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6b20342651
In original code, sometimes one got an automatic DEFAULT value in some cases, in other cases not. For example: create table t1 (a int primary key) - No default create table t2 (a int, primary key(a)) - DEFAULT 0 create table t1 SELECT .... - Default for all fields, even if they where defined as NOT NULL ALTER TABLE ... MODIFY could sometimes add an unexpected DEFAULT value. The patch is quite big because we had some many test cases that used CREATE ... SELECT or CREATE ... (...PRIMARY KEY(xxx)) which doesn't have an automatic DEFAULT anymore. Other things: - Removed warnings from InnoDB when waiting from semaphore (got this when testing things with --big)
90 lines
2.7 KiB
Plaintext
90 lines
2.7 KiB
Plaintext
#
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# Bug#21704: Renaming column does not update FK definition.
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#
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# Test that it's not possible to rename columns participating in a
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# foreign key (either in the referencing or referenced table).
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CREATE TABLE t1 (a INT PRIMARY KEY, b INT) ROW_FORMAT=COMPACT ENGINE=INNODB;
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CREATE TABLE t2 (a INT PRIMARY KEY, b INT,
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CONSTRAINT fk1 FOREIGN KEY (a) REFERENCES t1(a))
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ROW_FORMAT=COMPACT ENGINE=INNODB;
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CREATE TABLE t3 (a INT PRIMARY KEY, b INT, KEY(b), C INT,
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CONSTRAINT fk2 FOREIGN KEY (b) REFERENCES t3 (a))
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ROW_FORMAT=COMPACT ENGINE=INNODB;
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INSERT INTO t1 VALUES (1,1),(2,2),(3,3);
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INSERT INTO t2 VALUES (1,1),(2,2),(3,3);
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INSERT INTO t3 VALUES (1,1,1),(2,2,2),(3,3,3);
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# Test renaming the column in the referenced table.
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ALTER TABLE t1 CHANGE a e INT;
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affected rows: 0
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info: Records: 0 Duplicates: 0 Warnings: 0
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# Ensure that online column rename works.
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ALTER TABLE t1 CHANGE b c INT;
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affected rows: 0
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info: Records: 0 Duplicates: 0 Warnings: 0
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# Test renaming the column in the referencing table
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ALTER TABLE t2 CHANGE a z INT;
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affected rows: 0
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info: Records: 0 Duplicates: 0 Warnings: 0
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# Ensure that online column rename works.
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ALTER TABLE t2 CHANGE b c INT;
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affected rows: 0
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info: Records: 0 Duplicates: 0 Warnings: 0
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# Test with self-referential constraints
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ALTER TABLE t3 CHANGE a f INT;
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affected rows: 0
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info: Records: 0 Duplicates: 0 Warnings: 0
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ALTER TABLE t3 CHANGE b g INT;
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affected rows: 0
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info: Records: 0 Duplicates: 0 Warnings: 0
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# Ensure that online column rename works.
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ALTER TABLE t3 CHANGE c d INT;
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affected rows: 0
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info: Records: 0 Duplicates: 0 Warnings: 0
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# Cleanup.
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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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`e` int(11) NOT NULL,
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`c` int(11) DEFAULT NULL,
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PRIMARY KEY (`e`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=COMPACT
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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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`z` int(11) NOT NULL,
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`c` int(11) DEFAULT NULL,
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PRIMARY KEY (`z`),
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CONSTRAINT `fk1` FOREIGN KEY (`z`) REFERENCES `t1` (`e`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=COMPACT
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SHOW CREATE TABLE t3;
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Table Create Table
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t3 CREATE TABLE `t3` (
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`f` int(11) NOT NULL,
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`g` int(11) DEFAULT NULL,
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`d` int(11) DEFAULT NULL,
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PRIMARY KEY (`f`),
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KEY `b` (`g`),
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CONSTRAINT `fk2` FOREIGN KEY (`g`) REFERENCES `t3` (`f`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=COMPACT
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SELECT f.*, c.*
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FROM INFORMATION_SCHEMA.INNODB_SYS_FOREIGN_COLS c
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INNER JOIN INFORMATION_SCHEMA.INNODB_SYS_FOREIGN f
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ON c.ID=f.ID
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WHERE FOR_NAME LIKE 'test/t%';
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ID FOR_NAME REF_NAME N_COLS TYPE ID FOR_COL_NAME REF_COL_NAME POS
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test/fk1 test/t2 test/t1 1 0 test/fk1 z e 0
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test/fk2 test/t3 test/t3 1 0 test/fk2 g f 0
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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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