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drop table if exists t1,t2;
create table t1 (
a int not null references t2,
b int not null constraint t2_c references t2 (c),
primary key (a,b),
foreign key (a) references t3 match full,
foreign key (a) references t3 match partial,
foreign key (a,b) references t3 (c,d) on delete no action
on update no action,
foreign key (a,b) references t3 (c,d) on update cascade,
foreign key (a,b) references t3 (c,d) on delete set default,
foreign key (a,b) references t3 (c,d) on update set null);
create index a on t1 (a);
create unique index b on t1 (a,b);
drop table t1;
create table t1 (id int primary key) engine = innodb;
create table t2 (id int PRIMARY KEY, FOREIGN KEY (id) REFERENCES t1(id)) engine=innodb;
insert into t1 values (1), (2), (3), (4), (5), (6);
insert into t2 values (3), (5);
delete from t1;
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`id`) REFERENCES `t1` (`id`))
select * from t1;
id
1
2
3
4
5
6
delete ignore from t1;
Warnings:
Warning 1451 Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`id`) REFERENCES `t1` (`id`))
Warning 1451 Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`id`) REFERENCES `t1` (`id`))
select row_count();
row_count()
-1
select * from t1;
id
3
5
drop table t2;
drop table t1;
drop table if exists t_34455;
create table t_34455 (
a int not null,
foreign key (a) references t3 (a) match full match partial);
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 'match partial)' at line 3
create table t_34455 (
a int not null,
foreign key (a) references t3 (a) on delete set default match full);
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 'match full)' at line 3
create table t_34455 (
a int not null,
foreign key (a) references t3 (a) on update set default match full);
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 'match full)' at line 3
create table t_34455 (
a int not null,
foreign key (a) references t3 (a)
on delete set default on delete 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 'delete set default)' at line 4
create table t_34455 (
a int not null,
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 4
create table t_34455 (a int not null);
alter table t_34455
add foreign key (a) references t3 (a) match full match partial);
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 'match partial)' at line 2
alter table t_34455
add foreign key (a) references t3 (a) on delete set default match full);
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 'match full)' at line 2
alter table t_34455
add foreign key (a) references t3 (a) on update set default match full);
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 'match full)' at line 2
alter table t_34455
add foreign key (a) references t3 (a)
on delete set default on delete 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 'delete set default)' at line 3
alter table t_34455
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 COLLATE=latin1_swedish_ci
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;
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