diff options
Diffstat (limited to 'mysql-test/r/selectivity_innodb.result')
| -rw-r--r-- | mysql-test/r/selectivity_innodb.result | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/mysql-test/r/selectivity_innodb.result b/mysql-test/r/selectivity_innodb.result index a348836783e..104b465b5a4 100644 --- a/mysql-test/r/selectivity_innodb.result +++ b/mysql-test/r/selectivity_innodb.result @@ -1366,6 +1366,37 @@ id select_type table type possible_keys key key_len ref rows filtered Extra Warnings: Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where (`test`.`t1`.`a` = <cache>(-(1))) drop table t0, t1; +# +# MDEV-4362: Selectivity estimates for IN (...) do not depend on whether the values are in range +# +create table t1 (col1 int); +set @a=-1; +create table t2 (a int) select (@a:=@a+1) as a from information_schema.session_variables A limit 100; +insert into t1 select A.a from t2 A, t2 B where A.a < 100 and B.a < 100; +select min(col1), max(col1), count(*) from t1; +min(col1) max(col1) count(*) +0 99 10000 +set histogram_size=100; +analyze table t1 persistent for all; +Table Op Msg_type Msg_text +test.t1 analyze status OK +explain extended select * from t1 where col1 in (1,2,3); +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 ALL NULL NULL NULL NULL 10000 3.37 Using where +Warnings: +Note 1003 select `test`.`t1`.`col1` AS `col1` from `test`.`t1` where (`test`.`t1`.`col1` in (1,2,3)) +# Must not cause fp division by zero, or produce nonsense numbers: +explain extended select * from t1 where col1 in (-1,-2,-3); +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 ALL NULL NULL NULL NULL 10000 3.00 Using where +Warnings: +Note 1003 select `test`.`t1`.`col1` AS `col1` from `test`.`t1` where (`test`.`t1`.`col1` in (<cache>(-(1)),<cache>(-(2)),<cache>(-(3)))) +explain extended select * from t1 where col1<=-1; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 ALL NULL NULL NULL NULL 10000 1.00 Using where +Warnings: +Note 1003 select `test`.`t1`.`col1` AS `col1` from `test`.`t1` where (`test`.`t1`.`col1` <= <cache>(-(1))) +drop table t1, t2; set histogram_type=@save_histogram_type; set histogram_size=@save_histogram_size; set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; |