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10590dd39c
MDEV-14222 Unnecessary 'cascade' memory allocation for every updated row when there is no FOREIGN KEY This reverts the MySQL 5.7.2 change377774689bwhich introduced these problems. MariaDB 10.2.2 inherited these problems in commit2e814d4702. The FOREIGN KEY CASCADE and SET NULL operations implemented as procedural recursion are consuming more than 8 kilobytes of stack (9 stack frames) per iteration in a non-debug GNU/Linux AMD64 build. This is why we need to limit the maximum recursion depth to 15 steps instead of the 255 that it used to be in MySQL 5.7 and MariaDB 10.2. A corresponding change was made in MySQL 5.7.21 in7b26dc98a6
309 lines
9.2 KiB
Plaintext
309 lines
9.2 KiB
Plaintext
#
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# Bug #19027905 ASSERT RET.SECOND DICT_CREATE_FOREIGN_CONSTRAINTS_LOW
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# DICT_CREATE_FOREIGN_CONSTR
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#
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create table t1 (f1 int primary key) engine=InnoDB;
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create table t2 (f1 int primary key,
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constraint c1 foreign key (f1) references t1(f1),
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constraint c1 foreign key (f1) references t1(f1)) engine=InnoDB;
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ERROR HY000: Can't create table `test`.`t2` (errno: 150 "Foreign key constraint is incorrectly formed")
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create table t2 (f1 int primary key,
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constraint c1 foreign key (f1) references t1(f1)) engine=innodb;
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alter table t2 add constraint c1 foreign key (f1) references t1(f1);
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ERROR HY000: Can't create table `test`.`#sql-temporary` (errno: 121 "Duplicate key on write or update")
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set foreign_key_checks = 0;
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alter table t2 add constraint c1 foreign key (f1) references t1(f1);
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ERROR HY000: Duplicate FOREIGN KEY constraint name 'test/c1'
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drop table t2, t1;
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#
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# Bug #20031243 CREATE TABLE FAILS TO CHECK IF FOREIGN KEY COLUMN
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# NULL/NOT NULL MISMATCH
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#
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set foreign_key_checks = 1;
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show variables like 'foreign_key_checks';
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Variable_name Value
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foreign_key_checks ON
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CREATE TABLE t1
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(a INT NOT NULL,
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b INT NOT NULL,
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INDEX idx(a)) ENGINE=InnoDB;
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CREATE TABLE t2
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(a INT KEY,
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b INT,
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INDEX ind(b),
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FOREIGN KEY (b) REFERENCES t1(a) ON DELETE CASCADE ON UPDATE CASCADE)
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ENGINE=InnoDB;
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) NOT NULL,
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`b` int(11) NOT NULL,
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KEY `idx` (`a`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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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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`a` int(11) NOT NULL,
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`b` int(11) DEFAULT NULL,
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PRIMARY KEY (`a`),
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KEY `ind` (`b`),
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CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`b`) REFERENCES `t1` (`a`) ON DELETE CASCADE ON UPDATE CASCADE
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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INSERT INTO t1 VALUES (1, 80);
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INSERT INTO t1 VALUES (2, 81);
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INSERT INTO t1 VALUES (3, 82);
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INSERT INTO t1 VALUES (4, 83);
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INSERT INTO t1 VALUES (5, 84);
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INSERT INTO t2 VALUES (51, 1);
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INSERT INTO t2 VALUES (52, 2);
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INSERT INTO t2 VALUES (53, 3);
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INSERT INTO t2 VALUES (54, 4);
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INSERT INTO t2 VALUES (55, 5);
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SELECT a, b FROM t1 ORDER BY a;
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a b
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1 80
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2 81
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3 82
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4 83
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5 84
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SELECT a, b FROM t2 ORDER BY a;
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a b
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51 1
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52 2
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53 3
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54 4
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55 5
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INSERT INTO t2 VALUES (56, 6);
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ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`b`) REFERENCES `t1` (`a`) ON DELETE CASCADE ON UPDATE CASCADE)
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ALTER TABLE t1 CHANGE a id INT;
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SELECT id, b FROM t1 ORDER BY id;
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id b
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1 80
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2 81
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3 82
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4 83
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5 84
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SELECT a, b FROM t2 ORDER BY a;
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a b
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51 1
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52 2
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53 3
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54 4
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55 5
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# Operations on child table
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INSERT INTO t2 VALUES (56, 6);
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ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`b`) REFERENCES `t1` (`id`) ON DELETE CASCADE ON UPDATE CASCADE)
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UPDATE t2 SET b = 99 WHERE a = 51;
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ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`b`) REFERENCES `t1` (`id`) ON DELETE CASCADE ON UPDATE CASCADE)
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DELETE FROM t2 WHERE a = 53;
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SELECT id, b FROM t1 ORDER BY id;
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id b
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1 80
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2 81
