Bug #80677 Optimizer chooses wrong index for LEFT JOIN ORDER BY query
Submitted: 9 Mar 2016 19:37 Modified: 23 Mar 2018 12:54
Reporter: monty solomon Email Updates:
Status: No Feedback Impact on me:
None 
Category:MySQL Server: Optimizer Severity:S5 (Performance)
Version:5.6.25, 5.7.18 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: