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| author | Sergei Golubchik <serg@mariadb.org> | 2021-02-22 21:25:16 +0100 |
|---|---|---|
| committer | Sergei Golubchik <serg@mariadb.org> | 2021-02-22 22:42:27 +0100 |
| commit | 0ab1e3914c78e4a82a8e4502b58b20e5598727ab (patch) | |
| tree | 403a06406bd6998e588cb51a0f058cfa668e96da /mysql-test/main/selectivity.result | |
| parent | ca126d96f5175ba03c32ea79774075d6d42c98cb (diff) | |
| parent | 3c021485c913828b83510967c1ff277011a9d59a (diff) | |
| download | mariadb-git-0ab1e3914c78e4a82a8e4502b58b20e5598727ab.tar.gz | |
Merge branch '10.2' into 10.3
Diffstat (limited to 'mysql-test/main/selectivity.result')
| -rw-r--r-- | mysql-test/main/selectivity.result | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/mysql-test/main/selectivity.result b/mysql-test/main/selectivity.result index b446c3591b9..4a39726fb91 100644 --- a/mysql-test/main/selectivity.result +++ b/mysql-test/main/selectivity.result @@ -1887,4 +1887,62 @@ a b set optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity; drop table t1; # End of 10.1 tests +# +# MDEV-22583: Selectivity for BIT columns in filtered column for EXPLAIN is incorrect +# +SET optimizer_use_condition_selectivity=4; +SET histogram_size=255; +CREATE TABLE t1 (a BIT(32), b INT); +INSERT INTO t1 VALUES (80, 80), (81, 81), (82, 82); +ANALYZE TABLE t1 PERSISTENT FOR ALL; +Table Op Msg_type Msg_text +test.t1 analyze status Engine-independent statistics collected +test.t1 analyze status OK +EXPLAIN EXTENDED SELECT * from t1 where t1.a >= 81; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 66.41 Using where +Warnings: +Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where `test`.`t1`.`a` >= 81 +SELECT HEX(a), b from t1 where t1.a >= 81; +HEX(a) b +51 81 +52 82 +set optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity; +set histogram_size=@save_histogram_size; +DROP TABLE t1; +# +# MDEV-19474: Histogram statistics are used even with optimizer_use_condition_selectivity=3 +# +CREATE TABLE t1(a int); +INSERT INTO t1 values (1),(2),(2),(3),(4); +SET optimizer_use_condition_selectivity=4; +SET histogram_size= 255; +set use_stat_tables='preferably'; +ANALYZE TABLE t1 PERSISTENT FOR ALL; +Table Op Msg_type Msg_text +test.t1 analyze status Engine-independent statistics collected +test.t1 analyze status OK +EXPLAIN EXTENDED SELECT * FROM t1 WHERE a=2; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 ALL NULL NULL NULL NULL 5 39.84 Using where +Warnings: +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 2 +SET optimizer_use_condition_selectivity=3; +# filtered should show 25 % +EXPLAIN EXTENDED SELECT * FROM t1 WHERE a=2; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 ALL NULL NULL NULL NULL 5 25.00 Using where +Warnings: +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 2 +FLUSH TABLES; +EXPLAIN EXTENDED SELECT * FROM t1 WHERE a=2; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 ALL NULL NULL NULL NULL 5 25.00 Using where +Warnings: +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 2 +set optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity; +set histogram_size=@save_histogram_size; +set use_stat_tables= @save_use_stat_tables; +DROP TABLE t1; +# End of 10.2 tests set @@global.histogram_size=@save_histogram_size; |