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3 82
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4 83
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5 84
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SELECT a, b FROM t2 ORDER BY a;
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a b
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51 1
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52 2
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54 4
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55 5
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# Operations on parent table
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DELETE FROM t1 WHERE id = 1;
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UPDATE t1 SET id = 50 WHERE id = 5;
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SELECT id, b FROM t1 ORDER BY id;
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id b
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2 81
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3 82
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4 83
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50 84
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SELECT a, b FROM t2 ORDER BY a;
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a b
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52 2
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54 4
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55 50
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DROP TABLE t2, t1;
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#
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# bug#25126722 FOREIGN KEY CONSTRAINT NAME IS NULL AFTER RESTART
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# base bug#24818604 [GR]
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#
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CREATE TABLE t1 (c1 INT PRIMARY KEY) ENGINE=InnoDB;
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CREATE TABLE t2 (c1 INT PRIMARY KEY, FOREIGN KEY (c1) REFERENCES t1(c1))
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ENGINE=InnoDB;
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INSERT INTO t1 VALUES (1);
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INSERT INTO t2 VALUES (1);
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SELECT unique_constraint_name FROM information_schema.referential_constraints
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WHERE table_name = 't2';
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unique_constraint_name
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PRIMARY
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SELECT unique_constraint_name FROM information_schema.referential_constraints
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WHERE table_name = 't2';
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unique_constraint_name
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PRIMARY
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SELECT * FROM t1;
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c1
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1
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SELECT unique_constraint_name FROM information_schema.referential_constraints
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WHERE table_name = 't2';
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unique_constraint_name
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PRIMARY
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DROP TABLE t2;
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DROP TABLE t1;
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SET FOREIGN_KEY_CHECKS=0;
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CREATE TABLE staff (
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staff_id TINYINT UNSIGNED NOT NULL AUTO_INCREMENT,
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store_id TINYINT UNSIGNED NOT NULL,
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PRIMARY KEY (staff_id),
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KEY idx_fk_store_id (store_id),
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CONSTRAINT fk_staff_store FOREIGN KEY (store_id) REFERENCES store (store_id) ON DELETE RESTRICT ON UPDATE CASCADE
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) ENGINE=InnoDB;
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CREATE TABLE store (
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store_id TINYINT UNSIGNED NOT NULL AUTO_INCREMENT,
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manager_staff_id TINYINT UNSIGNED NOT NULL,
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PRIMARY KEY (store_id),
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UNIQUE KEY idx_unique_manager (manager_staff_id),
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CONSTRAINT fk_store_staff FOREIGN KEY (manager_staff_id) REFERENCES staff (staff_id) ON DELETE RESTRICT ON UPDATE CASCADE
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) ENGINE=InnoDB;
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SET FOREIGN_KEY_CHECKS=DEFAULT;
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LOCK TABLE staff WRITE;
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UNLOCK TABLES;
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DROP TABLES staff, store;
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SET FOREIGN_KEY_CHECKS=1;
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#
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# MDEV-13246 Stale rows despite ON DELETE CASCADE constraint
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#
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CREATE TABLE users (
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id int unsigned AUTO_INCREMENT PRIMARY KEY,
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name varchar(32) NOT NULL DEFAULT ''
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) ENGINE=InnoDB DEFAULT CHARSET=utf8;
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CREATE TABLE matchmaking_groups (
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id bigint unsigned AUTO_INCREMENT PRIMARY KEY,
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host_user_id int unsigned NOT NULL UNIQUE,
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CONSTRAINT FOREIGN KEY (host_user_id) REFERENCES users (id)
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ON DELETE CASCADE ON UPDATE CASCADE
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) ENGINE=InnoDB DEFAULT CHARSET=utf8;
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CREATE TABLE matchmaking_group_users (
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matchmaking_group_id bigint unsigned NOT NULL,
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user_id int unsigned NOT NULL,
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PRIMARY KEY (matchmaking_group_id,user_id),
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UNIQUE KEY user_id (user_id),
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CONSTRAINT FOREIGN KEY (matchmaking_group_id)
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REFERENCES matchmaking_groups (id) ON DELETE CASCADE ON UPDATE CASCADE,
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CONSTRAINT FOREIGN KEY (user_id)
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REFERENCES users (id) ON DELETE CASCADE ON UPDATE CASCADE
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) ENGINE=InnoDB DEFAULT CHARSET=utf8;
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CREATE TABLE matchmaking_group_maps (
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matchmaking_group_id bigint unsigned NOT NULL,
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map_id tinyint unsigned NOT NULL,
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PRIMARY KEY (matchmaking_group_id,map_id),
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CONSTRAINT FOREIGN KEY (matchmaking_group_id)
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REFERENCES matchmaking_groups (id) ON DELETE CASCADE ON UPDATE CASCADE
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) ENGINE=InnoDB DEFAULT CHARSET=utf8;
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INSERT INTO users VALUES (NULL,'foo'),(NULL,'bar');
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INSERT INTO matchmaking_groups VALUES (10,1),(11,2);
