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102 lines
3.2 KiB
Text
102 lines
3.2 KiB
Text
CREATE TABLE parent (a INT PRIMARY KEY) ENGINE=InnoDB;
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INSERT INTO parent SET a=1;
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CREATE TABLE child (a INT PRIMARY KEY, FOREIGN KEY (a) REFERENCES parent(a)
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ON UPDATE CASCADE)
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ENGINE=InnoDB;
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INSERT INTO child SET a=1;
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TRUNCATE TABLE parent;
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ERROR 42000: Cannot truncate a table referenced in a foreign key constraint (`test`.`child`, CONSTRAINT `child_ibfk_1` FOREIGN KEY (`a`) REFERENCES `test`.`parent` (`a`))
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TRUNCATE TABLE child;
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INSERT INTO child SET a=1;
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UPDATE parent SET a=2;
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SELECT * FROM child;
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a
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2
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connect dml,localhost,root;
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SET DEBUG_SYNC='foreign_constraint_update_cascade SIGNAL fk WAIT_FOR go';
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UPDATE parent SET a=3;
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connection default;
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SET DEBUG_SYNC='now WAIT_FOR fk';
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SET lock_wait_timeout=1;
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TRUNCATE TABLE child;
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ERROR HY000: Lock wait timeout exceeded; try restarting transaction
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SET DEBUG_SYNC='now SIGNAL go';
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connection dml;
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SELECT * FROM child;
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a
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3
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SET DEBUG_SYNC='foreign_constraint_check_for_update SIGNAL fk WAIT_FOR go';
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DELETE FROM parent;
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connection default;
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SET DEBUG_SYNC='now WAIT_FOR fk';
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SET lock_wait_timeout=1;
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TRUNCATE TABLE child;
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ERROR HY000: Lock wait timeout exceeded; try restarting transaction
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SET DEBUG_SYNC='now SIGNAL go';
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connection dml;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`child`, CONSTRAINT `child_ibfk_1` FOREIGN KEY (`a`) REFERENCES `parent` (`a`) ON UPDATE CASCADE)
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SELECT * FROM child;
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a
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3
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INSERT INTO parent SET a=5;
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SET DEBUG_SYNC='foreign_constraint_check_for_ins SIGNAL fk WAIT_FOR go';
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INSERT INTO child SET a=5;
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connection default;
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SET DEBUG_SYNC='now WAIT_FOR fk';
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SET foreign_key_checks=0, innodb_lock_wait_timeout=0;
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TRUNCATE TABLE parent;
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ERROR HY000: Lock wait timeout exceeded; try restarting transaction
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SET DEBUG_SYNC='now SIGNAL go';
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connection dml;
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SELECT * FROM parent;
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a
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3
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5
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SELECT * FROM child;
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a
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3
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5
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disconnect dml;
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connection default;
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SET DEBUG_SYNC = RESET;
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DROP TABLE child, parent;
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#
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# MDEV-24532 Table corruption ER_NO_SUCH_TABLE_IN_ENGINE or
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# ER_CRASHED_ON_USAGE after ALTER on table with foreign key
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#
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CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a)) ENGINE=InnoDB;
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ALTER TABLE t1 ADD FOREIGN KEY (b) REFERENCES t1 (a) ON UPDATE CASCADE;
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LOCK TABLE t1 WRITE;
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TRUNCATE TABLE t1;
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ALTER TABLE t1 ADD c INT;
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UNLOCK TABLES;
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DROP TABLE t1;
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#
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# MDEV-26052 Assertion prebuilt->trx_id < table->def_trx_id failed
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#
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call mtr.add_suppression("InnoDB: In ALTER TABLE `test`\\.`t1` has or is");
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CREATE TABLE t1 (pk INT, a INT, PRIMARY KEY (pk), KEY (a)) ENGINE=InnoDB;
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SET FOREIGN_KEY_CHECKS=0;
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ALTER TABLE t1 ADD FOREIGN KEY (a) REFERENCES t2 (a), ALGORITHM=COPY;
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INSERT INTO t1 VALUES (1,1);
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CREATE TABLE t2(f1 INT PRIMARY KEY)ENGINE=InnoDB;
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LOCK TABLES t1 WRITE;
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SET FOREIGN_KEY_CHECKS=1;
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TRUNCATE t1;
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ERROR HY000: Cannot add foreign key constraint for `t1`
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INSERT INTO t1 VALUES (2,2);
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ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`t1`, CONSTRAINT `t1_ibfk_1` FOREIGN KEY (`a`) REFERENCES `t2` (`a`))
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SELECT * FROM t1;
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pk a
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1 1
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UNLOCK TABLES;
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INSERT INTO t1 VALUES (2,2);
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ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`t1`, CONSTRAINT `t1_ibfk_1` FOREIGN KEY (`a`) REFERENCES `t2` (`a`))
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SET FOREIGN_KEY_CHECKS=0;
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INSERT INTO t1 VALUES (2,2);
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SELECT * FROM t1;
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pk a
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1 1
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2 2
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DROP TABLE t2, t1;
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# End of 10.6 tests
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