MySQL Bugs: #31418: User locks misfunctioning after mysql_change

Bug #31418	User locks misfunctioning after mysql_change_user()
Submitted:	5 Oct 2007 11:10	Modified:	24 Oct 2007 19:51
Reporter:	Ulf Wendel	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Server	Severity:	S1 (Critical)
Version:	5.1.21-beta-debug	OS:	Linux (Linux linux-eu6p 2.6.16.53-0.8-bigsmp #1 SMP Fri Aug 31 13:07:27 UTC 2007 i686 i686 i386 GNU/Linux)
Assigned to:	Alexander Nozdrin	CPU Architecture:	Any
Tags:	mysql_change_user

File:	Maximum allowed size is 50MB.
Description:
Privacy:

If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.

To split a large file:

On *nix platforms use the split command e.g. split -b 50MB <my_large_archive> <my_split_archive_prefix>
On windows use WinZip or a similar utility to split the large file

C test code

Attachment: change_user.c (text/x-csrc), 5.61 KiB.

PHP test code (enable test in SKIPIF!), php.net phpt format -> qa.php.net

Attachment: mysqli_change_user_get_lock.phpt (application/octet-stream, text), 3.81 KiB.