mirror of
https://github.com/MariaDB/server.git
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154 lines
4.1 KiB
Text
154 lines
4.1 KiB
Text
#
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# Check for problems with delete
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#
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--disable_warnings
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drop table if exists t1,t11,t12,t2;
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--enable_warnings
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CREATE TABLE t1 (a tinyint(3), b tinyint(5));
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INSERT INTO t1 VALUES (1,1);
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INSERT LOW_PRIORITY INTO t1 VALUES (1,2);
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INSERT INTO t1 VALUES (1,3);
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DELETE from t1 where a=1 limit 1;
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DELETE LOW_PRIORITY from t1 where a=1;
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INSERT INTO t1 VALUES (1,1);
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DELETE from t1;
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LOCK TABLE t1 write;
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INSERT INTO t1 VALUES (1,2);
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DELETE from t1;
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UNLOCK TABLES;
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INSERT INTO t1 VALUES (1,2);
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SET AUTOCOMMIT=0;
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DELETE from t1;
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SET AUTOCOMMIT=1;
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drop table t1;
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#
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# Test of delete when the delete will cause a node to disappear and reappear
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# (This assumes a block size of 1024)
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#
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create table t1 (
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a bigint not null,
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b bigint not null default 0,
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c bigint not null default 0,
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d bigint not null default 0,
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e bigint not null default 0,
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f bigint not null default 0,
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g bigint not null default 0,
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h bigint not null default 0,
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i bigint not null default 0,
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j bigint not null default 0,
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primary key (a,b,c,d,e,f,g,h,i,j));
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insert into t1 (a) values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23);
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delete from t1 where a=26;
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drop table t1;
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create table t1 (
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a bigint not null,
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b bigint not null default 0,
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c bigint not null default 0,
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d bigint not null default 0,
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e bigint not null default 0,
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f bigint not null default 0,
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g bigint not null default 0,
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h bigint not null default 0,
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i bigint not null default 0,
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j bigint not null default 0,
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primary key (a,b,c,d,e,f,g,h,i,j));
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insert into t1 (a) values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23),(27);
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delete from t1 where a=27;
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drop table t1;
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CREATE TABLE `t1` (
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`i` int(10) NOT NULL default '0',
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`i2` int(10) NOT NULL default '0',
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PRIMARY KEY (`i`)
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);
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-- error 1054
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DELETE FROM t1 USING t1 WHERE post='1';
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drop table t1;
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#
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# CHAR(0) bug - not actually DELETE bug, but anyway...
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#
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CREATE TABLE t1 (
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bool char(0) default NULL,
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not_null varchar(20) binary NOT NULL default '',
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misc integer not null,
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PRIMARY KEY (not_null)
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) ENGINE=MyISAM;
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INSERT INTO t1 VALUES (NULL,'a',4), (NULL,'b',5), (NULL,'c',6), (NULL,'d',7);
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select * from t1 where misc > 5 and bool is null;
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delete from t1 where misc > 5 and bool is null;
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select * from t1 where misc > 5 and bool is null;
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select count(*) from t1;
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delete from t1 where 1 > 2;
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select count(*) from t1;
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delete from t1 where 3 > 2;
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select count(*) from t1;
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drop table t1;
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#
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# Bug #5733: Table handler error with self-join multi-table DELETE
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#
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create table t1 (a int not null auto_increment primary key, b char(32));
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insert into t1 (b) values ('apple'), ('apple');
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select * from t1;
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delete t1 from t1, t1 as t2 where t1.b = t2.b and t1.a > t2.a;
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select * from t1;
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drop table t1;
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#
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# IGNORE option
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#
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create table t11 (a int NOT NULL, b int, primary key (a));
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create table t12 (a int NOT NULL, b int, primary key (a));
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create table t2 (a int NOT NULL, b int, primary key (a));
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insert into t11 values (0, 10),(1, 11),(2, 12);
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insert into t12 values (33, 10),(0, 11),(2, 12);
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insert into t2 values (1, 21),(2, 12),(3, 23);
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select * from t11;
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select * from t12;
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select * from t2;
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-- error 1242
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delete t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b <> (select b from t2 where t11.a < t2.a);
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select * from t11;
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select * from t12;
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delete ignore t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b <> (select b from t2 where t11.a < t2.a);
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select * from t11;
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select * from t12;
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insert into t11 values (2, 12);
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-- error 1242
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delete from t11 where t11.b <> (select b from t2 where t11.a < t2.a);
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select * from t11;
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delete ignore from t11 where t11.b <> (select b from t2 where t11.a < t2.a);
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select * from t11;
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drop table t11, t12, t2;
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#
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# Bug #4198: deletion and KEYREAD
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#
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create table t1 (a int, b int, unique key (a), key (b));
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insert into t1 values (3, 3), (7, 7);
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delete t1 from t1 where a = 3;
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check table t1;
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select * from t1;
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drop table t1;
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#
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# Bug #8392: delete with ORDER BY containing a direct reference to the table
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#
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CREATE TABLE t1 ( a int PRIMARY KEY );
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DELETE FROM t1 WHERE t1.a > 0 ORDER BY t1.a;
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INSERT INTO t1 VALUES (0),(1),(2);
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DELETE FROM t1 WHERE t1.a > 0 ORDER BY t1.a LIMIT 1;
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SELECT * FROM t1;
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DROP TABLE t1;
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