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5.3 merge

This commit is contained in:
Sergei Golubchik
2013-01-15 19:07:46 +01:00
115 changed files with 2135 additions and 1129 deletions

View File

@@ -2130,6 +2130,47 @@ the value below *must* be 1
show status like 'Created_tmp_disk_tables';
Variable_name Value
Created_tmp_disk_tables 1
#
# Bug #1002146: Unneeded filesort if usage of join buffer is not allowed
# (bug mdev-645)
#
CREATE TABLE t1 (pk int PRIMARY KEY, a int, INDEX idx(a));
INSERT INTO t1 VALUES (3,2), (2,3), (5,3), (6,4);
CREATE TABLE t2 (pk int PRIMARY KEY, a int, INDEX idx(a));
INSERT INTO t2 VALUES (9,0), (10,3), (6,4), (1,6), (3,100), (5,200);
set join_cache_level=0;
EXPLAIN
SELECT t2.a FROM t2 STRAIGHT_JOIN t1 ON t2.a <> 0 WHERE t2.a <> 6
GROUP BY t2.a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 range idx idx 5 NULL 5 Using where; Using index
1 SIMPLE t1 index NULL PRIMARY 4 NULL 4 Using index
SELECT t2.a FROM t2 STRAIGHT_JOIN t1 ON t2.a <> 0 WHERE t2.a <> 6
GROUP BY t2.a;
a
3
4
100
200
set join_cache_level=default;
set @save_optimizer_switch=@@optimizer_switch;
set optimizer_switch='outer_join_with_cache=off';
EXPLAIN
SELECT t2.a FROM t2 LEFT JOIN t1 ON t2.a <> 0 WHERE t2.a <> 6
GROUP BY t2.a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 range idx idx 5 NULL 5 Using where; Using index
1 SIMPLE t1 index NULL PRIMARY 4 NULL 4 Using where; Using index
SELECT t2.a FROM t2 LEFT JOIN t1 ON t2.a <> 0 WHERE t2.a <> 6
GROUP BY t2.a;
a
0
3
4
100
200
set optimizer_switch=@save_optimizer_switch;
DROP TABLE t1,t2;
# End of 5.3 tests
#
# Bug#49771: Incorrect MIN (date) when minimum value is 0000-00-00