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fixed bugs in temporary tables in subselect implementation (SCRUM)
merging with switching on static tables optimization (SCRUM) fixed subselects with uncacheable results added test for fixed bugs from bugreports mysql-test/r/subselect.result: changes in subselect test after switching on static tables optimization fixed bug test added uncacheable subselects mysql-test/t/subselect.test: changes in subselect test after switching on static tables optimization fixed bug test added uncacheable subselects sql/item_create.cc: fixed subselects with uncacheable results sql/item_func.cc: fixed subselects with uncacheable results sql/item_subselect.cc: fixed subselects with uncacheable results clean up sql/item_subselect.h: fixed subselects with uncacheable results sql/sql_lex.cc: fixed subselects with uncacheable results sql/sql_lex.h: fixed subselects with uncacheable results sql/sql_select.cc: fixed bugs in temporary tables in subselect implementation fixed subselects with uncacheable results sql/sql_union.cc: fixed subselects with uncacheable results sql/sql_yacc.yy: fixed subselects with uncacheable results
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@@ -278,7 +278,7 @@ NULL 1
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explain select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t2 ALL NULL NULL NULL NULL 2
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2 DEPENDENT SUBSELECT t1 system NULL NULL NULL NULL 1 Using where
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2 DEPENDENT SUBSELECT t1 system NULL NULL NULL NULL 1
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3 DEPENDENT UNION t5 ALL NULL NULL NULL NULL 2 Using where
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select (select a from t1 where t1.a=t2.a union all select a from t5 where t5.a=t2.a), a from t2;
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Subselect returns more than 1 record
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@@ -321,9 +321,9 @@ INSERT INTO t8 (pseudo,email) VALUES ('2joce1','2test1');
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EXPLAIN SELECT pseudo,(SELECT email FROM t8 WHERE pseudo=(SELECT pseudo FROM t8 WHERE pseudo='joce')) FROM t8 WHERE pseudo=(SELECT pseudo FROM t8 WHERE pseudo='joce');
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t8 const PRIMARY PRIMARY 35 const 1
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4 SUBSELECT t8 const PRIMARY PRIMARY 35 const 1
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4 SUBSELECT t8 const PRIMARY PRIMARY 35 1
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2 SUBSELECT t8 const PRIMARY PRIMARY 35 const 1
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3 SUBSELECT t8 const PRIMARY PRIMARY 35 const 1
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3 SUBSELECT t8 const PRIMARY PRIMARY 35 1
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SELECT pseudo FROM t8 WHERE pseudo=(SELECT pseudo,email FROM
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t8 WHERE pseudo='joce');
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Cardinality error (more/less than 1 columns)
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@@ -397,33 +397,51 @@ SELECT (SELECT 1) as a FROM (SELECT 1 FROM t1 HAVING a=1) b;
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Unknown column 'a' in 'having clause'
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SELECT 1 IN (SELECT 1 FROM t2 HAVING a);
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Unknown column 'a' in 'having clause'
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SELECT * from t2 where topic IN (SELECT topic FROM t2 GROUP BY date);
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mot topic date pseudo
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joce 40143 2002-10-22 joce
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SELECT * from t2 where topic IN (SELECT topic FROM t2 GROUP BY date HAVING topic < 4100);
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mot topic date pseudo
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SELECT * from t2 where topic IN (SELECT SUM(topic) FROM t1);
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mot topic date pseudo
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SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY date);
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mot topic date pseudo
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joce 40143 2002-10-22 joce
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SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY date HAVING topic < 4100);
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mot topic date pseudo
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SELECT * from t2 where topic = any (SELECT SUM(topic) FROM t1);
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mot topic date pseudo
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SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY date);
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mot topic date pseudo
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joce 40143 2002-10-22 joce
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SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY date HAVING topic < 4100);
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SELECT * from t2 where topic IN (SELECT topic FROM t2 GROUP BY topic);
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mot topic date pseudo
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joce 40143 2002-10-22 joce
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joce 43506 2002-10-22 joce
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SELECT * from t2 where topic IN (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100);
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mot topic date pseudo
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SELECT * from t2 where topic IN (SELECT SUM(topic) FROM t1);
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mot topic date pseudo
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SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY topic);
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mot topic date pseudo
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joce 40143 2002-10-22 joce
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joce 43506 2002-10-22 joce
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SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100);
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mot topic date pseudo
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SELECT * from t2 where topic = any (SELECT SUM(topic) FROM t1);
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mot topic date pseudo
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SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic);
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mot topic date pseudo
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SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100);
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mot topic date pseudo
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joce 40143 2002-10-22 joce
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joce 43506 2002-10-22 joce
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SELECT *, topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100) from t2;
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mot topic date pseudo topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100)
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joce 40143 2002-10-22 joce 1
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joce 43506 2002-10-22 joce 1
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SELECT * from t2 where topic = all (SELECT SUM(topic) FROM t2);
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mot topic date pseudo
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SELECT * from t2 where topic <> any (SELECT SUM(topic) FROM t2);
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mot topic date pseudo
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joce 40143 2002-10-22 joce
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joce 43506 2002-10-22 joce
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SELECT * from t2 where topic IN (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000);
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mot topic date pseudo
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joce 40143 2002-10-22 joce
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SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000);
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mot topic date pseudo
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joce 40143 2002-10-22 joce
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SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000);
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mot topic date pseudo
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joce 40143 2002-10-22 joce
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SELECT *, topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000) from t2;
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mot topic date pseudo topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000)
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joce 40143 2002-10-22 joce 1
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joce 43506 2002-10-22 joce 0
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drop table t1,t2;
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CREATE TABLE `t1` (
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`numeropost` mediumint(8) unsigned NOT NULL auto_increment,
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@@ -850,3 +868,86 @@ do (SELECT a from t1);
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Table 'test.t1' doesn't exist
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set @a:=(SELECT a from t1);
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Table 'test.t1' doesn't exist
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CREATE TABLE t1 (a int, KEY(a));
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HANDLER t1 OPEN;
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HANDLER t1 READ a=((SELECT 1));
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You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use
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HANDLER t1 CLOSE;
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drop table t1;
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create table t1 (a int);
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create table t2 (b int);
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insert into t1 values (1),(2);
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insert into t2 values (1);
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select a from t1 where a in (select a from t1 where a in (select b from t2));
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a
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1
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drop table t1, t2;
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create table t1 (a int, b int);
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create table t2 like t1;
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insert into t1 values (1,2),(1,3),(1,4),(1,5);
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insert into t2 values (1,2),(1,3);
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select * from t1 where row(a,b) in (select a,b from t2);
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a b
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1 2
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1 3
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drop table t1, t2;
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CREATE TABLE `t1` (`i` int(11) NOT NULL default '0',PRIMARY KEY (`i`)) TYPE=MyISAM CHARSET=latin1;
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INSERT INTO t1 VALUES (1);
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UPDATE t1 SET i=i+1 WHERE i=(SELECT MAX(i));
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Invalid use of group function
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drop table t1;
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CREATE TABLE t (a int(1));
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EXPLAIN SELECT (SELECT RAND() FROM t) FROM t;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t system NULL NULL NULL NULL 0 const row not found
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2 UNCACHEABLE SUBSELECT t system NULL NULL NULL NULL 0 const row not found
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EXPLAIN SELECT (SELECT ENCRYPT('test') FROM t) FROM t;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t system NULL NULL NULL NULL 0 const row not found
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2 UNCACHEABLE SUBSELECT t system NULL NULL NULL NULL 0 const row not found
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EXPLAIN SELECT (SELECT BENCHMARK(1,1) FROM t) FROM t;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t system NULL NULL NULL NULL 0 const row not found
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2 UNCACHEABLE SUBSELECT t system NULL NULL NULL NULL 0 const row not found
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drop table t;
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CREATE TABLE `t1` (
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`mot` varchar(30) character set latin1 NOT NULL default '',
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`topic` mediumint(8) unsigned NOT NULL default '0',
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`date` date NOT NULL default '0000-00-00',
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`pseudo` varchar(35) character set latin1 NOT NULL default '',
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PRIMARY KEY (`mot`,`pseudo`,`date`,`topic`),
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KEY `pseudo` (`pseudo`,`date`,`topic`),
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KEY `topic` (`topic`)
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) TYPE=MyISAM CHARSET=latin1 ROW_FORMAT=DYNAMIC;
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CREATE TABLE `t2` (
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`mot` varchar(30) character set latin1 NOT NULL default '',
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`topic` mediumint(8) unsigned NOT NULL default '0',
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`date` date NOT NULL default '0000-00-00',
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`pseudo` varchar(35) character set latin1 NOT NULL default '',
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PRIMARY KEY (`mot`,`pseudo`,`date`,`topic`),
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KEY `pseudo` (`pseudo`,`date`,`topic`),
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KEY `topic` (`topic`)
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) TYPE=MyISAM CHARSET=latin1 ROW_FORMAT=DYNAMIC;
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CREATE TABLE `t3` (
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`numeropost` mediumint(8) unsigned NOT NULL auto_increment,
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`maxnumrep` int(10) unsigned NOT NULL default '0',
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PRIMARY KEY (`numeropost`),
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UNIQUE KEY `maxnumrep` (`maxnumrep`)
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) TYPE=MyISAM CHARSET=latin1;
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INSERT INTO t1 VALUES ('joce','1','','joce'),('test','2','','test');
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INSERT INTO t2 VALUES ('joce','1','','joce'),('test','2','','test');
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INSERT INTO t3 VALUES (1,1);
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SELECT DISTINCT topic FROM t2 WHERE NOT EXISTS(SELECT * FROM t3 WHERE
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numeropost=topic);
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topic
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2
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select * from t1;
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mot topic date pseudo
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joce 1 0000-00-00 joce
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test 2 0000-00-00 test
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DELETE FROM t1 WHERE topic IN (SELECT DISTINCT topic FROM t2 WHERE NOT
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EXISTS(SELECT * FROM t3 WHERE numeropost=topic));
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select * from t1;
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mot topic date pseudo
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joce 1 0000-00-00 joce
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drop table t1, t2, t3;
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@@ -215,13 +215,13 @@ SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY topic HAVING t
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SELECT * from t2 where topic = any (SELECT SUM(topic) FROM t1);
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SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic);
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SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100);
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SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100;
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SELECT *, topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100) from t2;
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SELECT * from t2 where topic = all (SELECT SUM(topic) FROM t2);
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SELECT * from t2 where topic <> any (SELECT SUM(topic) FROM t2);
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delete from t2 where topic=40143;
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SELECT *, topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100) from t2;
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SELECT *, topic as fff, exists (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100 and fff = topic) from t2;
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SELECT * from t2 where topic IN (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000);
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SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000);
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SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000);
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SELECT *, topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000) from t2;
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drop table t1,t2;
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#forumconthardwarefr7
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@@ -483,3 +483,79 @@ drop table t1;
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do (SELECT a from t1);
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-- error 1146
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set @a:=(SELECT a from t1);
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CREATE TABLE t1 (a int, KEY(a));
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HANDLER t1 OPEN;
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-- error 1149
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HANDLER t1 READ a=((SELECT 1));
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HANDLER t1 CLOSE;
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drop table t1;
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create table t1 (a int);
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create table t2 (b int);
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insert into t1 values (1),(2);
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insert into t2 values (1);
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select a from t1 where a in (select a from t1 where a in (select b from t2));
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drop table t1, t2;
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create table t1 (a int, b int);
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create table t2 like t1;
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insert into t1 values (1,2),(1,3),(1,4),(1,5);
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insert into t2 values (1,2),(1,3);
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select * from t1 where row(a,b) in (select a,b from t2);
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drop table t1, t2;
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CREATE TABLE `t1` (`i` int(11) NOT NULL default '0',PRIMARY KEY (`i`)) TYPE=MyISAM CHARSET=latin1;
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INSERT INTO t1 VALUES (1);
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-- error 1111
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UPDATE t1 SET i=i+1 WHERE i=(SELECT MAX(i));
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drop table t1;
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#test of uncacheable subqueries
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CREATE TABLE t (a int(1));
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EXPLAIN SELECT (SELECT RAND() FROM t) FROM t;
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EXPLAIN SELECT (SELECT ENCRYPT('test') FROM t) FROM t;
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EXPLAIN SELECT (SELECT BENCHMARK(1,1) FROM t) FROM t;
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drop table t;
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CREATE TABLE `t1` (
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`mot` varchar(30) character set latin1 NOT NULL default '',
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`topic` mediumint(8) unsigned NOT NULL default '0',
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`date` date NOT NULL default '0000-00-00',
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`pseudo` varchar(35) character set latin1 NOT NULL default '',
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PRIMARY KEY (`mot`,`pseudo`,`date`,`topic`),
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KEY `pseudo` (`pseudo`,`date`,`topic`),
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KEY `topic` (`topic`)
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) TYPE=MyISAM CHARSET=latin1 ROW_FORMAT=DYNAMIC;
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CREATE TABLE `t2` (
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`mot` varchar(30) character set latin1 NOT NULL default '',
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`topic` mediumint(8) unsigned NOT NULL default '0',
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`date` date NOT NULL default '0000-00-00',
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`pseudo` varchar(35) character set latin1 NOT NULL default '',
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PRIMARY KEY (`mot`,`pseudo`,`date`,`topic`),
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KEY `pseudo` (`pseudo`,`date`,`topic`),
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KEY `topic` (`topic`)
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) TYPE=MyISAM CHARSET=latin1 ROW_FORMAT=DYNAMIC;
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CREATE TABLE `t3` (
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`numeropost` mediumint(8) unsigned NOT NULL auto_increment,
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`maxnumrep` int(10) unsigned NOT NULL default '0',
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PRIMARY KEY (`numeropost`),
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UNIQUE KEY `maxnumrep` (`maxnumrep`)
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) TYPE=MyISAM CHARSET=latin1;
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INSERT INTO t1 VALUES ('joce','1','','joce'),('test','2','','test');
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INSERT INTO t2 VALUES ('joce','1','','joce'),('test','2','','test');
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INSERT INTO t3 VALUES (1,1);
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SELECT DISTINCT topic FROM t2 WHERE NOT EXISTS(SELECT * FROM t3 WHERE
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numeropost=topic);
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select * from t1;
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DELETE FROM t1 WHERE topic IN (SELECT DISTINCT topic FROM t2 WHERE NOT
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EXISTS(SELECT * FROM t3 WHERE numeropost=topic));
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select * from t1;
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drop table t1, t2, t3;
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