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MDEV-15620 Crash when using "SET @@NEW.a=expr" inside a trigger

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A simple patch fixing the problem in 5.5.
Note, a full patch was previously fixed to 10.3.
This commit is contained in:
Alexander Barkov
2018-03-27 09:40:10 +04:00
parent ddc5c65333
commit e8c2366bf8
3 changed files with 21 additions and 0 deletions
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9
mysql-test/t/parser.test
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@ -780,3 +780,12 @@ CREATE TRIGGER tr AFTER DELETE ON t1 FOR EACH ROW SET @a = 1\;
--error ER_PARSE_ERROR
PREPARE stmt FROM 'CREATE TRIGGER tr AFTER DELETE ON t1 FOR EACH ROW SET @a = 1\\';
DROP TABLE t1;
--echo #
--echo # MDEV-15620 Crash when using "SET @@NEW.a=expr" inside a trigger
--echo #
CREATE TABLE t1 (a INT);
--error ER_UNKNOWN_SYSTEM_VARIABLE
CREATE TRIGGER tr1 BEFORE INSERT ON t1 FOR EACH ROW SET @@NEW.a=0;
DROP TABLE t1;