Bug #72854 Extremely slow performance with outer joins and join buffer
Submitted: 3 Jun 2014 20:12 Modified: 5 Oct 2017 15:43
Reporter: Sergey Petrunya Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Optimizer Severity:S2 (Serious)
Version:5.6.17 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: