| Bug #12379 | PROCEDURE with HANDLER calling FUNCTION with error get strange result | ||
|---|---|---|---|
| Submitted: | 4 Aug 2005 12:48 | Modified: | 15 Sep 2005 17:20 |
| Reporter: | Anders Karlsson | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server | Severity: | S3 (Non-critical) |
| Version: | 5.0.10 | OS: | Linux (Linux) |
| Assigned to: | Bugs System | CPU Architecture: | Any |
[4 Aug 2005 12:50]
Anders Karlsson
Or rather, the call to myproc2() will hang, I guess... Anyway it doesn't return.
[4 Aug 2005 13:05]
MySQL Verification Team
Below the current behavior with BK source server: mysql> call myproc1(); ERROR 2027 (HY000): Malformed packet mysql> call myproc2(); Packets out of order (Found: 5, expected 1) ERROR 2013 (HY000): Lost connection to MySQL server during query mysql>
[9 Aug 2005 4:48]
David Axmark
Changed priority since the dropping a connection is more than non-critical
[6 Sep 2005 15:08]
Bugs System
A patch for this bug has been committed. After review, it may be pushed to the relevant source trees for release in the next version. You can access the patch from: http://lists.mysql.com/internals/29375
[8 Sep 2005 23:41]
Michael Widenius
Proposed a more general solutuion in review email. Need more discussion to decide which solution is better
[15 Sep 2005 17:20]
Paul DuBois
Noted in 5.0.13 changelog.
Description: A procedure with a handler for SQLEXCEPTION that calls a STORED FUNCTION (not a UDF) that returns an error, will return strange data or get into a loop in some cases. Might be related to 7049, I don't know, they seem to deal with similar issues. How to repeat: Create these objects: DROP TABLE IF EXISTS t1; CREATE TABLE t1(c1 CHAR(1)); DROP FUNCTION IF EXISTS myfunc; delimiter // CREATE FUNCTION myfunc() RETURNS INTEGER BEGIN DECLARE v1 INTEGER; INSERT INTO t1 VALUES('X', 'Y'); RETURN 0; END; // delimiter ; DROP PROCEDURE IF EXISTS myproc1; delimiter // CREATE PROCEDURE myproc1() BEGIN DECLARE EXIT HANDLER FOR SQLEXCEPTION SELECT 1; SELECT myfunc(); END; // delimiter ; DROP PROCEDURE IF EXISTS myproc2; delimiter // CREATE PROCEDURE myproc2() BEGIN DECLARE EXIT HANDLER FOR SQLEXCEPTION BEGIN END; SELECT myfunc(); END; // delimiter ; Now, to see the errors: mysql> call myproc1(); ERROR 2027 (HY000): Malformed packet mysql> call myproc2(); -- The above will loop and loop and loop....