database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-29 05:21:33 +03:00
Code Activity

MDEV-13417 UPDATE produces wrong values if an updated column is later used as an update source

Browse Source 
Standard compatible behavior for UPDATE: all assignments in SET
are executed "simultaneously", not left-to-right. And `SET a=b,b=a`
will swap the values.
This commit is contained in:
Jerome Brauge
2018-01-29 16:53:39 +01:00
committed by Sergei Golubchik
parent 355ee6877b
commit d943d7f712
29 changed files with 566 additions and 76 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
sql/sql_class.h
View File

@ -140,6 +140,7 @@ enum enum_binlog_row_image {
#define MODE_NO_ENGINE_SUBSTITUTION (1ULL << 30)
#define MODE_PAD_CHAR_TO_FULL_LENGTH (1ULL << 31)
#define MODE_EMPTY_STRING_IS_NULL (1ULL << 32)
#define MODE_SIMULTANEOUS_ASSIGNMENT (1ULL << 33)
/* Bits for different old style modes */
#define OLD_MODE_NO_DUP_KEY_WARNINGS_WITH_IGNORE (1 << 0)