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82 lines
2.7 KiB
Text
82 lines
2.7 KiB
Text
--source include/have_innodb.inc
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let $datadir=`select @@datadir`;
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--echo #
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--echo # TRUNCATE TABLE
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--echo #
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--echo # Truncating is disallowed for parent tables unless such table
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--echo # participates in self-referencing foreign keys only.
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--echo #
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CREATE TABLE t1 (pk INT PRIMARY KEY) ENGINE=INNODB;
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CREATE TABLE t2 (fk INT NOT NULL, FOREIGN KEY (fk) REFERENCES t1 (pk)) ENGINE=INNODB;
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--error ER_TRUNCATE_ILLEGAL_FK
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TRUNCATE TABLE t1;
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--echo # Truncation of child should succeed.
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TRUNCATE TABLE t2;
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DROP TABLE t2;
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DROP TABLE t1;
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CREATE TABLE t1 (pk INT PRIMARY KEY, fk INT,
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FOREIGN KEY (fk) REFERENCES t1 (pk)) ENGINE=INNODB;
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--echo # Truncation of self-referencing table should succeed.
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TRUNCATE TABLE t1;
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DROP TABLE t1;
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--echo #
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--echo # Also, truncating such tables is allowed if foreign key
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--echo # checks are disabled.
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--echo #
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SET @old_foreign_key_checks = @@SESSION.foreign_key_checks;
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CREATE TABLE t1 (pk INT PRIMARY KEY) ENGINE=INNODB;
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CREATE TABLE t2 (fk INT NOT NULL, FOREIGN KEY (fk) REFERENCES t1 (pk)) ENGINE=INNODB;
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CREATE TABLE t3 (pk INT PRIMARY KEY, fk INT,
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FOREIGN KEY (fk) REFERENCES t1 (pk)) ENGINE=INNODB;
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SET @@SESSION.foreign_key_checks = 0;
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TRUNCATE TABLE t1;
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TRUNCATE TABLE t2;
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TRUNCATE TABLE t3;
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SET @@SESSION.foreign_key_checks = 1;
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--error ER_TRUNCATE_ILLEGAL_FK
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TRUNCATE TABLE t1;
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TRUNCATE TABLE t2;
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TRUNCATE TABLE t3;
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LOCK TABLES t1 WRITE;
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SET @@SESSION.foreign_key_checks = 0;
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TRUNCATE TABLE t1;
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SET @@SESSION.foreign_key_checks = 1;
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--error ER_TRUNCATE_ILLEGAL_FK
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TRUNCATE TABLE t1;
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UNLOCK TABLES;
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DROP TABLE t3,t2,t1;
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SET @@SESSION.foreign_key_checks = @old_foreign_key_checks;
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--echo #
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--echo # Test that TRUNCATE resets auto-increment.
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--echo #
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CREATE TABLE t1 (a INT PRIMARY KEY NOT NULL AUTO_INCREMENT);
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INSERT INTO t1 VALUES (NULL), (NULL);
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SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE table_name = 't1';
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SELECT * FROM t1 ORDER BY a;
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TRUNCATE TABLE t1;
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SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE table_name = 't1';
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INSERT INTO t1 VALUES (NULL), (NULL);
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SELECT * FROM t1 ORDER BY a;
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DROP TABLE t1;
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#
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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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#
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call mtr.add_suppression('InnoDB: Error: in RENAME TABLE table `test`.`t3`');
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SET FOREIGN_KEY_CHECKS= OFF;
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CREATE TABLE t1 (f2 INT, f4 INT, KEY(f2), FOREIGN KEY (f4) REFERENCES t3 (f4)) ENGINE=InnoDB;
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SET FOREIGN_KEY_CHECKS= ON;
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CREATE TABLE t2 (f2 INT, FOREIGN KEY(f2) REFERENCES t1 (f2)) ENGINE=InnoDB;
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--error ER_CANT_CREATE_TABLE
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CREATE TABLE t3 (a INT) ENGINE=InnoDB;
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--replace_result $datadir ./
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--error ER_ERROR_ON_RENAME
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ALTER TABLE t1 RENAME TO t3;
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ALTER TABLE t1 FORCE;
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--error ER_TRUNCATE_ILLEGAL_FK
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TRUNCATE TABLE t1;
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DROP TABLE t2, t1;
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