tidb types 代码
文件路径：/util/dbutil/types.go
/ Copyright 2022 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 dbutil
import (
"github.com/pingcap/tidb/parser/mysql"
)
/ IsNumberType returns true if tp is number type
func IsNumberType(tp byte) bool {
switch tp {
case mysql.TypeTiny, mysql.TypeShort, mysql.TypeLong, mysql.TypeLonglong, mysql.TypeInt24, mysql.TypeYear:
return true
}
return false
}
/ IsFloatType returns true if tp is float type
func IsFloatType(tp byte) bool {
switch tp {
case mysql.TypeFloat, mysql.TypeDouble, mysql.TypeNewDecimal:
return true
}
return false
}
/ IsTimeTypeAndNeedDecode returns true if tp is time type and encoded in tidb buckets.
func IsTimeTypeAndNeedDecode(tp byte) bool {
if tp == mysql.TypeDatetime || tp == mysql.TypeTimestamp || tp == mysql.TypeDate {
return true
}
return false
}