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964e409587
mysql-test/r/lock.result: Fixed wrong result for lock mysql-test/t/lock.test: Added timeouts to make test repeatable
98 lines
2.2 KiB
Plaintext
98 lines
2.2 KiB
Plaintext
#
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# Testing of table locking
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#
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drop table if exists t1,t2;
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CREATE TABLE t1 ( `id` int(11) NOT NULL default '0', `id2` int(11) NOT NULL default '0', `id3` int(11) NOT NULL default '0', `dummy1` char(30) default NULL, PRIMARY KEY (`id`,`id2`), KEY `index_id3` (`id3`)) TYPE=MyISAM;
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insert into t1 (id,id2) values (1,1),(1,2),(1,3);
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LOCK TABLE t1 WRITE;
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select dummy1,count(distinct id) from t1 group by dummy1;
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update t1 set id=-1 where id=1;
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LOCK TABLE t1 READ;
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--error 1099
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update t1 set id=1 where id=1;
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--error 1100
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create table t2 SELECT * from t1;
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create temporary table t2 SELECT * from t1;
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drop table if exists t2;
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unlock tables;
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create table t2 SELECT * from t1;
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LOCK TABLE t1 WRITE,t2 write;
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insert into t2 SELECT * from t1;
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update t1 set id=1 where id=-1;
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drop table t1,t2;
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#
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# Check bug with INSERT ... SELECT with lock tables
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#
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CREATE TABLE t1 (
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index1 smallint(6) default NULL,
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nr smallint(6) default NULL,
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KEY index1(index1)
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) TYPE=MyISAM;
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CREATE TABLE t2 (
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nr smallint(6) default NULL,
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name varchar(20) default NULL
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) TYPE=MyISAM;
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INSERT INTO t2 VALUES (1,'item1');
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INSERT INTO t2 VALUES (2,'item2');
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# problem begins here!
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lock tables t1 write, t2 read;
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insert into t1 select 1,nr from t2 where name='item1';
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insert into t1 select 2,nr from t2 where name='item2';
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unlock tables;
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check table t1;
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# Check error message
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lock tables t1 write;
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check table t2;
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unlock tables;
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drop table t1,t2;
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#test to see if select will get the lock ahead of low priority update
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connect (locker,localhost,root,,);
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connect (reader,localhost,root,,);
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connect (writer,localhost,root,,);
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connection locker;
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create table t1(n int);
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insert into t1 values (1);
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lock tables t1 write;
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connection writer;
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send update low_priority t1 set n = 4;
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connection reader;
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--sleep 2
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send select n from t1;
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connection locker;
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--sleep 2
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unlock tables;
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connection writer;
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reap;
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connection reader;
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reap;
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drop table t1;
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connection locker;
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create table t1(n int);
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insert into t1 values (1);
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lock tables t1 read;
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connection writer;
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send update low_priority t1 set n = 4;
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connection reader;
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--sleep 2
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send select n from t1;
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connection locker;
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--sleep 2
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unlock tables;
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connection writer;
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reap;
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connection reader;
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reap;
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drop table t1;
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