Bug #26511 A composite index prefix is used when all of the key_len could be used.
Submitted: 20 Feb 2007 22:47 Modified: 17 Aug 2007 20:05
Reporter: Sean Pringle Email Updates:
Status: Verified Impact on me:
None 
Category:MySQL Server: Optimizer Severity:S4 (Feature request)
Version:4.0, 4.1, 5.0, 5.1 OS:Any
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: