Bug #56714 Slow MAX() on primary key retrieved by secondary index in InnoDB
Submitted: 10 Sep 2010 12:45 Modified: 2 Apr 2013 7:20
Reporter: Nicholas Sherlock Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Optimizer Severity:S5 (Performance)
Version:5.1.50, 5.1.51-bzr OS:Windows
Assigned to: CPU Architecture:Any

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: