tidb eval_type 源码
tidb eval_type 代码
文件路径：/types/eval_type.go
// Copyright 2017 PingCAP, 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 types
import ast "github.com/pingcap/tidb/parser/types"
// EvalType indicates the specified types that arguments and result of a built-in function should be.
type EvalType = ast.EvalType
const (
// ETInt represents type INT in evaluation.
ETInt = ast.ETInt
// ETReal represents type REAL in evaluation.
ETReal = ast.ETReal
// ETDecimal represents type DECIMAL in evaluation.
ETDecimal = ast.ETDecimal
// ETString represents type STRING in evaluation.
ETString = ast.ETString
// ETDatetime represents type DATETIME in evaluation.
ETDatetime = ast.ETDatetime
// ETTimestamp represents type TIMESTAMP in evaluation.
ETTimestamp = ast.ETTimestamp
// ETDuration represents type DURATION in evaluation.
ETDuration = ast.ETDuration
// ETJson represents type JSON in evaluation.
ETJson = ast.ETJson
)
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