mirror of
https://github.com/MariaDB/server.git
synced 2025-07-29 05:21:33 +03:00
MDEV-28206: SIGSEGV in Item_field::fix_fields when using LEAD...OVER
thd->lex->in_sum_func->max_arg_level cannot be set to a bigger value of select->nest_level if select is null.
This commit is contained in:
@ -4359,6 +4359,30 @@ row_number() OVER (order by a)
|
||||
3
|
||||
drop table t1;
|
||||
#
|
||||
# MDEV-28206 SIGSEGV in Item_field::fix_fields when using LEAD...OVER
|
||||
#
|
||||
CREATE TABLE t(c1 INT);
|
||||
CREATE FUNCTION f() RETURNS INT READS SQL DATA BEGIN
|
||||
DECLARE v INT;
|
||||
SELECT 1 INTO v FROM (SELECT c1,COALESCE(LEAD(a2.c1) OVER (PARTITION BY a2.c1 ORDER BY a2.c1),a2.c1) AS a1 FROM (t a2 JOIN t a3 USING (c1))) a4;
|
||||
RETURN 1;
|
||||
END//
|
||||
SELECT f(),f();
|
||||
f() f()
|
||||
1 1
|
||||
EXECUTE IMMEDIATE "SELECT LEAD(c1) OVER (ORDER BY c1) FROM t NATURAL JOIN t AS a;";
|
||||
LEAD(c1) OVER (ORDER BY c1)
|
||||
EXECUTE IMMEDIATE "SELECT SUM(c1) OVER (ORDER BY c1) FROM t NATURAL JOIN t AS a;";
|
||||
SUM(c1) OVER (ORDER BY c1)
|
||||
EXECUTE IMMEDIATE "SELECT LEAD(c) OVER (ORDER BY c) FROM (SELECT 1 AS c) AS a NATURAL JOIN (SELECT 1 AS c) AS b;";
|
||||
LEAD(c) OVER (ORDER BY c)
|
||||
NULL
|
||||
DROP FUNCTION f;
|
||||
DROP TABLE t;
|
||||
#
|
||||
# End of 10.6 tests
|
||||
#
|
||||
#
|
||||
# MDEV-23867: select crash in compute_window_func
|
||||
#
|
||||
set @save_sort_buffer_size=@@sort_buffer_size;
|
||||
|
Reference in New Issue
Block a user