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MDEV-13723: Server crashes in ha_heap::find_unique_row or Assertion `0' failed in st_select_lex_unit::optimize with INTERSECT

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With INTERSECT/EXCEPT fact that subquery item of IN/ALL/ANY was not assigned value does not mean that temporary table used for calculating unit is empty (records could be deleted).
This commit is contained in:
Oleksandr Byelkin
2017-11-10 11:22:51 +01:00
parent 06a9a366a3
commit 623ed1c204
5 changed files with 31 additions and 5 deletions
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14
mysql-test/t/except.test
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@@ -81,3 +81,17 @@ create table t3 (select a,b,b1 from t1) except (select c,d,d1 from t2);
show create table t3;
drop tables t1,t2,t3;
--echo #
--echo # MDEV-13723: Server crashes in ha_heap::find_unique_row or
--echo # Assertion `0' failed in st_select_lex_unit::optimize with INTERSECT
--echo #
CREATE TABLE t (i INT);
INSERT INTO t VALUES (1),(2);
SELECT * FROM t WHERE i != ANY ( SELECT 3 EXCEPT SELECT 3 );
drop table t;
--echo # End of 10.3 tests