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MDEV-18630 Uninitialised value in FOREIGN KEY error message

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dict_create_foreign_constraints_low(): Clean up the way in
which the error messages are initialized, and ensure that
the table name is always initialized.
This commit is contained in:
Marko Mäkelä
2019-02-18 21:42:58 +02:00
parent 5b82751111
commit 98e185ee37
4 changed files with 59 additions and 64 deletions
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13
mysql-test/suite/innodb/r/foreign_key.result
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@@ -92,3 +92,16 @@ Warnings:
Warning 1088 failed to load FOREIGN KEY constraints
ALTER TABLE t1 ADD FULLTEXT INDEX ft2 (f);
DROP TABLE t1;
#
# MDEV-18630 Conditional jump or move depends on uninitialised value
# in ib_push_warning / dict_create_foreign_constraints_low
#
CREATE TABLE t1 (a INT) ENGINE=InnoDB;
ALTER IGNORE TABLE t1 ADD FOREIGN KEY (a) REFERENCES t2 (b);
ERROR HY000: Can't create table `test`.`#sql-temporary` (errno: 150 "Foreign key constraint is incorrectly formed")
SHOW WARNINGS;
Level Code Message
Warning 150 Alter table test/#sql-temporary with foreign key constraint failed. Referenced table `test`.`t2` not found in the data dictionary near 'FOREIGN KEY (a) REFERENCES t2 (b)'.
Error 1005 Can't create table `test`.`#sql-temporary` (errno: 150 "Foreign key constraint is incorrectly formed")
Warning 1215 Cannot add foreign key constraint
DROP TABLE t1;