mirror of
https://github.com/MariaDB/server.git
synced 2025-11-27 05:41:41 +03:00
41 lines
1.0 KiB
Plaintext
41 lines
1.0 KiB
Plaintext
drop table if exists t1;
|
|
set binlog_format=mixed;
|
|
set session transaction isolation level repeatable read;
|
|
create table t1(a int not null) engine=innodb DEFAULT CHARSET=latin1;
|
|
insert into t1 values (1),(2),(3),(4),(5),(6),(7);
|
|
set autocommit=0;
|
|
select * from t1 where a=3 lock in share mode;
|
|
a
|
|
3
|
|
set binlog_format=mixed;
|
|
set session transaction isolation level repeatable read;
|
|
set autocommit=0;
|
|
update t1 set a=10 where a=5;
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
commit;
|
|
set session transaction isolation level read committed;
|
|
update t1 set a=10 where a=5;
|
|
select * from t1 where a=2 for update;
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
select * from t1 where a=2 limit 1 for update;
|
|
a
|
|
2
|
|
update t1 set a=11 where a=6;
|
|
update t1 set a=12 where a=2;
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
update t1 set a=13 where a=1;
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
commit;
|
|
update t1 set a=14 where a=1;
|
|
commit;
|
|
select * from t1;
|
|
a
|
|
14
|
|
2
|
|
3
|
|
4
|
|
10
|
|
11
|
|
7
|
|
drop table t1;
|