chore: import upstream snapshot with attribution

server/functions/int2vector.go

@@ -0,0 +1,88 @@
+// Copyright 2026 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 (
+	"strings"
+
+	"github.com/dolthub/go-mysql-server/sql"
+
+	"github.com/dolthub/doltgresql/core/id"
+	"github.com/dolthub/doltgresql/server/functions/framework"
+	pgtypes "github.com/dolthub/doltgresql/server/types"
+)
+
+// initInt2vector registers the functions to the catalog.
+func initInt2vector() {
+	framework.RegisterFunction(int2vectorin)
+	framework.RegisterFunction(int2vectorout)
+	framework.RegisterFunction(int2vectorrecv)
+	framework.RegisterFunction(int2vectorsend)
+}
+
+// int2vectorin represents the PostgreSQL function of int2vector type IO input.
+var int2vectorin = framework.Function1{
+	Name:       "int2vectorin",
+	Return:     pgtypes.Int16vector,
+	Parameters: [1]*pgtypes.DoltgresType{pgtypes.Cstring},
+	Strict:     true,
+	Callable: func(ctx *sql.Context, _ [2]*pgtypes.DoltgresType, val any) (any, error) {
+		input := val.(string)
+		strValues := strings.Split(input, " ")
+		var values = make([]any, len(strValues))
+		for i, strValue := range strValues {
+			innerValue, err := pgtypes.Int16.IoInput(ctx, strValue)
+			if err != nil {
+				return nil, err
+			}
+			values[i] = innerValue.(int16)
+		}
+		return values, nil
+	},
+}
+
+// int2vectorout represents the PostgreSQL function of int2vector type IO output.
+var int2vectorout = framework.Function1{
+	Name:       "int2vectorout",
+	Return:     pgtypes.Cstring,
+	Parameters: [1]*pgtypes.DoltgresType{pgtypes.Int16vector},
+	Strict:     true,
+	Callable: func(ctx *sql.Context, _ [2]*pgtypes.DoltgresType, val any) (any, error) {
+		return pgtypes.VectorToString(ctx, val.([]any), pgtypes.Int16)
+	},
+}
+
+// int2vectorrecv represents the PostgreSQL function of int2vector type IO receive.
+var int2vectorrecv = framework.Function1{
+	Name:       "int2vectorrecv",
+	Return:     pgtypes.Int16vector,
+	Parameters: [1]*pgtypes.DoltgresType{pgtypes.Internal},
+	Strict:     true,
+	Callable: func(ctx *sql.Context, t [2]*pgtypes.DoltgresType, val any) (any, error) {
+		tArr := [4]*pgtypes.DoltgresType{t[0], pgtypes.Oid, pgtypes.Int32, t[1]}
+		return array_recv.Callable(ctx, tArr, val, id.Cache().ToOID(t[1].ID.AsId()), -1)
+	},
+}
+
+// int2vectorsend represents the PostgreSQL function of int2vector type IO send.
+var int2vectorsend = framework.Function1{
+	Name:       "int2vectorsend",
+	Return:     pgtypes.Bytea,
+	Parameters: [1]*pgtypes.DoltgresType{pgtypes.Int16vector},
+	Strict:     true,
+	Callable: func(ctx *sql.Context, t [2]*pgtypes.DoltgresType, val any) (any, error) {
+		return array_send.Callable(ctx, t, val)
+	},
+}