Bug #81770 Manual description for derived_merge & delete isn't apply for 5.7.11 or later.
Submitted: 8 Jun 2016 6:00 Modified: 24 Aug 2016 17:04
Reporter: Meiji Kimura Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Documentation Severity:S3 (Non-critical)
Version:5.7.11 or later 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: