diff options
Diffstat (limited to 'mysql-test/r/distinct.result')
| -rw-r--r-- | mysql-test/r/distinct.result | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/mysql-test/r/distinct.result b/mysql-test/r/distinct.result index 926dc17d0c4..dd6948a1e36 100644 --- a/mysql-test/r/distinct.result +++ b/mysql-test/r/distinct.result @@ -174,8 +174,8 @@ INSERT INTO t3 VALUES (1,'1'),(2,'2'),(1,'1'),(2,'2'); explain SELECT distinct t3.a FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 4 Using where; Using temporary -1 SIMPLE t3 ref a a 5 test.t1.b 2 Using index -1 SIMPLE t2 index a a 4 NULL 5 Using where; Using index; Using join buffer (flat, BNL join) +1 SIMPLE t3 hash_index a #hash#a:a 5:5 test.t1.b 6 Using index; Using join buffer (flat, BNLH join) +1 SIMPLE t2 index a a 4 NULL 5 Using where; Using index; Using join buffer (incremental, BNL join) SELECT distinct t3.a FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a; a 1 @@ -190,7 +190,7 @@ insert into t3 select * from t4; explain select distinct t1.a from t1,t3 where t1.a=t3.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 index PRIMARY PRIMARY 4 NULL 4 Using index; Using temporary -1 SIMPLE t3 ref a a 5 test.t1.a 11 Using index; Distinct +1 SIMPLE t3 hash_index a #hash#a:a 5:5 test.t1.a 204 Using index; Using join buffer (flat, BNLH join) select distinct t1.a from t1,t3 where t1.a=t3.a; a 1 @@ -523,7 +523,7 @@ EXPLAIN SELECT DISTINCT t1_1.a, t1_1.b FROM t1 t1_1, t1 t1_2 WHERE t1_1.a = t1_2.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1_1 ALL PRIMARY NULL NULL NULL 3 Using temporary -1 SIMPLE t1_2 eq_ref PRIMARY PRIMARY 4 test.t1_1.a 1 Using index; Distinct +1 SIMPLE t1_2 hash_index PRIMARY #hash#PRIMARY:PRIMARY 4:4 test.t1_1.a 3 Using index; Using join buffer (flat, BNLH join) EXPLAIN SELECT a FROM t1 GROUP BY a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 index NULL PRIMARY 4 NULL 3 Using index @@ -916,8 +916,8 @@ SELECT STRAIGHT_JOIN DISTINCT t1.id FROM t1, v1, t2 WHERE v1.id = t2.i AND t1.i1 = v1.i1 AND t2.i != 3; id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 96 100.00 Using where; Using temporary -1 PRIMARY <derived2> ref key0 key0 5 test.t1.i1 9 100.00 Using where -1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (flat, BNL join) +1 PRIMARY <derived2> hash_ALL key0 #hash#key0 5 test.t1.i1 96 10.00 Using where; Using join buffer (flat, BNLH join) +1 PRIMARY t2 hash_ALL NULL #hash#$hj 5 v1.id 2 100.00 Using where; Using join buffer (incremental, BNLH join) 2 DERIVED t1 ALL NULL NULL NULL NULL 96 100.00 Using where Warnings: Note 1003 /* select#1 */ select straight_join distinct `test`.`t1`.`id` AS `id` from `test`.`t1` join `test`.`v1` join `test`.`t2` where `test`.`t2`.`i` = `v1`.`id` and `v1`.`i1` = `test`.`t1`.`i1` and `v1`.`id` <> 3 |