Bug #72997 "fast" ALTER TABLE CHANGE on enum column triggers full table rebuild.
Submitted: 13 Jun 2014 9:57 Modified: 27 Feb 2015 16:15
Reporter: Simon Mudd (OCA) Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: DDL Severity:S3 (Non-critical)
Version:5.6.17,5.7.4 OS:Linux
Assigned to: CPU Architecture:Any
Tags: ALTER TABLE, enum, no-op change

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: