tidb flags 源码
tidb flags 代码
文件路径：/parser/model/flags.go
// Copyright 2018 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package model
// Flags are used by tipb.SelectRequest.Flags to handle execution mode, like how to handle truncate error.
const (
// FlagIgnoreTruncate indicates if truncate error should be ignored.
// Read-only statements should ignore truncate error, write statements should not ignore truncate error.
FlagIgnoreTruncate uint64 = 1
// FlagTruncateAsWarning indicates if truncate error should be returned as warning.
// This flag only matters if FlagIgnoreTruncate is not set, in strict sql mode, truncate error should
// be returned as error, in non-strict sql mode, truncate error should be saved as warning.
FlagTruncateAsWarning = 1 << 1
// FlagPadCharToFullLength indicates if sql_mode 'PAD_CHAR_TO_FULL_LENGTH' is set.
FlagPadCharToFullLength = 1 << 2
// FlagInInsertStmt indicates if this is a INSERT statement.
FlagInInsertStmt = 1 << 3
// FlagInUpdateOrDeleteStmt indicates if this is a UPDATE statement or a DELETE statement.
FlagInUpdateOrDeleteStmt = 1 << 4
// FlagInSelectStmt indicates if this is a SELECT statement.
FlagInSelectStmt = 1 << 5
// FlagOverflowAsWarning indicates if overflow error should be returned as warning.
// In strict sql mode, overflow error should be returned as error,
// in non-strict sql mode, overflow error should be saved as warning.
FlagOverflowAsWarning = 1 << 6
// FlagIgnoreZeroInDate indicates if ZeroInDate error should be ignored.
// Read-only statements should ignore ZeroInDate error.
// Write statements should not ignore ZeroInDate error in strict sql mode.
FlagIgnoreZeroInDate = 1 << 7
// FlagDividedByZeroAsWarning indicates if DividedByZero should be returned as warning.
FlagDividedByZeroAsWarning = 1 << 8
// FlagInSetOprStmt indicates if this is a UNION/EXCEPT/INTERSECT statement.
FlagInSetOprStmt = 1 << 9
// FlagInLoadDataStmt indicates if this is a LOAD DATA statement.
FlagInLoadDataStmt = 1 << 10
// FlagInRestrictedSQL indicates if this request is in a restricted SQL. Auto Analyze is one example
FlagInRestrictedSQL = 1 << 11
)
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