explain extended select * from t3 where a >= all (select b from t2 group by 1);
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; Using filesort
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)))
select * from t3 where a >= some (select b from t2 group by 1);
...
...
@@ -1523,7 +1523,7 @@ a
explain extended select * from t3 where a >= some (select b from t2 group by 1);
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; Using filesort
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)))
select * from t3 where NULL >= any (select b from t2);
...
...
@@ -1539,7 +1539,7 @@ a
explain extended select * from t3 where NULL >= any (select b from t2 group by 1);
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; Using filesort
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)))
select * from t3 where NULL >= some (select b from t2);
...
...
@@ -1555,7 +1555,7 @@ a
explain extended select * from t3 where NULL >= some (select b from t2 group by 1);
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; Using filesort
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)))
insert into t2 values (2,2), (2,1), (3,3), (3,1);
...
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@@ -1566,7 +1566,7 @@ a
explain extended select * from t3 where a > all (select max(b) from t2 group by a);
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; Using filesort
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`)))
drop table t2, t3;
...
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@@ -2835,7 +2835,7 @@ Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `tes
explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary; Using filesort
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary
Warnings:
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1`
DROP TABLE t1,t2;
...
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@@ -3421,7 +3421,7 @@ EXPLAIN
SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 9 Using where
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary; Using filesort
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary
ALTER TABLE t1 ADD INDEX(a);
SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
