Quelle rpl_foreign_key_innodb.result
Sprache: Lisp
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 50 611
connection slave;
SELECT * FROM t1 ORDER BY a;
a 10 11 12 13
SELECT * FROM t2 ORDER BY b;
b c 50 611
connection master; SET TIMESTAMP=1000000000;
CREATE TABLE t3 ( a INT UNIQUE ); SET FOREIGN_KEY_CHECKS=0;
INSERT INTO t3 VALUES (1),(1); ERROR23000: Duplicate entry '1' for key 'a'
connection slave;
connection master; SET FOREIGN_KEY_CHECKS=0;
DROP TABLE IF EXISTS t1,t2,t3; SET FOREIGN_KEY_CHECKS=1;
connection slave;
connection master;
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;
delete from t1;
must sync w/o a problem (could not with the buggy code)
connection slave;
select count(*) from t1 /* must be zero */;
count(*) 0
connection master;
drop table t2,t1; set foreign_key_checks=1;
#
# MDEV-25530Error1451 on slave: Cannot delete or update a parent row: a foreign key constraint fails
#
create table t1 (id int primary key)engine=innodb;
create table t2 (id int not null primary key auto_increment,
id2 int default null, key f1 (id2),
constraint f1 foreign key (id2) references t1 (id) on delete cascade) engine=innodb;
drop table t1,t2; ERROR23000: Cannot delete or update a parent row: a foreign key constraint fails
connection slave;
show tables;
Tables_in_test
t1
connection master;
drop table t1;
connection slave;
include/rpl_end.inc
Messung V0.5 in Prozent
¤ Dauer der Verarbeitung: 0.8 Sekunden
(vorverarbeitet am 2026-10-10)
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