diff options
Diffstat (limited to 'mysql-test/r/group_by.result')
| -rw-r--r-- | mysql-test/r/group_by.result | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/mysql-test/r/group_by.result b/mysql-test/r/group_by.result index d4ffbe43a91..053c2901509 100644 --- a/mysql-test/r/group_by.result +++ b/mysql-test/r/group_by.result @@ -1064,3 +1064,52 @@ select t1.f1,t.* from t1, t1 t group by 1; ERROR 42000: 'test.t.f1' isn't in GROUP BY drop table t1; SET SQL_MODE = ''; +CREATE TABLE t1( +a INT, +b INT NOT NULL, +c INT NOT NULL, +d INT, +UNIQUE KEY (c,b) +); +INSERT INTO t1 VALUES (1,1,1,50), (1,2,3,40), (2,1,3,4); +EXPLAIN SELECT c,b,d FROM t1 GROUP BY c,b,d; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using filesort +SELECT c,b,d FROM t1 GROUP BY c,b,d; +c b d +1 1 50 +3 1 4 +3 2 40 +EXPLAIN SELECT c,b,d FROM t1 GROUP BY c,b,d ORDER BY NULL; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 +SELECT c,b,d FROM t1 GROUP BY c,b,d ORDER BY NULL; +c b d +1 1 50 +3 2 40 +3 1 4 +EXPLAIN SELECT c,b,d FROM t1 ORDER BY c,b,d; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using filesort +SELECT c,b,d FROM t1 ORDER BY c,b,d; +c b d +1 1 50 +3 1 4 +3 2 40 +EXPLAIN SELECT c,b,d FROM t1 GROUP BY c,b; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using filesort +SELECT c,b,d FROM t1 GROUP BY c,b; +c b d +1 1 50 +3 1 4 +3 2 40 +EXPLAIN SELECT c,b FROM t1 GROUP BY c,b; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 index NULL c 8 NULL 3 Using index +SELECT c,b FROM t1 GROUP BY c,b; +c b +1 1 +3 1 +3 2 +DROP TABLE t1; |