include/master-slave.inc
[connection master]
CREATE TABLE t1 (a INT AUTO_INCREMENT KEY) ENGINE=INNODB;
CREATE TABLE t2 (b INT AUTO_INCREMENT KEY, c INT, FOREIGN KEY(b) REFERENCES t1(a)) ENGINE=INNODB;
SET FOREIGN_KEY_CHECKS=0;
INSERT INTO t1 VALUES (10);
INSERT INTO t1 VALUES (NULL),(NULL),(NULL);
INSERT INTO t2 VALUES (5,0);
INSERT INTO t2 VALUES (NULL,LAST_INSERT_ID());
SET FOREIGN_KEY_CHECKS=1;
SELECT * FROM t1 ORDER BY a;
a
10
11
12
13
SELECT * FROM t2 ORDER BY b;
b	c
5	0
6	11
SELECT * FROM t1 ORDER BY a;
a
10
11
12
13
SELECT * FROM t2 ORDER BY b;
b	c
5	0
6	11
SET TIMESTAMP=1000000000;
CREATE TABLE t3 ( a INT UNIQUE );
SET FOREIGN_KEY_CHECKS=0;
INSERT INTO t3 VALUES (1),(1);
Got one of the listed errors
SET FOREIGN_KEY_CHECKS=0;
DROP TABLE IF EXISTS t1,t2,t3;
SET FOREIGN_KEY_CHECKS=1;
create table t1 (b int primary key) engine = INNODB;
create table t2 (a int primary key, b int, foreign key (b) references t1(b))
engine = INNODB;
insert into t1 set b=1;
insert into t2 set a=1, b=1;
set foreign_key_checks=0;
set @@session.binlog_format=row;
delete from t1;
must sync w/o a problem (could not with the buggy code)
select count(*) from t1 /* must be zero */;
count(*)
0
drop table t2,t1;
include/rpl_end.inc