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MDEV-18923 Assertion `!lex_string_cmp(system_charset_info, fk_info->referenced_table, &table->s->table_name)' failed in fk_truncate_illegal_if_parent

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don't assert the correctness of FK constraints, as it can be
broken under `SET FOREIGN_KEY_CHECKS= OFF`
This commit is contained in:
Sergei Golubchik
2019-04-03 10:57:45 +02:00
parent d5da8ae04d
commit 81a8d8be76
3 changed files with 34 additions and 9 deletions
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16
mysql-test/suite/innodb/t/innodb-truncate.test
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@ -62,3 +62,19 @@ INSERT INTO t1 VALUES (NULL), (NULL);
SELECT * FROM t1 ORDER BY a;
DROP TABLE t1;
#
# MDEV-18923 Assertion `!lex_string_cmp(system_charset_info, fk_info->referenced_table, &table->s->table_name)' failed in fk_truncate_illegal_if_parent
#
call mtr.add_suppression('InnoDB: Error: in RENAME TABLE table `test`.`t3`');
SET FOREIGN_KEY_CHECKS= OFF;
CREATE TABLE t1 (f2 INT, f4 INT, KEY(f2), FOREIGN KEY (f4) REFERENCES t3 (f4)) ENGINE=InnoDB;
SET FOREIGN_KEY_CHECKS= ON;
CREATE TABLE t2 (f2 INT, FOREIGN KEY(f2) REFERENCES t1 (f2)) ENGINE=InnoDB;
--error ER_CANT_CREATE_TABLE
CREATE TABLE t3 (a INT) ENGINE=InnoDB;
--error ER_ERROR_ON_RENAME
ALTER TABLE t1 RENAME TO t3;
ALTER TABLE t1 FORCE;
--error ER_TRUNCATE_ILLEGAL_FK
TRUNCATE TABLE t1;
DROP TABLE t2, t1;