Bug #63122 "Searched SQL update" seems to release lock got by "select for update"
Submitted: 6 Nov 2011 22:51 Modified: 8 Nov 2011 9:47
Reporter: Phantom Within Email Updates:
Status: Verified Impact on me:
None 
Category:MySQL Server: InnoDB storage engine Severity:S3 (Non-critical)
Version:5.0+ OS:Any
Assigned to: CPU Architecture:Any
Tags: deadlock, innodb, locking, server

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: