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Commit 7b797fe6 authored by Oleksandr Byelkin's avatar Oleksandr Byelkin
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Moving max/min optimization from prepare to optimization phase. MWL#148 

mysql-test/r/explain.result:
  fixed results (new item)
mysql-test/r/subselect.result:
  fixed results (new item)
mysql-test/r/subselect_no_mat.result:
  fixed results (new item)
mysql-test/r/subselect_no_opts.result:
  fixed results (new item)
mysql-test/r/subselect_no_semijoin.result:
  Fixed results (new item)
mysql-test/suite/pbxt/r/subselect.result:
  Fixed results (new item)
mysql-test/t/explain.test:
  Fixed results (correct behaviour)
sql/item_cmpfunc.cc:
  Pass through  for max/min
sql/item_subselect.cc:
  moving max/min
sql/item_subselect.h:
  moving max/min
sql/mysql_priv.h:
  new uncacheble flags added
sql/opt_subselect.cc:
  maxmin moved.
sql/opt_subselect.h:
  New function for maxmin.
sql/sql_class.h:
  debug code
sql/sql_lex.cc:
  Fixed flags.
  Limit setting fixed.
sql/sql_lex.h:
  2 new flags.
sql/sql_select.cc:
  Prepare divided on 2 function to be able recollect some info after transformation.
sql/sql_select.h:
  Prepare divided on 2 functions.
parent 0278b06e
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Showing with 413 additions and 234 deletions
mysql-test/r/explain.result
View file @ 7b797fe6
......@@ -176,11 +176,15 @@ SELECT @@session.sql_mode INTO @old_sql_mode;
SET SESSION sql_mode='ONLY_FULL_GROUP_BY';
EXPLAIN EXTENDED SELECT 1 FROM t1
WHERE f1 > ALL( SELECT t.f1 FROM t1,t1 AS t );
ERROR 42000: Mixing of GROUP columns (MIN(),MAX(),COUNT(),...) with no GROUP columns is illegal if there is no GROUP BY clause
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 SUBQUERY t1 system NULL NULL NULL NULL 0 0.00 const row not found
2 SUBQUERY t system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select 1 AS `1` from `test`.`t1` where 0
SHOW WARNINGS;
Level Code Message
Error 1140 Mixing of GROUP columns (MIN(),MAX(),COUNT(),...) with no GROUP columns is illegal if there is no GROUP BY clause
Note 1003 select 1 AS `1` from `test`.`t1` where <not>(<exists>(...))
Note 1003 select 1 AS `1` from `test`.`t1` where 0
SET SESSION sql_mode=@old_sql_mode;
DROP TABLE t1;
End of 5.0 tests.
......@@ -272,12 +276,12 @@ PREPARE stmt FROM
EXECUTE stmt;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY a system NULL NULL NULL NULL 1 Using filesort
2 SUBQUERY a system NULL NULL NULL NULL 1
2 SUBQUERY t1 fulltext f1 f1 0 1 Using where
EXECUTE stmt;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY a system NULL NULL NULL NULL 1 Using filesort
2 SUBQUERY a system NULL NULL NULL NULL 1
2 SUBQUERY t1 fulltext f1 f1 0 1 Using where
DEALLOCATE PREPARE stmt;
PREPARE stmt FROM
......@@ -288,12 +292,12 @@ PREPARE stmt FROM
EXECUTE stmt;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY a system NULL NULL NULL NULL 1 Using filesort
2 SUBQUERY a system NULL NULL NULL NULL 1
2 SUBQUERY t1 fulltext f1 f1 0 1 Using where
EXECUTE stmt;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
2 SUBQUERY a system NULL NULL NULL NULL 1 Using filesort
2 SUBQUERY a system NULL NULL NULL NULL 1
2 SUBQUERY t1 fulltext f1 f1 0 1 Using where
DEALLOCATE PREPARE stmt;
DROP TABLE t1;
......
mysql-test/r/subselect.result
View file @ 7b797fe6
......@@ -273,7 +273,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= (select min(`test`.`t2`.`b`) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= (select min(`test`.`t2`.`b`) from `test`.`t2`))))
select * from t3 where a >= all (select b from t2);
a
7
......@@ -1503,7 +1503,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` < (select max(NULL) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` < (select max(NULL) from `test`.`t2`))))
select * from t3 where a >= some (select b from t2);
a
explain extended select * from t3 where a >= some (select b from t2);
......@@ -1511,7 +1511,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= (select min(NULL) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= (select min(NULL) from `test`.`t2`))))
select * from t3 where a >= all (select b from t2 group by 1);
a
6
......@@ -1522,7 +1522,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` < <max>(select NULL from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` < <max>(select NULL from `test`.`t2` group by 1))))
select * from t3 where a >= some (select b from t2 group by 1);
a
explain extended select * from t3 where a >= some (select b from t2 group by 1);
......@@ -1530,7 +1530,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= <min>(select NULL from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= <min>(select NULL from `test`.`t2` group by 1))))
select * from t3 where NULL >= any (select b from t2);
a
explain extended select * from t3 where NULL >= any (select b from t2);
......@@ -1538,7 +1538,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= (select min(NULL) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= (select min(NULL) from `test`.`t2`))))
select * from t3 where NULL >= any (select b from t2 group by 1);
a
explain extended select * from t3 where NULL >= any (select b from t2 group by 1);
......@@ -1546,7 +1546,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= <min>(select NULL from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= <min>(select NULL from `test`.`t2` group by 1))))
select * from t3 where NULL >= some (select b from t2);
a
explain extended select * from t3 where NULL >= some (select b from t2);
......@@ -1554,7 +1554,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= (select min(NULL) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= (select min(NULL) from `test`.`t2`))))
select * from t3 where NULL >= some (select b from t2 group by 1);
a
explain extended select * from t3 where NULL >= some (select b from t2 group by 1);
......@@ -1562,7 +1562,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= <min>(select NULL from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= <min>(select NULL from `test`.`t2` group by 1))))
insert into t2 values (2,2), (2,1), (3,3), (3,1);
select * from t3 where a > all (select max(b) from t2 group by a);
a
......@@ -1573,7 +1573,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 4 100.00 Using temporary
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` <= <max>(select max(`test`.`t2`.`b`) from `test`.`t2` group by `test`.`t2`.`a`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` <= <max>(select max(`test`.`t2`.`b`) from `test`.`t2` group by `test`.`t2`.`a`))))
drop table t2, t3;
CREATE TABLE `t1` ( `id` mediumint(9) NOT NULL auto_increment, `taskid` bigint(20) NOT NULL default '0', `dbid` int(11) NOT NULL default '0', `create_date` datetime NOT NULL default '0000-00-00 00:00:00', `last_update` datetime NOT NULL default '0000-00-00 00:00:00', PRIMARY KEY (`id`)) ENGINE=MyISAM CHARSET=latin1 AUTO_INCREMENT=3 ;
INSERT INTO `t1` (`id`, `taskid`, `dbid`, `create_date`,`last_update`) VALUES (1, 1, 15, '2003-09-29 10:31:36', '2003-09-29 10:31:36'), (2, 1, 21, now(), now());
......@@ -1624,7 +1624,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
3 UNION t1 system NULL NULL NULL NULL 1 100.00
NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 select 'e' AS `s1` from `test`.`t1` where <nop>(('f' > <min>(select 'e' from `test`.`t1` union select 'e' from `test`.`t1`)))
Note 1003 select 'e' AS `s1` from `test`.`t1` where <nop>(<in_optimizer>('f',('f' > <min>(select 'e' from `test`.`t1` union select 'e' from `test`.`t1`))))
drop table t1;
CREATE TABLE t1 (number char(11) NOT NULL default '') ENGINE=MyISAM CHARSET=latin1;
INSERT INTO t1 VALUES ('69294728265'),('18621828126'),('89356874041'),('95895001874');
......
mysql-test/r/subselect_no_mat.result
View file @ 7b797fe6
......@@ -277,7 +277,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= (select min(`test`.`t2`.`b`) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= (select min(`test`.`t2`.`b`) from `test`.`t2`))))
select * from t3 where a >= all (select b from t2);
a
7
......@@ -1507,7 +1507,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` < (select max(NULL) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` < (select max(NULL) from `test`.`t2`))))
select * from t3 where a >= some (select b from t2);
a
explain extended select * from t3 where a >= some (select b from t2);
......@@ -1515,7 +1515,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= (select min(NULL) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= (select min(NULL) from `test`.`t2`))))
select * from t3 where a >= all (select b from t2 group by 1);
a
6
......@@ -1526,7 +1526,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` < <max>(select NULL from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` < <max>(select NULL from `test`.`t2` group by 1))))
select * from t3 where a >= some (select b from t2 group by 1);
a
explain extended select * from t3 where a >= some (select b from t2 group by 1);
......@@ -1534,7 +1534,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= <min>(select NULL from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= <min>(select NULL from `test`.`t2` group by 1))))
select * from t3 where NULL >= any (select b from t2);
a
explain extended select * from t3 where NULL >= any (select b from t2);
......@@ -1542,7 +1542,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= (select min(NULL) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= (select min(NULL) from `test`.`t2`))))
select * from t3 where NULL >= any (select b from t2 group by 1);
a
explain extended select * from t3 where NULL >= any (select b from t2 group by 1);
......@@ -1550,7 +1550,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= <min>(select NULL from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= <min>(select NULL from `test`.`t2` group by 1))))
select * from t3 where NULL >= some (select b from t2);
a
explain extended select * from t3 where NULL >= some (select b from t2);
......@@ -1558,7 +1558,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= (select min(NULL) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= (select min(NULL) from `test`.`t2`))))
select * from t3 where NULL >= some (select b from t2 group by 1);
a
explain extended select * from t3 where NULL >= some (select b from t2 group by 1);
......@@ -1566,7 +1566,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= <min>(select NULL from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= <min>(select NULL from `test`.`t2` group by 1))))
insert into t2 values (2,2), (2,1), (3,3), (3,1);
select * from t3 where a > all (select max(b) from t2 group by a);
a
......@@ -1577,7 +1577,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 4 100.00 Using temporary
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` <= <max>(select max(`test`.`t2`.`b`) from `test`.`t2` group by `test`.`t2`.`a`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` <= <max>(select max(`test`.`t2`.`b`) from `test`.`t2` group by `test`.`t2`.`a`))))
drop table t2, t3;
CREATE TABLE `t1` ( `id` mediumint(9) NOT NULL auto_increment, `taskid` bigint(20) NOT NULL default '0', `dbid` int(11) NOT NULL default '0', `create_date` datetime NOT NULL default '0000-00-00 00:00:00', `last_update` datetime NOT NULL default '0000-00-00 00:00:00', PRIMARY KEY (`id`)) ENGINE=MyISAM CHARSET=latin1 AUTO_INCREMENT=3 ;
INSERT INTO `t1` (`id`, `taskid`, `dbid`, `create_date`,`last_update`) VALUES (1, 1, 15, '2003-09-29 10:31:36', '2003-09-29 10:31:36'), (2, 1, 21, now(), now());
......@@ -1628,7 +1628,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
3 UNION t1 system NULL NULL NULL NULL 1 100.00
NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 select 'e' AS `s1` from `test`.`t1` where <nop>(('f' > <min>(select 'e' from `test`.`t1` union select 'e' from `test`.`t1`)))
Note 1003 select 'e' AS `s1` from `test`.`t1` where <nop>(<in_optimizer>('f',('f' > <min>(select 'e' from `test`.`t1` union select 'e' from `test`.`t1`))))
drop table t1;
CREATE TABLE t1 (number char(11) NOT NULL default '') ENGINE=MyISAM CHARSET=latin1;
INSERT INTO t1 VALUES ('69294728265'),('18621828126'),('89356874041'),('95895001874');
......
mysql-test/r/subselect_no_opts.result
View file @ 7b797fe6
......@@ -274,7 +274,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= (select min(`test`.`t2`.`b`) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= (select min(`test`.`t2`.`b`) from `test`.`t2`))))
select * from t3 where a >= all (select b from t2);
a
7
......@@ -1504,7 +1504,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` < (select max(NULL) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` < (select max(NULL) from `test`.`t2`))))
select * from t3 where a >= some (select b from t2);
a
explain extended select * from t3 where a >= some (select b from t2);
......@@ -1512,7 +1512,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= (select min(NULL) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= (select min(NULL) from `test`.`t2`))))
select * from t3 where a >= all (select b from t2 group by 1);
a
6
......@@ -1523,7 +1523,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` < <max>(select NULL from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` < <max>(select NULL from `test`.`t2` group by 1))))
select * from t3 where a >= some (select b from t2 group by 1);
a
explain extended select * from t3 where a >= some (select b from t2 group by 1);
......@@ -1531,7 +1531,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= <min>(select NULL from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= <min>(select NULL from `test`.`t2` group by 1))))
select * from t3 where NULL >= any (select b from t2);
a
explain extended select * from t3 where NULL >= any (select b from t2);
......@@ -1539,7 +1539,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= (select min(NULL) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= (select min(NULL) from `test`.`t2`))))
select * from t3 where NULL >= any (select b from t2 group by 1);
a
explain extended select * from t3 where NULL >= any (select b from t2 group by 1);
......@@ -1547,7 +1547,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= <min>(select NULL from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= <min>(select NULL from `test`.`t2` group by 1))))
select * from t3 where NULL >= some (select b from t2);
a
explain extended select * from t3 where NULL >= some (select b from t2);
......@@ -1555,7 +1555,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= (select min(NULL) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= (select min(NULL) from `test`.`t2`))))
select * from t3 where NULL >= some (select b from t2 group by 1);
a
explain extended select * from t3 where NULL >= some (select b from t2 group by 1);
......@@ -1563,7 +1563,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= <min>(select NULL from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= <min>(select NULL from `test`.`t2` group by 1))))
insert into t2 values (2,2), (2,1), (3,3), (3,1);
select * from t3 where a > all (select max(b) from t2 group by a);
a
......@@ -1574,7 +1574,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 4 100.00 Using temporary
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` <= <max>(select max(`test`.`t2`.`b`) from `test`.`t2` group by `test`.`t2`.`a`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` <= <max>(select max(`test`.`t2`.`b`) from `test`.`t2` group by `test`.`t2`.`a`))))
drop table t2, t3;
CREATE TABLE `t1` ( `id` mediumint(9) NOT NULL auto_increment, `taskid` bigint(20) NOT NULL default '0', `dbid` int(11) NOT NULL default '0', `create_date` datetime NOT NULL default '0000-00-00 00:00:00', `last_update` datetime NOT NULL default '0000-00-00 00:00:00', PRIMARY KEY (`id`)) ENGINE=MyISAM CHARSET=latin1 AUTO_INCREMENT=3 ;
INSERT INTO `t1` (`id`, `taskid`, `dbid`, `create_date`,`last_update`) VALUES (1, 1, 15, '2003-09-29 10:31:36', '2003-09-29 10:31:36'), (2, 1, 21, now(), now());
......@@ -1625,7 +1625,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
3 UNION t1 system NULL NULL NULL NULL 1 100.00
NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 select 'e' AS `s1` from `test`.`t1` where <nop>(('f' > <min>(select 'e' from `test`.`t1` union select 'e' from `test`.`t1`)))
Note 1003 select 'e' AS `s1` from `test`.`t1` where <nop>(<in_optimizer>('f',('f' > <min>(select 'e' from `test`.`t1` union select 'e' from `test`.`t1`))))
drop table t1;
CREATE TABLE t1 (number char(11) NOT NULL default '') ENGINE=MyISAM CHARSET=latin1;
INSERT INTO t1 VALUES ('69294728265'),('18621828126'),('89356874041'),('95895001874');
......
mysql-test/r/subselect_no_semijoin.result
View file @ 7b797fe6
......@@ -274,7 +274,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= (select min(`test`.`t2`.`b`) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= (select min(`test`.`t2`.`b`) from `test`.`t2`))))
select * from t3 where a >= all (select b from t2);
a
7
......@@ -1504,7 +1504,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` < (select max(NULL) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` < (select max(NULL) from `test`.`t2`))))
select * from t3 where a >= some (select b from t2);
a
explain extended select * from t3 where a >= some (select b from t2);
......@@ -1512,7 +1512,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= (select min(NULL) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= (select min(NULL) from `test`.`t2`))))
select * from t3 where a >= all (select b from t2 group by 1);
a
6
......@@ -1523,7 +1523,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` < <max>(select NULL from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` < <max>(select NULL from `test`.`t2` group by 1))))
select * from t3 where a >= some (select b from t2 group by 1);
a
explain extended select * from t3 where a >= some (select b from t2 group by 1);
......@@ -1531,7 +1531,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= <min>(select NULL from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= <min>(select NULL from `test`.`t2` group by 1))))
select * from t3 where NULL >= any (select b from t2);
a
explain extended select * from t3 where NULL >= any (select b from t2);
......@@ -1539,7 +1539,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= (select min(NULL) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= (select min(NULL) from `test`.`t2`))))
select * from t3 where NULL >= any (select b from t2 group by 1);
a
explain extended select * from t3 where NULL >= any (select b from t2 group by 1);
......@@ -1547,7 +1547,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= <min>(select NULL from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= <min>(select NULL from `test`.`t2` group by 1))))
select * from t3 where NULL >= some (select b from t2);
a
explain extended select * from t3 where NULL >= some (select b from t2);
......@@ -1555,7 +1555,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= (select min(NULL) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= (select min(NULL) from `test`.`t2`))))
select * from t3 where NULL >= some (select b from t2 group by 1);
a
explain extended select * from t3 where NULL >= some (select b from t2 group by 1);
......@@ -1563,7 +1563,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= <min>(select NULL from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= <min>(select NULL from `test`.`t2` group by 1))))
insert into t2 values (2,2), (2,1), (3,3), (3,1);
select * from t3 where a > all (select max(b) from t2 group by a);
a
......@@ -1574,7 +1574,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 4 100.00 Using temporary
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` <= <max>(select max(`test`.`t2`.`b`) from `test`.`t2` group by `test`.`t2`.`a`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` <= <max>(select max(`test`.`t2`.`b`) from `test`.`t2` group by `test`.`t2`.`a`))))
drop table t2, t3;
CREATE TABLE `t1` ( `id` mediumint(9) NOT NULL auto_increment, `taskid` bigint(20) NOT NULL default '0', `dbid` int(11) NOT NULL default '0', `create_date` datetime NOT NULL default '0000-00-00 00:00:00', `last_update` datetime NOT NULL default '0000-00-00 00:00:00', PRIMARY KEY (`id`)) ENGINE=MyISAM CHARSET=latin1 AUTO_INCREMENT=3 ;
INSERT INTO `t1` (`id`, `taskid`, `dbid`, `create_date`,`last_update`) VALUES (1, 1, 15, '2003-09-29 10:31:36', '2003-09-29 10:31:36'), (2, 1, 21, now(), now());
......@@ -1625,7 +1625,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
3 UNION t1 system NULL NULL NULL NULL 1 100.00
NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 select 'e' AS `s1` from `test`.`t1` where <nop>(('f' > <min>(select 'e' from `test`.`t1` union select 'e' from `test`.`t1`)))
Note 1003 select 'e' AS `s1` from `test`.`t1` where <nop>(<in_optimizer>('f',('f' > <min>(select 'e' from `test`.`t1` union select 'e' from `test`.`t1`))))
drop table t1;
CREATE TABLE t1 (number char(11) NOT NULL default '') ENGINE=MyISAM CHARSET=latin1;
INSERT INTO t1 VALUES ('69294728265'),('18621828126'),('89356874041'),('95895001874');
......
mysql-test/suite/pbxt/r/subselect.result
View file @ 7b797fe6
......@@ -270,7 +270,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= (select min(`test`.`t2`.`b`) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= (select min(`test`.`t2`.`b`) from `test`.`t2`))))
select * from t3 where a >= all (select b from t2);
a
7
......@@ -1498,7 +1498,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 0 0.00
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` < (select max(`test`.`t2`.`b`) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` < (select max(`test`.`t2`.`b`) from `test`.`t2`))))
select * from t3 where a >= some (select b from t2);
a
explain extended select * from t3 where a >= some (select b from t2);
......@@ -1506,7 +1506,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 0 0.00
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= (select min(`test`.`t2`.`b`) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= (select min(`test`.`t2`.`b`) from `test`.`t2`))))
select * from t3 where a >= all (select b from t2 group by 1);
a
6
......@@ -1517,7 +1517,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 0 0.00 Using temporary
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` < <max>(select `test`.`t2`.`b` from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` < <max>(select `test`.`t2`.`b` from `test`.`t2` group by 1))))
select * from t3 where a >= some (select b from t2 group by 1);
a
explain extended select * from t3 where a >= some (select b from t2 group by 1);
......@@ -1525,7 +1525,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 0 0.00 Using temporary
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= <min>(select `test`.`t2`.`b` from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= <min>(select `test`.`t2`.`b` from `test`.`t2` group by 1))))
select * from t3 where NULL >= any (select b from t2);
a
explain extended select * from t3 where NULL >= any (select b from t2);
......@@ -1533,7 +1533,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 0 0.00
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= (select min(`test`.`t2`.`b`) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= (select min(`test`.`t2`.`b`) from `test`.`t2`))))
select * from t3 where NULL >= any (select b from t2 group by 1);
a
explain extended select * from t3 where NULL >= any (select b from t2 group by 1);
......@@ -1541,7 +1541,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 0 0.00 Using temporary
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= <min>(select `test`.`t2`.`b` from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= <min>(select `test`.`t2`.`b` from `test`.`t2` group by 1))))
select * from t3 where NULL >= some (select b from t2);
a
explain extended select * from t3 where NULL >= some (select b from t2);
......@@ -1549,7 +1549,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 0 0.00
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= (select min(`test`.`t2`.`b`) from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= (select min(`test`.`t2`.`b`) from `test`.`t2`))))
select * from t3 where NULL >= some (select b from t2 group by 1);
a
explain extended select * from t3 where NULL >= some (select b from t2 group by 1);
......@@ -1557,7 +1557,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00
2 SUBQUERY t2 ALL NULL NULL NULL NULL 0 0.00 Using temporary
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((NULL >= <min>(select `test`.`t2`.`b` from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= <min>(select `test`.`t2`.`b` from `test`.`t2` group by 1))))
insert into t2 values (2,2), (2,1), (3,3), (3,1);
select * from t3 where a > all (select max(b) from t2 group by a);
a
......@@ -1568,7 +1568,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 ALL NULL NULL NULL NULL 4 100.00 Using temporary
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` <= <max>(select max(`test`.`t2`.`b`) from `test`.`t2` group by `test`.`t2`.`a`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` <= <max>(select max(`test`.`t2`.`b`) from `test`.`t2` group by `test`.`t2`.`a`))))
drop table t2, t3;
CREATE TABLE `t1` ( `id` mediumint(9) NOT NULL auto_increment, `taskid` bigint(20) NOT NULL default '0', `dbid` int(11) NOT NULL default '0', `create_date` datetime NOT NULL default '0000-00-00 00:00:00', `last_update` datetime NOT NULL default '0000-00-00 00:00:00', PRIMARY KEY (`id`)) ENGINE=MyISAM CHARSET=latin1 AUTO_INCREMENT=3 ;
INSERT INTO `t1` (`id`, `taskid`, `dbid`, `create_date`,`last_update`) VALUES (1, 1, 15, '2003-09-29 10:31:36', '2003-09-29 10:31:36'), (2, 1, 21, now(), now());
......@@ -1619,7 +1619,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
3 UNION t1 ALL NULL NULL NULL NULL 1 100.00
NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 select `test`.`t1`.`s1` AS `s1` from `test`.`t1` where <nop>(('f' > <min>(select `test`.`t1`.`s1` from `test`.`t1` union select `test`.`t1`.`s1` from `test`.`t1`)))
Note 1003 select `test`.`t1`.`s1` AS `s1` from `test`.`t1` where <nop>(<in_optimizer>('f',('f' > <min>(select `test`.`t1`.`s1` from `test`.`t1` union select `test`.`t1`.`s1` from `test`.`t1`))))
drop table t1;
CREATE TABLE t1 (number char(11) NOT NULL default '') ENGINE=MyISAM CHARSET=latin1;
INSERT INTO t1 VALUES ('69294728265'),('18621828126'),('89356874041'),('95895001874');
......
mysql-test/t/explain.test
View file @ 7b797fe6
......@@ -158,7 +158,10 @@ SELECT @@session.sql_mode INTO @old_sql_mode;
SET SESSION sql_mode='ONLY_FULL_GROUP_BY';
# EXPLAIN EXTENDED (with subselect). used to crash. should give NOTICE.
--error ER_MIX_OF_GROUP_FUNC_AND_FIELDS
# Before moving max/min optimization to optimize phase this statement
# generated error, but as far as original query do not contain aggregate
# function user should not see error
# --error ER_MIX_OF_GROUP_FUNC_AND_FIELDS
EXPLAIN EXTENDED SELECT 1 FROM t1
WHERE f1 > ALL( SELECT t.f1 FROM t1,t1 AS t );
SHOW WARNINGS;
......
sql/item_cmpfunc.cc
View file @ 7b797fe6
......@@ -1798,6 +1798,8 @@ Item *Item_in_optimizer::expr_cache_insert_transformer(uchar *thd_arg)
{
THD *thd= (THD*) thd_arg;
DBUG_ENTER("Item_in_optimizer::expr_cache_insert_transformer");
if (args[1]->type() != Item::SUBSELECT_ITEM)
DBUG_RETURN(this); // MAX/MIN transformed => do nothing
List<Item*> &depends_on= ((Item_subselect *)args[1])->depends_on;
if (expr_cache)
......@@ -1901,7 +1903,15 @@ longlong Item_in_optimizer::val_int()
DBUG_ASSERT(fixed == 1);
cache->store(args[0]);
cache->cache_value();
if (args[1]->type() != Item::SUBSELECT_ITEM)
{
/* MAX/MIN transformed => pass through */
longlong res= args[1]->val_int();
null_value= args[1]->null_value;
return (res);
}
if (cache->null_value)
{
/*
......@@ -2050,24 +2060,35 @@ Item *Item_in_optimizer::transform(Item_transformer transformer, uchar *argument
if ((*args) != new_item)
current_thd->change_item_tree(args, new_item);
/*
Transform the right IN operand which should be an Item_in_subselect or a
subclass of it. The left operand of the IN must be the same as the left
operand of this Item_in_optimizer, so in this case there is no further
transformation, we only make both operands the same.
TODO: is it the way it should be?
*/
DBUG_ASSERT((args[1])->type() == Item::SUBSELECT_ITEM &&
(((Item_subselect*)(args[1]))->substype() ==
Item_subselect::IN_SUBS ||
((Item_subselect*)(args[1]))->substype() ==
Item_subselect::ALL_SUBS ||
((Item_subselect*)(args[1]))->substype() ==
Item_subselect::ANY_SUBS));
Item_in_subselect *in_arg= (Item_in_subselect*)args[1];
in_arg->left_expr= args[0];
if (args[1]->type() != Item::SUBSELECT_ITEM)
{
/* MAX/MIN transformed => pass through */
new_item= args[1]->transform(transformer, argument);
if (!new_item)
return 0;
if (args[1] != new_item)
current_thd->change_item_tree(args, new_item);
}
else
{
/*
Transform the right IN operand which should be an Item_in_subselect or a
subclass of it. The left operand of the IN must be the same as the left
operand of this Item_in_optimizer, so in this case there is no further
transformation, we only make both operands the same.
TODO: is it the way it should be?
*/
DBUG_ASSERT((args[1])->type() == Item::SUBSELECT_ITEM &&
(((Item_subselect*)(args[1]))->substype() ==
Item_subselect::IN_SUBS ||
((Item_subselect*)(args[1]))->substype() ==
Item_subselect::ALL_SUBS ||
((Item_subselect*)(args[1]))->substype() ==
Item_subselect::ANY_SUBS));
Item_in_subselect *in_arg= (Item_in_subselect*)args[1];
in_arg->left_expr= args[0];
}
return (this->*transformer)(argument);
}
......
sql/item_subselect.cc
View file @ 7b797fe6
This diff is collapsed.
sql/item_subselect.h
View file @ 7b797fe6
......@@ -32,7 +32,8 @@ class Cached_item;
class Item_subselect :public Item_result_field
{
bool value_assigned; /* value already assigned to subselect */
bool value_assigned; /* value already assigned to subselect */
bool borrowed_engine; /* the engine was taken from other Item_subselect */
protected:
/* thread handler, will be assigned in fix_fields only */
THD *thd;
......@@ -356,6 +357,9 @@ public:
/* Partial matching substrategies of MATERIALIZATION. */
#define SUBS_PARTIAL_MATCH_ROWID_MERGE 8
#define SUBS_PARTIAL_MATCH_TABLE_SCAN 16
/* ALL/ANY will be transformed with max/min optimization */
#define SUBS_MAXMIN 32
/**
Representation of IN subquery predicates of the form
......@@ -486,6 +490,7 @@ public:
bool test_limit(st_select_lex_unit *unit);
virtual void print(String *str, enum_query_type query_type);
bool fix_fields(THD *thd, Item **ref);
void fix_length_and_dec();
void fix_after_pullout(st_select_lex *new_parent, Item **ref);
void update_used_tables();
bool setup_mat_engine();
......@@ -523,6 +528,8 @@ public:
bool select_transformer(JOIN *join);
void create_comp_func(bool invert) { func= func_creator(invert); }
virtual void print(String *str, enum_query_type query_type);
bool is_maxmin_applicable(JOIN *join);
bool transform_allany(JOIN *join);
};
......@@ -594,7 +601,8 @@ public:
static table_map calc_const_tables(TABLE_LIST *);
virtual void print(String *str, enum_query_type query_type)= 0;
virtual bool change_result(Item_subselect *si,
select_result_interceptor *result)= 0;
select_result_interceptor *result,
bool temp= FALSE)= 0;
virtual bool no_tables()= 0;
virtual bool is_executed() const { return FALSE; }
/* Check if subquery produced any rows during last query execution */
......@@ -626,7 +634,9 @@ public:
void exclude();
table_map upper_select_const_tables();
virtual void print (String *str, enum_query_type query_type);
bool change_result(Item_subselect *si, select_result_interceptor *result);
bool change_result(Item_subselect *si,
select_result_interceptor *result,
bool temp);
bool no_tables();
bool may_be_null();
bool is_executed() const { return executed; }
......@@ -655,7 +665,9 @@ public:
void exclude();
table_map upper_select_const_tables();
virtual void print (String *str, enum_query_type query_type);
bool change_result(Item_subselect *si, select_result_interceptor *result);
bool change_result(Item_subselect *si,
select_result_interceptor *result,
bool temp= FALSE);
bool no_tables();
bool is_executed() const;
bool no_rows();
......@@ -707,11 +719,13 @@ public:
void fix_length_and_dec(Item_cache** row);
int exec();
uint cols() { return 1; }
uint8 uncacheable() { return UNCACHEABLE_DEPENDENT; }
uint8 uncacheable() { return UNCACHEABLE_DEPENDENT_INJECTED; }
void exclude();
table_map upper_select_const_tables() { return 0; }
virtual void print (String *str, enum_query_type query_type);
bool change_result(Item_subselect *si, select_result_interceptor *result);
bool change_result(Item_subselect *si,
select_result_interceptor *result,
bool temp= FALSE);
bool no_tables();
int index_lookup(); /* TIMOUR: this method needs refactoring. */
int scan_table();
......@@ -879,7 +893,9 @@ public:
void fix_length_and_dec(Item_cache** row);//=>base class
void exclude(); //=>base class
//=>base class
bool change_result(Item_subselect *si, select_result_interceptor *result);
bool change_result(Item_subselect *si,
select_result_interceptor *result,
bool temp= FALSE);
bool no_tables();//=>base class
};
......@@ -1106,7 +1122,9 @@ public:
uint8 uncacheable() { return UNCACHEABLE_DEPENDENT; }
void exclude() {}
table_map upper_select_const_tables() { return 0; }
bool change_result(Item_subselect*, select_result_interceptor*)
bool change_result(Item_subselect*,
select_result_interceptor*,
bool temp= FALSE)
{ DBUG_ASSERT(FALSE); return false; }
bool no_tables() { return false; }
bool no_rows()
......
sql/mysql_priv.h
View file @ 7b797fe6
......@@ -679,14 +679,18 @@ enabled by default, add OPTIMIZER_SWITCH_MATERIALIZATION
#define CONTEXT_ANALYSIS_ONLY_DERIVED 4
// uncachable cause
#define UNCACHEABLE_DEPENDENT 1
#define UNCACHEABLE_RAND 2
#define UNCACHEABLE_SIDEEFFECT 4
#define UNCACHEABLE_DEPENDENT_GENERATED 1
#define UNCACHEABLE_RAND 2
#define UNCACHEABLE_SIDEEFFECT 4
/// forcing to save JOIN for explain
#define UNCACHEABLE_EXPLAIN 8
#define UNCACHEABLE_EXPLAIN 8
/* For uncorrelated SELECT in an UNION with some correlated SELECTs */
#define UNCACHEABLE_UNITED 16
#define UNCACHEABLE_CHECKOPTION 32
#define UNCACHEABLE_UNITED 16
#define UNCACHEABLE_CHECKOPTION 32
#define UNCACHEABLE_DEPENDENT_INJECTED 64
#define UNCACHEABLE_DEPENDENT (UNCACHEABLE_DEPENDENT_GENERATED | \
UNCACHEABLE_DEPENDENT_INJECTED)
/* Used to check GROUP BY list in the MODE_ONLY_FULL_GROUP_BY mode */
#define UNDEF_POS (-1)
......
