Bug #45001 EXPLAIN says "Using index; Using filesort", however table scan is used
Submitted: 21 May 2009 6:22 Modified: 6 Jul 2009 13:31
Reporter: Yuan WANG Email Updates:
Status: Verified Impact on me:
None 
Category:MySQL Server: Optimizer Severity:S3 (Non-critical)
Version:5.1.33, 4.1, 5.0, 5.1, 6.0 bzr 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: