wehub-resource-sync
66 lines
2.5 KiB
Go
66 lines
2.5 KiB
Go
// Copyright 2024 Dolthub, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package binary
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import (
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"github.com/dolthub/go-mysql-server/sql"
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"github.com/dolthub/doltgresql/server/functions/framework"
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pgtypes "github.com/dolthub/doltgresql/server/types"
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)
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// These functions can be gathered using the following query from a Postgres 15 instance:
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// SELECT * FROM pg_operator o WHERE o.oprname = '>>' ORDER BY o.oprcode::varchar;
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// initBinaryShiftRight registers the functions to the catalog.
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func initBinaryShiftRight() {
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framework.RegisterBinaryFunction(framework.Operator_BinaryShiftRight, int2shr)
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framework.RegisterBinaryFunction(framework.Operator_BinaryShiftRight, int4shr)
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framework.RegisterBinaryFunction(framework.Operator_BinaryShiftRight, int8shr)
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}
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// int2shr represents the PostgreSQL function of the same name, taking the same parameters.
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var int2shr = framework.Function2{
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Name: "int2shr",
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Return: pgtypes.Int16,
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Parameters: [2]*pgtypes.DoltgresType{pgtypes.Int16, pgtypes.Int32},
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Strict: true,
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Callable: func(ctx *sql.Context, _ [3]*pgtypes.DoltgresType, val1 any, val2 any) (any, error) {
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return int16(int32(val1.(int16)) >> val2.(int32)), nil
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},
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}
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// int4shr represents the PostgreSQL function of the same name, taking the same parameters.
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var int4shr = framework.Function2{
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Name: "int4shr",
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Return: pgtypes.Int32,
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Parameters: [2]*pgtypes.DoltgresType{pgtypes.Int32, pgtypes.Int32},
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Strict: true,
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Callable: func(ctx *sql.Context, _ [3]*pgtypes.DoltgresType, val1 any, val2 any) (any, error) {
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return int32(val1.(int32) >> val2.(int32)), nil
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},
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}
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// int8shr represents the PostgreSQL function of the same name, taking the same parameters.
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var int8shr = framework.Function2{
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Name: "int8shr",
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Return: pgtypes.Int64,
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Parameters: [2]*pgtypes.DoltgresType{pgtypes.Int64, pgtypes.Int32},
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Strict: true,
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Callable: func(ctx *sql.Context, _ [3]*pgtypes.DoltgresType, val1 any, val2 any) (any, error) {
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return int64(val1.(int64) >> int64(val2.(int32))), nil
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},
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}
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