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

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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
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4
mysql-test/suite/sys_vars/t/sql_mode_basic.test
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@ -307,11 +307,11 @@ SELECT @@global.sql_mode;
SET @@global.sql_mode = 500000;
SELECT @@global.sql_mode;
SET @@global.sql_mode = 8589934591;
SET @@global.sql_mode = 17179869183;
SELECT @@global.sql_mode;
--Error ER_WRONG_VALUE_FOR_VAR
SET @@global.sql_mode = 8589934592;
SET @@global.sql_mode = 17179869184;
# use of decimal values