diff options
Diffstat (limited to 'mysql-test/main/selectivity_innodb.result')
| -rw-r--r-- | mysql-test/main/selectivity_innodb.result | 48 |
1 files changed, 44 insertions, 4 deletions
diff --git a/mysql-test/main/selectivity_innodb.result b/mysql-test/main/selectivity_innodb.result index ab698760c55..921bd20fc69 100644 --- a/mysql-test/main/selectivity_innodb.result +++ b/mysql-test/main/selectivity_innodb.result @@ -789,9 +789,9 @@ set optimizer_use_condition_selectivity=3; explain extended select * from t1 where a < 1 and a > 7; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables +1 SIMPLE t1 ALL NULL NULL NULL NULL 8 100.00 Using where Warnings: -Note 1003 select 7 AS `a` from `test`.`t1` where 0 +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` < 1 and `test`.`t1`.`a` > 7 select * from t1 where a < 1 and a > 7; a drop table t1; @@ -1517,9 +1517,9 @@ col1 explain extended select * from t2 where col1 < 'b' and col1 > 'd'; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables +1 SIMPLE t2 ALL NULL NULL NULL NULL 8 100.00 Using where Warnings: -Note 1003 select 'd' AS `col1` from `test`.`t2` where 0 +Note 1003 select `test`.`t2`.`col1` AS `col1` from `test`.`t2` where `test`.`t2`.`col1` < 'b' and `test`.`t2`.`col1` > 'd' drop table t1,t2; set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; set use_stat_tables=@save_use_stat_tables; @@ -1606,6 +1606,46 @@ drop table t1,t0; set histogram_size=@save_histogram_size; set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; set use_stat_tables=@save_use_stat_tables; +# +# MDEV-15306: Wrong/Unexpected result with the value +# optimizer_use_condition_selectivity set to 4 +# +CREATE TABLE t1 (a INT); +INSERT INTO t1 VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10); +CREATE FUNCTION f1() RETURNS INT DETERMINISTIC +BEGIN +SET @cnt := @cnt + 1; +RETURN 1; +END;| +set @save_optimizer_use_condition_selectivity=@@optimizer_use_condition_selectivity; +set @save_use_stat_tables= @@use_stat_tables; +set @@use_stat_tables='complementary'; +set @@optimizer_use_condition_selectivity=4; +SET @cnt= 0; +SELECT * FROM t1 WHERE a = f1(); +a +1 +SELECT @cnt; +@cnt +1 +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 +SET @cnt := 0; +set @@optimizer_use_condition_selectivity=4; +SELECT * FROM t1 WHERE a = f1(); +a +1 +SELECT @cnt; +@cnt +2 +alter table t1 force; +set @@use_stat_tables= @save_use_stat_tables; +set @@optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; +drop table t1; +drop function f1; set optimizer_switch=@save_optimizer_switch_for_selectivity_test; set @tmp_ust= @@use_stat_tables; set @tmp_oucs= @@optimizer_use_condition_selectivity; |