Bug #89379 summary_by_user tables get extremely slow with many users.
Submitted: 24 Jan 2018 11:41 Modified: 24 Jan 2018 12:26
Reporter: Daniƫl van Eeden (OCA) Email Updates:
Status: Verified Impact on me:
None 
Category:MySQL Server: Performance Schema Severity:S5 (Performance)
Version:5.7.20, 5.7.21 OS:Any
Assigned to: Marc ALFF 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: