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Buat File | Buat Folder

Dir : ~/www/server/mysql/mysql-test/suite/innodb/r/

View File Name : cascade_lock_wait.result

create table t1 (f1 int primary key) engine=innodb;
create table t2 (f1 int primary key,
constraint c1 foreign key (f1) references t1(f1)
on update cascade
on delete cascade) engine=innodb;
create table t3 (f1 int primary key,
constraint c2 foreign key (f1) references t1(f1)
on update cascade
on delete cascade) engine=innodb;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `f1` int(11) NOT NULL,
  PRIMARY KEY (`f1`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
show create table t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `f1` int(11) NOT NULL,
  PRIMARY KEY (`f1`),
  CONSTRAINT `c1` FOREIGN KEY (`f1`) REFERENCES `t1` (`f1`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=latin1
show create table t3;
Table	Create Table
t3	CREATE TABLE `t3` (
  `f1` int(11) NOT NULL,
  PRIMARY KEY (`f1`),
  CONSTRAINT `c2` FOREIGN KEY (`f1`) REFERENCES `t1` (`f1`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=latin1
insert into t1 values (1);
insert into t1 values (2);
insert into t1 values (3);
insert into t2 values (1);
insert into t2 values (2);
insert into t2 values (3);
insert into t3 values (1);
insert into t3 values (2);
insert into t3 values (3);
select f1 from t1;
f1
1
2
3
select f1 from t2;
f1
1
2
3
select f1 from t3;
f1
1
2
3
SET DEBUG='+d,dml_cascade_only_once';
SET DEBUG='+d,row_upd_cascade_lock_wait_err';
update t1 set f1 = 100 where f1 = 2;
select f1 from t1;
f1
1
3
100
select f1 from t2;
f1
1
3
100
select f1 from t3;
f1
1
3
100
drop table t2;
drop table t3;
drop table t1;