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127 lines
4.3 KiB
Plaintext
127 lines
4.3 KiB
Plaintext
#
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# Bug #19471516 SERVER CRASHES WHEN EXECUTING ALTER TABLE
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# ADD FOREIGN KEY
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#
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CREATE TABLE `department` (`department_id` INT, `department_people_fk` INT,
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PRIMARY KEY (`department_id`)) engine=innodb;
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CREATE TABLE `title` (`title_id` INT, `title_manager_fk` INT,
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`title_reporter_fk` INT, PRIMARY KEY (`title_id`)) engine=innodb;
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CREATE TABLE `people` (`people_id` INT, PRIMARY KEY (`people_id`)) engine=innodb;
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ALTER TABLE `department` ADD FOREIGN KEY (`department_people_fk`) REFERENCES
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`people` (`people_id`);
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ALTER TABLE `title` ADD FOREIGN KEY (`title_manager_fk`) REFERENCES `people`
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(`people_id`);
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ALTER TABLE `title` ADD FOREIGN KEY (`title_reporter_fk`) REFERENCES `people`
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(`people_id`);
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drop table title, department, people;
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create table t1 (a int primary key, b int) engine=innodb;
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create table t2 (c int primary key, d int,
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foreign key (d) references t1 (a) on update cascade) engine=innodb;
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insert t1 values (1,1),(2,2),(3,3);
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insert t2 values (4,1),(5,2),(6,3);
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flush table t2 with read lock;
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connect con1,localhost,root;
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delete from t1 where a=2;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`d`) REFERENCES `t1` (`a`) ON UPDATE CASCADE)
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update t1 set a=10 where a=1;
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connection default;
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unlock tables;
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connection con1;
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connection default;
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lock table t2 write;
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connection con1;
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delete from t1 where a=2;
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connection default;
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unlock tables;
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connection con1;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`d`) REFERENCES `t1` (`a`) ON UPDATE CASCADE)
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connection default;
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unlock tables;
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disconnect con1;
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create user foo;
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grant select,update on test.t1 to foo;
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connect foo,localhost,foo;
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update t1 set a=30 where a=3;
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disconnect foo;
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connection default;
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select * from t2;
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c d
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5 2
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4 10
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6 30
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drop table t2, t1;
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drop user foo;
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create table t1 (f1 int primary key) engine=innodb;
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create table t2 (f2 int primary key) engine=innodb;
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create table t3 (f3 int primary key, foreign key (f3) references t2(f2)) engine=innodb;
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insert into t1 values (1),(2),(3),(4),(5);
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insert into t2 values (1),(2),(3),(4),(5);
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insert into t3 values (1),(2),(3),(4),(5);
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connect con1,localhost,root;
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set debug_sync='alter_table_before_rename_result_table signal g1 wait_for g2';
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alter table t2 add constraint foreign key (f2) references t1(f1) on delete cascade on update cascade;
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connection default;
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set debug_sync='before_execute_sql_command wait_for g1';
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update t1 set f1 = f1 + 100000 limit 2;
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connect con2,localhost,root;
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kill query UPDATE;
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disconnect con2;
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connection default;
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ERROR 70100: Query execution was interrupted
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set debug_sync='now signal g2';
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connection con1;
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show create table t2;
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Table Create Table
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t2 CREATE TABLE `t2` (
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`f2` int(11) NOT NULL,
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PRIMARY KEY (`f2`),
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CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`f2`) REFERENCES `t1` (`f1`) ON DELETE CASCADE ON UPDATE CASCADE
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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disconnect con1;
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connection default;
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select * from t2 where f2 not in (select f1 from t1);
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f2
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select * from t3 where f3 not in (select f2 from t2);
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f3
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drop table t3;
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drop table t2;
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drop table t1;
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set debug_sync='reset';
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create table t1 (a int primary key, b int) engine=innodb;
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create table t2 (c int primary key, d int,
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foreign key (d) references t1 (a) on update cascade) engine=innodb;
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insert t1 values (1,1),(2,2),(3,3);
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insert t2 values (4,1),(5,2),(6,3);
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flush table t2 with read lock;
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connect con1,localhost,root;
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delete from t1 where a=2;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`d`) REFERENCES `t1` (`a`) ON UPDATE CASCADE)
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update t1 set a=10 where a=1;
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connection default;
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unlock tables;
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connection con1;
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connection default;
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lock table t2 write;
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connection con1;
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delete from t1 where a=2;
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connection default;
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unlock tables;
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connection con1;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`d`) REFERENCES `t1` (`a`) ON UPDATE CASCADE)
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connection default;
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unlock tables;
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disconnect con1;
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create user foo;
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grant select,update on test.t1 to foo;
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connect foo,localhost,foo;
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update t1 set a=30 where a=3;
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disconnect foo;
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connection default;
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select * from t2;
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c d
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5 2
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4 10
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6 30
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drop table t2, t1;
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drop user foo;
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