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(the bug itself is not repeatable any more). mysql-test/r/lock.result: Update test results (Bug#18884) mysql-test/t/lock.test: Add a test case for Bug#18884 "lock table + global read lock = crash"
111 lines
2.9 KiB
Plaintext
111 lines
2.9 KiB
Plaintext
#
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# Testing of table locking
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#
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--disable_warnings
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drop table if exists t1,t2;
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--enable_warnings
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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`)) ENGINE=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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) ENGINE=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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) ENGINE=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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--error 1100
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insert into t1 select index1,nr from t1;
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unlock tables;
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lock tables t1 write, t1 as t1_alias read;
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insert into t1 select index1,nr from t1 as t1_alias;
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drop table t1,t2;
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#
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# BUG#5390 - problems with merge tables
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# Supplement test for the after-fix optimization
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# Check that a dropped table is correctly removed from a lock.
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create table t1 (c1 int);
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create table t2 (c1 int);
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create table t3 (c1 int);
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lock tables t1 write, t2 write, t3 write;
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# This removes one table after the other from the lock.
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drop table t2, t3, t1;
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#
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# Check that a lock merge works.
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create table t1 (c1 int);
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create table t2 (c1 int);
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create table t3 (c1 int);
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lock tables t1 write, t2 write, t3 write, t1 as t4 read;
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alter table t2 add column c2 int;
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drop table t1, t2, t3;
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# Bug7241 - Invalid response when DELETE .. USING and LOCK TABLES used.
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#
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create table t1 ( a int(11) not null auto_increment, primary key(a));
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create table t2 ( a int(11) not null auto_increment, primary key(a));
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lock tables t1 write, t2 read;
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delete from t1 using t1,t2 where t1.a=t2.a;
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delete t1 from t1,t2 where t1.a=t2.a;
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--error 1099
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delete from t2 using t1,t2 where t1.a=t2.a;
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--error 1099
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delete t2 from t1,t2 where t1.a=t2.a;
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drop table t1,t2;
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# End of 4.1 tests
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#
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# Bug#18884 "lock table + global read lock = crash"
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# The bug is not repeatable, just add the test case.
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#
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--disable_warnings
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drop table if exists t1;
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--enable_warnings
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create table t1 (a int);
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lock table t1 write;
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--error ER_LOCK_OR_ACTIVE_TRANSACTION
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flush tables with read lock;
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unlock tables;
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drop table t1;
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