diff options
Diffstat (limited to 'mysql-test/main/derived_cond_pushdown.result')
| -rw-r--r-- | mysql-test/main/derived_cond_pushdown.result | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/mysql-test/main/derived_cond_pushdown.result b/mysql-test/main/derived_cond_pushdown.result index 701186847cc..0f2e6f0e2a2 100644 --- a/mysql-test/main/derived_cond_pushdown.result +++ b/mysql-test/main/derived_cond_pushdown.result @@ -10590,6 +10590,47 @@ a abc DROP VIEW v1; DROP TABLE t1; +# +# MDEV-19179: pushdown into UNION of aggregation selects whose +# corresponding columns have different names +# +create table t1 (a int); +insert into t1 values (3), (7), (1); +select * +from (select min(a) as x from t1 union all select max(a) as y from t1) t +where x>0; +x +1 +7 +explain extended select * +from (select min(a) as x from t1 union all select max(a) as y from t1) t +where x>0; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 6 100.00 Using where +2 DERIVED t1 ALL NULL NULL NULL NULL 3 100.00 +3 UNION t1 ALL NULL NULL NULL NULL 3 100.00 +Warnings: +Note 1003 /* select#1 */ select `t`.`x` AS `x` from (/* select#2 */ select min(`test`.`t1`.`a`) AS `x` from `test`.`t1` having `x` > 0 union all /* select#3 */ select max(`test`.`t1`.`a`) AS `x` from `test`.`t1` having `x` > 0) `t` where `t`.`x` > 0 +prepare stmt from "select * +from (select min(a) as x from t1 union all select max(a) as y from t1) t +where x>0"; +execute stmt; +x +1 +7 +execute stmt; +x +1 +7 +deallocate prepare stmt; +create view v1(m) as +select min(a) as x from t1 union all select max(a) as y from t1; +select * from v1 where m > 0; +m +1 +7 +drop view v1; +drop table t1; # End of 10.2 tests # # MDEV-14579: pushdown conditions into materialized views/derived tables |