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MDEV-18463 Don't allow multiple table CONSTRAINTs with the same name.

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Add necessary checks.
This commit is contained in:
Alexey Botchkov
2019-12-09 01:17:16 +04:00
parent 6aa0fa3897
commit fd1979bc9a
3 changed files with 102 additions and 2 deletions
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26
mysql-test/r/foreign_key.result
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@ -82,3 +82,29 @@ add foreign key (a) references t3 (a)
on update set default on update set default);
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'update set default)' at line 3
drop table t_34455;
#
# MDEV-18460 Don't allow multiple table CONSTRAINTs with the same name.
#
CREATE TABLE tpk (id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,name VARCHAR(100) NOT NULL) ENGINE=Innodb;
CREATE TABLE tfk (c1 INT, c2 INT, CONSTRAINT sid UNIQUE (c1), CONSTRAINT sid CHECK (c2>15));
ERROR HY000: Duplicate CHECK constraint name 'sid'
CREATE TABLE tfk (c1 INT, c2 INT, CONSTRAINT sid UNIQUE (c1));
ALTER TABLE tfk ADD CONSTRAINT sid CHECK (c2>15);
ERROR HY000: Duplicate CHECK constraint name 'sid'
DROP TABLE tfk;
CREATE TABLE tfk (c1 INT, c2 INT,
CONSTRAINT sid FOREIGN KEY (c1) REFERENCES tpk (id)) ENGINE=Innodb;
show create table tfk;
Table Create Table
tfk CREATE TABLE `tfk` (
`c1` int(11) DEFAULT NULL,
`c2` int(11) DEFAULT NULL,
KEY `sid` (`c1`),
CONSTRAINT `sid` FOREIGN KEY (`c1`) REFERENCES `tpk` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
ALTER TABLE tfk ADD CONSTRAINT sid CHECK (c2>15);
ERROR HY000: Duplicate CHECK constraint name 'sid'
ALTER TABLE tfk ADD CONSTRAINT sid UNIQUE(c2);
ERROR 42000: Duplicate key name 'sid'
DROP TABLE tfk;
DROP TABLE tpk;