diff options
Diffstat (limited to 'mysql-test/main/selectivity.result')
| -rw-r--r-- | mysql-test/main/selectivity.result | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/mysql-test/main/selectivity.result b/mysql-test/main/selectivity.result index 2cd3cbdd8eb..749c74f431b 100644 --- a/mysql-test/main/selectivity.result +++ b/mysql-test/main/selectivity.result @@ -1641,8 +1641,8 @@ drop function f1; # create table t1 (a int, b int, key (b), key (a)); insert into t1 -select (rand(1)*1000)/10, (rand(1001)*1000)/50 from seq_1_to_1000; -analyze table t1 ; +select (rand(1)*1000)/10, (rand(1001)*1000)/20 from seq_1_to_1000; +analyze table t1 persistent for all; Table Op Msg_type Msg_text test.t1 analyze status Engine-independent statistics collected test.t1 analyze status Table is already up to date @@ -1654,14 +1654,14 @@ Warnings: Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` USE INDEX () where `test`.`t1`.`a` in (17,51,5) explain extended select * from t1 use index () where b=2; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 1000 5.47 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 1000 2.34 Using where Warnings: Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` USE INDEX () where `test`.`t1`.`b` = 2 # Now, the equality is used for ref access, while the range condition # gives selectivity data explain extended select * from t1 where a in (17,51,5) and b=2; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ref|filter b,a b|a 5|5 const 58 (3%) 2.90 Using where; Using rowid filter +1 SIMPLE t1 ref|filter b,a b|a 5|5 const 24 (3%) 2.90 Using where; Using rowid filter Warnings: Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where `test`.`t1`.`b` = 2 and `test`.`t1`.`a` in (17,51,5) drop table t1; @@ -1817,6 +1817,12 @@ create table t1 (id int, a int, PRIMARY KEY(id), key(a)); insert into t1 select seq,seq from seq_1_to_100; create table t2 (id int, a int, b int, PRIMARY KEY(id), key(a), key(b)); insert into t2 select seq,seq,seq from seq_1_to_100; +analyze table t1,t2 persistent for all; +Table Op Msg_type Msg_text +test.t1 analyze status Engine-independent statistics collected +test.t1 analyze status Table is already up to date +test.t2 analyze status Engine-independent statistics collected +test.t2 analyze status Table is already up to date set optimizer_switch='exists_to_in=off'; set optimizer_use_condition_selectivity=2; SELECT * FROM t1 @@ -1850,7 +1856,7 @@ WHERE A.a=t1.a AND t2.b < 20); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 100 Using where 2 DEPENDENT SUBQUERY A ref PRIMARY,a a 5 test.t1.a 1 -2 DEPENDENT SUBQUERY t2 ref|filter a,b a|b 5|5 test.A.id 1 (10%) Using where; Using rowid filter +2 DEPENDENT SUBQUERY t2 ref a,b a 5 test.A.id 1 Using where EXPLAIN SELECT * FROM t1 A, t1 B WHERE A.a = B.a and A.id = 65; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE A const PRIMARY,a PRIMARY 4 const 1 @@ -1862,7 +1868,7 @@ WHERE A.a=t1.a AND t2.b < 20); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 100 Using where 2 DEPENDENT SUBQUERY A ref PRIMARY,a a 5 test.t1.a 1 -2 DEPENDENT SUBQUERY t2 ref|filter a,b a|b 5|5 test.A.id 1 (10%) Using where; Using rowid filter +2 DEPENDENT SUBQUERY t2 ref a,b a 5 test.A.id 1 Using where set optimizer_switch= @save_optimizer_switch; set optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity; drop table t1,t2; |