database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-09-02 09:41:40 +03:00
Code Activity

Fixed bug #27937: crash for the the second execution of a prepared

Browse Source 
statement from a UNION query with ORDER BY an expression containing
RAND().
The crash happened because the global order by list in the union query
was not re-initialized for execution.
(Local order by lists were re-initialized though).
This commit is contained in:
igor@olga.mysql.com
2007-05-14 16:41:09 -07:00
parent 681ef616ed
commit d71043b889
3 changed files with 45 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
mysql-test/r/ps.result
View File

@@ -1087,4 +1087,26 @@ t2 CREATE TABLE `t2` (
drop database mysqltest;
deallocate prepare stmt1;
deallocate prepare stmt2;
CREATE TABLE t1(a int);
INSERT INTO t1 VALUES (2), (3), (1);
PREPARE st1 FROM
'(SELECT a FROM t1) UNION (SELECT a+10 FROM t1) ORDER BY RAND()*0+a';
EXECUTE st1;
a
1
2
3
11
12
13
EXECUTE st1;
a
1
2
3
11
12
13
DEALLOCATE PREPARE st1;
DROP TABLE t1;
End of 4.1 tests.