chore: import upstream snapshot with attribution

2026-07-13 12:32:25 +08:00
commit e014feafe1
2285 changed files with 1131979 additions and 0 deletions
@@ -0,0 +1,88 @@
+// Copyright 2024 Dolthub, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package functions
+
+import (
+	"github.com/dolthub/go-mysql-server/sql"
+
+	"github.com/dolthub/doltgresql/utils"
+
+	"github.com/dolthub/doltgresql/server/functions/framework"
+	pgtypes "github.com/dolthub/doltgresql/server/types"
+)
+
+// initVoid registers the functions to the catalog.
+func initVoid() {
+	framework.RegisterFunction(void_in)
+	framework.RegisterFunction(void_out)
+	framework.RegisterFunction(void_recv)
+	framework.RegisterFunction(void_send)
+}
+
+// void_in represents the PostgreSQL function of void type IO input.
+var void_in = framework.Function2{
+	Name:       "void_in",
+	Return:     pgtypes.Void,
+	Parameters: [2]*pgtypes.DoltgresType{pgtypes.Cstring, pgtypes.Oid},
+	Strict:     true,
+	Callable: func(ctx *sql.Context, _ [3]*pgtypes.DoltgresType, val1, val2 any) (any, error) {
+		// TODO
+		return val1.(string), nil
+	},
+}
+
+// void_out represents the PostgreSQL function of void type IO output.
+var void_out = framework.Function1{
+	Name:       "void_out",
+	Return:     pgtypes.Cstring,
+	Parameters: [1]*pgtypes.DoltgresType{pgtypes.Void},
+	Strict:     true,
+	Callable: func(ctx *sql.Context, _ [2]*pgtypes.DoltgresType, val any) (any, error) {
+		// TODO
+		return "", nil
+	},
+}
+
+// void_recv represents the PostgreSQL function of void type IO receive.
+var void_recv = framework.Function2{
+	Name:       "void_recv",
+	Return:     pgtypes.Void,
+	Parameters: [2]*pgtypes.DoltgresType{pgtypes.Internal, pgtypes.Oid},
+	Strict:     true,
+	Callable: func(ctx *sql.Context, _ [3]*pgtypes.DoltgresType, val1, val2 any) (any, error) {
+		// TODO
+		data := val1.([]byte)
+		if len(data) == 0 {
+			return nil, nil
+		}
+		reader := utils.NewReader(data)
+		return reader.String(), nil
+	},
+}
+
+// void_send represents the PostgreSQL function of void type IO send.
+var void_send = framework.Function1{
+	Name:       "void_send",
+	Return:     pgtypes.Bytea,
+	Parameters: [1]*pgtypes.DoltgresType{pgtypes.Void},
+	Strict:     true,
+	Callable: func(ctx *sql.Context, _ [2]*pgtypes.DoltgresType, val any) (any, error) {
+		// TODO
+		str := val.(string)
+		writer := utils.NewWriter(uint64(len(str) + 4))
+		writer.String(str)
+		return writer.Data(), nil
+	},
+}