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b00c536378
BitKeeper/etc/ignore: Added mysql-test/linux_sys_vars.inc mysql-test/load_sysvars.inc mysql-test/windows_sys_vars.inc to the ignore list
59 lines
2.1 KiB
Text
59 lines
2.1 KiB
Text
'#--------------------FN_DYNVARS_032_01-------------------------#'
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SET @@session.foreign_key_checks = 0;
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'connect (con1,localhost,root,,,,)'
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'connection con1'
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SELECT @@session.foreign_key_checks;
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@@session.foreign_key_checks
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1
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SET @@session.foreign_key_checks = 1;
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'connect (con2,localhost,root,,,,)'
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'connection con2'
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SELECT @@session.foreign_key_checks;
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@@session.foreign_key_checks
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1
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'#--------------------FN_DYNVARS_032_02-------------------------#'
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'connection con1'
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DROP TABLE IF EXISTS t1,t2;
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CREATE TABLE t1(a INT PRIMARY KEY)ENGINE = INNODB;
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CREATE TABLE t2(a INT PRIMARY KEY,b INT)ENGINE = INNODB;
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ALTER TABLE t2
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ADD CONSTRAINT fk FOREIGN KEY (b) REFERENCES t1 (a);
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'---Check when foreign_key_checks is enabled---'
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SET @@session.foreign_key_checks = 1;
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INSERT INTO t1 values (1),(2),(3);
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INSERT INTO t2 values (10,1);
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INSERT INTO t2 values (20,22);
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ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `fk` FOREIGN KEY (`b`) REFERENCES `t1` (`a`))
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'---Check when foreign_key_checks is disabled---'
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TRUNCATE t1;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `fk` FOREIGN KEY (`b`) REFERENCES `t1` (`a`))
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SET @@session.foreign_key_checks = 0;
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TRUNCATE t1;
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TRUNCATE t2;
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INSERT INTO t1 values (1),(2),(3);
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INSERT INTO t2 values (10,1);
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INSERT INTO t2 values (20,4);
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'try enabling foreign_key_checks again';
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SET @@session.foreign_key_checks = 1;
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UPDATE t2 SET b=4 where a=20;
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'Bug#35358: Updating an incorrect foreign key(inserted by disabling '
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'foreign_key_checks)to the same value does not raise error after '
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'enabling foreign_key_checks'
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'Check when foreign_key_checks is enabled and FK constraint is re-created'
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SET @@session.foreign_key_checks = 0;
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TRUNCATE t2;
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TRUNCATE t1;
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INSERT INTO t1 values (1),(2),(3);
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INSERT INTO t2 values (10,1),(20,4);
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ALTER TABLE t2 DROP FOREIGN KEY fk;
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SET @@session.foreign_key_checks = 1;
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DELETE FROM t2 WHERE b not in (SELECT a from t1);
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ALTER TABLE t2
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ADD CONSTRAINT fk FOREIGN KEY (b) REFERENCES t1 (a);
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INSERT INTO t2 values (20,2);
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SELECT * from t2;
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a b
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10 1
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20 2
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DROP TABLE IF EXISTS t2;
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DROP TABLE IF EXISTS t1;
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