Bug #81914 The optimizer is choosing the wrong index
Submitted: 17 Jun 2016 22:42 Modified: 18 Aug 2016 12:53
Reporter: monty solomon Email Updates:
Status: No Feedback Impact on me:
None 
Category:MySQL Server: Optimizer Severity:S2 (Serious)
Version:5.7.12 OS:CentOS
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: