wehub-resource-sync
47 lines
1.6 KiB
Go
47 lines
1.6 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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"time"
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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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// initToDate registers the functions to the catalog.
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func initToDate() {
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framework.RegisterFunction(to_date_text_text)
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}
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// to_date_text_text represents the PostgreSQL function of the same name, taking text input and format pattern.
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var to_date_text_text = framework.Function2{
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Name: "to_date",
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Return: pgtypes.Date,
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Parameters: [2]*pgtypes.DoltgresType{pgtypes.Text, pgtypes.Text},
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Strict: true,
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Callable: func(ctx *sql.Context, _ [3]*pgtypes.DoltgresType, val1, val2 any) (any, error) {
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input := val1.(string)
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format := val2.(string)
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// Parse the date using PostgreSQL format patterns
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t, err := getDateTimeFromFormat(ctx, input, format)
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// We return a version of the time but with the timezone completely stripped since they do not use timezones
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return time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, time.UTC), err
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},
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}
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