	14, // [14:14] is the sub-list for method output_type
+	14, // 14: greptime.v1.AddColumn.location:type_name -> greptime.v1.AddColumn.Location
-	14, // [14:14] is the sub-list for method input_type
+	0,  // 15: greptime.v1.AddColumn.Location.location_type:type_name -> greptime.v1.AddColumn.Location.LocationType
-	14, // [14:14] is the sub-list for extension type_name
+	16, // [16:16] is the sub-list for method output_type
-	14, // [14:14] is the sub-list for extension extendee
+	16, // [16:16] is the sub-list for method input_type
-	0,  // [0:14] is the sub-list for field type_name
+	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,
+			NumEnums:      1,
-			NumMessages:   13,
+			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

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; }