sql/opt_subselect.cc
View file @ 7b797fe6
......@@ -93,8 +93,19 @@ int check_and_do_in_subquery_rewrites(JOIN *join)
(subselect= parent_unit->item)) // (2)
{
Item_in_subselect *in_subs= NULL;
if (subselect->substype() == Item_subselect::IN_SUBS)
in_subs= (Item_in_subselect*)subselect;
Item_allany_subselect *allany_subs= NULL;
switch (subselect->substype()) {
case Item_subselect::IN_SUBS:
in_subs= (Item_in_subselect *)subselect;
break;
case Item_subselect::ALL_SUBS:
case Item_subselect::ANY_SUBS:
allany_subs= (Item_allany_subselect *)subselect;
break;
default:
break;
}
/* Resolve expressions and perform semantic analysis for IN query */
if (in_subs != NULL)
......@@ -257,12 +268,18 @@ int check_and_do_in_subquery_rewrites(JOIN *join)
}
}
/* Check if max/min optimization applicable */
if (allany_subs)
allany_subs->in_strategy|= (allany_subs->is_maxmin_applicable(join) ?
SUBS_MAXMIN :
SUBS_IN_TO_EXISTS);
/*
Transform each subquery predicate according to its overloaded
transformer.
*/
if (subselect->select_transformer(join))
DBUG_RETURN(-11);
DBUG_RETURN(-1);
}
}
DBUG_RETURN(0);
......@@ -369,6 +386,21 @@ bool subquery_types_allow_materialization(Item_in_subselect *in_subs)
}
/**
Apply max min optimization of all/any subselect
*/
bool convert_max_min_subquery(JOIN *join)
{
DBUG_ENTER("convert_max_min_subquery");
Item_subselect *subselect= join->unit->item;
if (!subselect || (subselect->substype() != Item_subselect::ALL_SUBS &&
subselect->substype() != Item_subselect::ANY_SUBS))
DBUG_RETURN(0);
DBUG_RETURN(((Item_allany_subselect *) subselect)->transform_allany(join));
}
/*
Convert semi-join subquery predicates into semi-join join nests
......@@ -3843,8 +3875,8 @@ bool JOIN::choose_subquery_plan(table_map join_tables)
restore_query_plan(&save_qep);
/* TODO: should we set/unset this flag for both select_lex and its unit? */
in_subs->unit->uncacheable&= ~UNCACHEABLE_DEPENDENT;
select_lex->uncacheable&= ~UNCACHEABLE_DEPENDENT;
in_subs->unit->uncacheable&= ~UNCACHEABLE_DEPENDENT_INJECTED;
select_lex->uncacheable&= ~UNCACHEABLE_DEPENDENT_INJECTED;
/*
Reset the "LIMIT 1" set in Item_exists_subselect::fix_length_and_dec.
......@@ -3884,6 +3916,9 @@ bool JOIN::choose_subquery_plan(table_map join_tables)
if (in_subs->inject_in_to_exists_cond(this))
return TRUE;
in_subs->unit->uncacheable|= UNCACHEABLE_DEPENDENT_INJECTED;
select_lex->uncacheable|= UNCACHEABLE_DEPENDENT_INJECTED;
select_limit= 1;
}
else
DBUG_ASSERT(FALSE);
......
sql/opt_subselect.h
View file @ 7b797fe6
......@@ -6,6 +6,7 @@
int check_and_do_in_subquery_rewrites(JOIN *join);
bool convert_join_subqueries_to_semijoins(JOIN *join);
bool convert_max_min_subquery(JOIN *join);
int pull_out_semijoin_tables(JOIN *join);
bool optimize_semijoin_nests(JOIN *join, table_map all_table_map);
......
sql/sql_class.h
View file @ 7b797fe6
......@@ -2727,7 +2727,12 @@ public:
class select_result_interceptor: public select_result
{
public:
select_result_interceptor() {} /* Remove gcc warning */
select_result_interceptor()
{
DBUG_ENTER("select_result_interceptor::select_result_interceptor");
DBUG_PRINT("enter", ("this 0x%lx", (ulong) this));
DBUG_VOID_RETURN;
} /* Remove gcc warning */
uint field_count(List<Item> &fields) const { return 0; }
bool send_fields(List<Item> &fields, uint flag) { return FALSE; }
};
......
sql/sql_lex.cc
View file @ 7b797fe6
......@@ -1942,18 +1942,19 @@ bool st_select_lex::mark_as_dependent(THD *thd, st_select_lex *last, Item *depen
SELECT_LEX *s= this;
do
{
if (!(s->uncacheable & UNCACHEABLE_DEPENDENT))
if (!(s->uncacheable & UNCACHEABLE_DEPENDENT_GENERATED))
{
// Select is dependent of outer select
s->uncacheable= (s->uncacheable & ~UNCACHEABLE_UNITED) |
UNCACHEABLE_DEPENDENT;
UNCACHEABLE_DEPENDENT_GENERATED;
SELECT_LEX_UNIT *munit= s->master_unit();
munit->uncacheable= (munit->uncacheable & ~UNCACHEABLE_UNITED) |
UNCACHEABLE_DEPENDENT;
UNCACHEABLE_DEPENDENT_GENERATED;
for (SELECT_LEX *sl= munit->first_select(); sl ; sl= sl->next_select())
{
if (sl != s &&
!(sl->uncacheable & (UNCACHEABLE_DEPENDENT | UNCACHEABLE_UNITED)))
!(sl->uncacheable & (UNCACHEABLE_DEPENDENT_GENERATED |
UNCACHEABLE_UNITED)))
sl->uncacheable|= UNCACHEABLE_UNITED;
}
}
......@@ -2178,17 +2179,6 @@ void st_select_lex::print_limit(THD *thd,
subs_type == Item_subselect::IN_SUBS ||
subs_type == Item_subselect::ALL_SUBS)
{
DBUG_ASSERT(!item->fixed ||
/*
If not using materialization both:
select_limit == 1, and there should be no offset_limit.
*/
(((subs_type == Item_subselect::IN_SUBS) &&
((Item_in_subselect*)item)->in_strategy &
SUBS_MATERIALIZATION) ?
TRUE :
(select_limit->val_int() == 1LL) &&
offset_limit == 0));
return;
}
}
......
sql/sql_lex.h
View file @ 7b797fe6
......@@ -417,7 +417,8 @@ public:
/*
result of this query can't be cached, bit field, can be :
UNCACHEABLE_DEPENDENT
UNCACHEABLE_DEPENDENT_GENERATED
UNCACHEABLE_DEPENDENT_INJECTED
UNCACHEABLE_RAND
UNCACHEABLE_SIDEEFFECT
UNCACHEABLE_EXPLAIN
......
sql/sql_select.cc
View file @ 7b797fe6
......@@ -736,11 +736,28 @@ JOIN::prepare(Item ***rref_pointer_array,
if (!procedure && result && result->prepare(fields_list, unit_arg))
goto err; /* purecov: inspected */
unit= unit_arg;
if (prepare_stage2())
goto err;
DBUG_RETURN(0); // All OK
err:
delete procedure; /* purecov: inspected */
procedure= 0;
DBUG_RETURN(-1); /* purecov: inspected */
}
bool JOIN::prepare_stage2()
{
bool res= TRUE;
DBUG_ENTER("JOIN::prepare_stage2");
/* Init join struct */
count_field_types(select_lex, &tmp_table_param, all_fields, 0);
ref_pointer_array_size= all_fields.elements*sizeof(Item*);
this->group= group_list != 0;
unit= unit_arg;
if (tmp_table_param.sum_func_count && !group_list)
implicit_grouping= TRUE;
......@@ -757,12 +774,9 @@ JOIN::prepare(Item ***rref_pointer_array,
if (alloc_func_list())
goto err;
DBUG_RETURN(0); // All OK
res= FALSE;
err:
delete procedure; /* purecov: inspected */
procedure= 0;
DBUG_RETURN(-1); /* purecov: inspected */
DBUG_RETURN(res); /* purecov: inspected */
}
......@@ -795,7 +809,8 @@ JOIN::optimize()
set_allowed_join_cache_types();
/* dump_TABLE_LIST_graph(select_lex, select_lex->leaf_tables); */
if (convert_join_subqueries_to_semijoins(this))
if (convert_max_min_subquery(this) ||
convert_join_subqueries_to_semijoins(this))
DBUG_RETURN(1); /* purecov: inspected */
/* dump_TABLE_LIST_graph(select_lex, select_lex->leaf_tables); */
......@@ -8599,6 +8614,10 @@ bool error_if_full_join(JOIN *join)
void JOIN_TAB::cleanup()
{
DBUG_ENTER("JOIN_TAB::cleanup");
DBUG_PRINT("enter", ("table %s.%s",
(table ? table->s->db.str : "?"),
(table ? table->s->table_name.str : "?")));
delete select;
select= 0;
delete quick;
......@@ -8620,6 +8639,7 @@ void JOIN_TAB::cleanup()
table->reginfo.join_tab= 0;
}
end_read_record(&read_record);
DBUG_VOID_RETURN;
}
......@@ -8740,7 +8760,8 @@ void JOIN::join_free()
Optimization: if not EXPLAIN and we are done with the JOIN,
free all tables.
*/
bool full= (!select_lex->uncacheable && !thd->lex->describe);
bool full= (!(select_lex->uncacheable) &&
!thd->lex->describe);
bool can_unlock= full;
DBUG_ENTER("JOIN::join_free");
......@@ -8804,6 +8825,7 @@ void JOIN::join_free()
void JOIN::cleanup(bool full)
{
DBUG_ENTER("JOIN::cleanup");
DBUG_PRINT("enter", ("full %u", (uint) full));
if (table)
{
......@@ -8829,7 +8851,11 @@ void JOIN::cleanup(bool full)
for (tab= join_tab, end= tab+tables; tab != end; tab++)
{
if (tab->table)
{
DBUG_PRINT("info", ("close index: %s.%s", tab->table->s->db.str,
tab->table->s->table_name.str));
tab->table->file->ha_index_or_rnd_end();
}
}
}
}
......@@ -20304,6 +20330,7 @@ void st_select_lex::print(THD *thd, String *str, enum_query_type query_type)
change select_result object of JOIN.
@param res new select_result object
@param temp temporary assignment
@retval
FALSE OK
......
sql/sql_select.h
View file @ 7b797fe6
......@@ -999,6 +999,7 @@ public:
COND *conds, uint og_num, ORDER *order, ORDER *group,
Item *having, ORDER *proc_param, SELECT_LEX *select,
SELECT_LEX_UNIT *unit);
bool prepare_stage2();
int optimize();
int reinit();
int init_execution();
......
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