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INSERT INTO matchmaking_group_users VALUES (10,1),(11,2);
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INSERT INTO matchmaking_group_maps VALUES (10,55),(11,66);
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BEGIN;
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UPDATE users SET name = 'qux' WHERE id = 1;
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connect con1,localhost,root,,;
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SET innodb_lock_wait_timeout= 1;
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DELETE FROM matchmaking_groups WHERE id = 10;
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connection default;
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COMMIT;
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SELECT * FROM matchmaking_group_users WHERE matchmaking_group_id NOT IN (SELECT id FROM matchmaking_groups);
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matchmaking_group_id user_id
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SELECT * FROM matchmaking_group_maps WHERE matchmaking_group_id NOT IN (SELECT id FROM matchmaking_groups);
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matchmaking_group_id map_id
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SELECT * FROM users;
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id name
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1 qux
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2 bar
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DROP TABLE
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matchmaking_group_maps, matchmaking_group_users, matchmaking_groups, users;
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#
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# MDEV-13331 FK DELETE CASCADE does not honor innodb_lock_wait_timeout
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#
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CREATE TABLE t1 (id INT NOT NULL PRIMARY KEY) ENGINE=InnoDB;
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CREATE TABLE t2 (
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id INT NOT NULL PRIMARY KEY,
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ref_id INT NOT NULL DEFAULT 0,
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f INT NULL,
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FOREIGN KEY (ref_id) REFERENCES t1 (id) ON DELETE CASCADE
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) ENGINE=InnoDB;
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INSERT INTO t1 VALUES (1),(2);
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INSERT INTO t2 VALUES (1,1,10),(2,2,20);
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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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`id` int(11) NOT NULL,
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`ref_id` int(11) NOT NULL DEFAULT 0,
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`f` int(11) DEFAULT NULL,
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PRIMARY KEY (`id`),
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KEY `ref_id` (`ref_id`),
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CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`ref_id`) REFERENCES `t1` (`id`) ON DELETE CASCADE
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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connection con1;
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BEGIN;
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UPDATE t2 SET f = 11 WHERE id = 1;
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connection default;
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SET innodb_lock_wait_timeout= 1;
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DELETE FROM t1 WHERE id = 1;
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ERROR HY000: Lock wait timeout exceeded; try restarting transaction
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connection con1;
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COMMIT;
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disconnect con1;
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connection default;
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SELECT * FROM t2;
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id ref_id f
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1 1 11
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2 2 20
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DELETE FROM t1 WHERE id = 1;
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SELECT * FROM t2;
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id ref_id f
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2 2 20
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DROP TABLE t2, t1;
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#
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# MDEV-15199 Referential integrity broken in ON DELETE CASCADE
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#
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CREATE TABLE member (id int AUTO_INCREMENT PRIMARY KEY) ENGINE=InnoDB;
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INSERT INTO member VALUES (1);
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CREATE TABLE address (
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id int AUTO_INCREMENT PRIMARY KEY,
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member_id int NOT NULL,
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KEY address_FI_1 (member_id),
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CONSTRAINT address_FK_1 FOREIGN KEY (member_id) REFERENCES member (id)
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ON DELETE CASCADE ON UPDATE CASCADE
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) ENGINE=InnoDB;
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INSERT INTO address VALUES (2,1);
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CREATE TABLE payment_method (
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id int AUTO_INCREMENT PRIMARY KEY,
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member_id int NOT NULL,
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cardholder_address_id int DEFAULT NULL,
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KEY payment_method_FI_1 (member_id),
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KEY payment_method_FI_2 (cardholder_address_id),
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CONSTRAINT payment_method_FK_1 FOREIGN KEY (member_id) REFERENCES member (id) ON DELETE CASCADE ON UPDATE CASCADE,
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CONSTRAINT payment_method_FK_2 FOREIGN KEY (cardholder_address_id) REFERENCES address (id) ON DELETE SET NULL ON UPDATE CASCADE
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) ENGINE=InnoDB;
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INSERT INTO payment_method VALUES (3,1,2);
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BEGIN;
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UPDATE member SET id=42;
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SELECT * FROM member;
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id
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42
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SELECT * FROM address;
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id member_id
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2 42
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SELECT * FROM payment_method;
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id member_id cardholder_address_id
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3 42 2
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DELETE FROM member;
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COMMIT;
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SELECT * FROM member;
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id
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SELECT * FROM address;
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id member_id
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SELECT * FROM payment_method;
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id member_id cardholder_address_id
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DROP TABLE payment_method,address,member;
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