diff options
Diffstat (limited to 'mysql-test/r/group_by.result')
| -rw-r--r-- | mysql-test/r/group_by.result | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/mysql-test/r/group_by.result b/mysql-test/r/group_by.result index 1983d1cc784..085003c7790 100644 --- a/mysql-test/r/group_by.result +++ b/mysql-test/r/group_by.result @@ -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 @@ -2161,6 +2202,51 @@ f1 MIN(f2) MAX(f2) DROP TABLE t1; #End of test#49771 # +# Test of bug in GROUP_CONCAT with ROLLUP +# +CREATE TABLE t1 ( b VARCHAR(8) NOT NULL, a INT NOT NULL ) ENGINE=MyISAM; +INSERT INTO t1 (a,b) VALUES (1,'c'),(2,'v'); +CREATE TABLE t2 ( c VARCHAR(8), d INT, KEY (c, d) ) ENGINE=MyISAM; +INSERT INTO t2 VALUES ('v',6),('c',4),('v',3); +SELECT b, GROUP_CONCAT( a, b ORDER BY a, b ) +FROM t1 JOIN t2 ON c = b GROUP BY b; +b GROUP_CONCAT( a, b ORDER BY a, b ) +c 1c +v 2v,2v +SELECT b, GROUP_CONCAT( a, b ORDER BY a, b ) +FROM t1 JOIN t2 ON c = b GROUP BY b WITH ROLLUP; +b GROUP_CONCAT( a, b ORDER BY a, b ) +c 1c +v 2v,2v +NULL 1c,2v,2v +DROP TABLE t1,t2; +# +# Test of MDEV-4002 +# +CREATE TABLE t1 ( +pk INT NOT NULL PRIMARY KEY, +d1 DOUBLE, +d2 DOUBLE, +i INT NOT NULL DEFAULT '0', +KEY (i) +) ENGINE=InnoDB; +INSERT INTO t1 VALUES (1,1.0,1.1,1),(2,2.0,2.2,2); +PREPARE stmt FROM " +SELECT DISTINCT i, GROUP_CONCAT( d1, d2 ORDER BY d1, d2 ) +FROM t1 a1 NATURAL JOIN t1 a2 GROUP BY i WITH ROLLUP +"; +EXECUTE stmt; +i GROUP_CONCAT( d1, d2 ORDER BY d1, d2 ) +1 11.1 +2 22.2 +NULL 11.1,22.2 +EXECUTE stmt; +i GROUP_CONCAT( d1, d2 ORDER BY d1, d2 ) +1 11.1 +2 22.2 +NULL 11.1,22.2 +DROP TABLE t1; +# # Bug #58782 # Missing rows with SELECT .. WHERE .. IN subquery # with full GROUP BY and no aggr |