database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00
Code Activity

MDEV-15208: server crashed, when using ORDER BY with window function and UNION

Browse Source 
(Edits by SergeiP: fix encryption.tempfiles_encrypted, re-word comment)

Global ORDER BY clause of a UNION may not refer to 1) aggregate functions
or 2) window functions.  setup_order() checked for #1 but not for #2.
This commit is contained in:
Varun Gupta
2020-12-14 14:34:14 +05:30
committed by Sergei Petrunia
parent 942a9791b2
commit 647e952315
1 changed files with 8 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
mysql-test/suite/encryption/r/tempfiles_encrypted.result
View File

@ -4236,6 +4236,14 @@ i LAST_VALUE(COUNT(i)) OVER (PARTITION BY i ORDER BY j)
4 2
DROP TABLE t1;
#
# MDEV-15208: server crashed, when using ORDER BY with window function and UNION
#
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1),(1),(1),(1),(1),(2),(2),(2),(2),(2),(2);
SELECT 1 UNION SELECT a FROM t1 ORDER BY (row_number() over ());
ERROR HY000: Expression #1 of ORDER BY contains aggregate function and applies to a UNION
DROP TABLE t1;
#
# End of 10.2 tests
#
#