Bug #60719 Field info in EXPLAIN EXT./GROUP BY WITH ROLLUP says NOT NULL and contains NULL
Submitted: 1 Apr 2011 8:40 Modified: 11 Feb 2018 13:27
Reporter: - - Email Updates:
Status: Can't repeat Impact on me:
None 
Category:MySQL Server: DML Severity:S3 (Non-critical)
Version:5.5.10, 5.5.9 OS:Any
Assigned to: CPU Architecture:Any
Tags: explain, extended, null

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: