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5.5 merge

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This commit is contained in:
Sergei Golubchik
2013-07-17 21:24:29 +02:00
parent 2f6a2494a5 c7973615e7
commit 97e640b9ae
1704 changed files with 7802 additions and 3315 deletions
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44
mysql-test/r/subselect_innodb.result
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@ -450,4 +450,48 @@ a d2
select distinct (1 + (select 1 from `t2` where `a`)) `d2` from `t1`;
d2
drop table t1,t2;
#
# MDEV-4042: Assertion `table->key_read == 0' fails in close_thread_table on EXPLAIN with GROUP BY and HAVING in EXISTS SQ,
# MDEV-4536: ...sql/sql_base.cc:1598: bool close_thread_table(THD*, TABLE**): Assertion `table->key_read == 0' failed.
CREATE TABLE t1 (a INT) ENGINE=InnoDB;
CREATE TABLE t2 (b INT PRIMARY KEY, c INT) ENGINE=InnoDB;
CREATE TABLE t3 (d INT) ENGINE=InnoDB;
EXPLAIN
SELECT * FROM t1 WHERE EXISTS ( SELECT b FROM t2, t3 GROUP BY b HAVING b != 3 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
2 SUBQUERY t2 index NULL PRIMARY 4 NULL 1 Using index; Using temporary; Using filesort
2 SUBQUERY t3 ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join)
SELECT * FROM t1 WHERE EXISTS ( SELECT b FROM t2, t3 GROUP BY b HAVING b != 3 );
a
DROP TABLE t1,t2,t3;
CREATE TABLE t1 (
pk int auto_increment primary key,
col_int_key int(11),
key col_int_key (col_int_key),col_varchar_key varchar(128),
key (col_varchar_key)
) engine=innodb;
EXPLAIN
SELECT 1 FROM t1 AS alias1
WHERE EXISTS ( SELECT SQ2_alias1 . col_int_key AS SQ2_field1
FROM ( t1 AS SQ2_alias1 RIGHT OUTER JOIN
t1 AS SQ2_alias2 ON (SQ2_alias2 . col_int_key = SQ2_alias1 . col_int_key )
)
GROUP BY SQ2_field1
HAVING SQ2_alias1 . col_int_key >= 7
);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
2 SUBQUERY SQ2_alias2 index NULL col_int_key 5 NULL 1 Using index; Using temporary; Using filesort
2 SUBQUERY SQ2_alias1 ref col_int_key col_int_key 5 test.SQ2_alias2.col_int_key 1 Using where; Using index
SELECT 1 FROM t1 AS alias1
WHERE EXISTS ( SELECT SQ2_alias1 . col_int_key AS SQ2_field1
FROM ( t1 AS SQ2_alias1 RIGHT OUTER JOIN
t1 AS SQ2_alias2 ON (SQ2_alias2 . col_int_key = SQ2_alias1 . col_int_key )
)
GROUP BY SQ2_field1
HAVING SQ2_alias1 . col_int_key >= 7
);
1
drop table t1;
set optimizer_switch=@subselect_innodb_tmp;