63 lines
2.0 KiB
Go
63 lines
2.0 KiB
Go
// Copyright 2025 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 functions
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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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// initNow registers the functions to the catalog.
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func initNow() {
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framework.RegisterFunction(clock_timestamp)
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framework.RegisterFunction(now)
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framework.RegisterFunction(timeofday_)
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}
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// clock_timestamp represents the PostgreSQL function of the same name, taking the same parameters.
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var clock_timestamp = framework.Function0{
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Name: "clock_timestamp",
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Return: pgtypes.TimestampTZ,
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Strict: true,
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Callable: func(ctx *sql.Context) (any, error) {
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// Current date and time (changes during statement execution)
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return ctx.QueryTime(), nil
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},
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}
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// now represents the PostgreSQL function of the same name, taking the same parameters.
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var now = framework.Function0{
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Name: "now",
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Return: pgtypes.TimestampTZ,
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Strict: true,
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Callable: func(ctx *sql.Context) (any, error) {
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// Current date and time (start of current transaction)
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return ctx.QueryTime(), nil
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},
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}
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// timeofday_ represents the PostgreSQL function of the same name, taking the same parameters.
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var timeofday_ = framework.Function0{
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Name: "timeofday",
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Return: pgtypes.TimestampTZ,
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Strict: true,
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Callable: func(ctx *sql.Context) (any, error) {
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// Current date and time (like clock_timestamp, but as a text string)
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return ctx.QueryTime().Format(`Wed Feb 25 11:06:39.999999 2015 PST`), nil
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},
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}
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