Bug #79665 Manual does NOT explain locks set by INSERT ... ON DUPLICATE KEY UPDATE properly
Submitted: 16 Dec 2015 10:50 Modified: 31 May 2017 20:02
Reporter: Valeriy Kravchuk Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Documentation Severity:S3 (Non-critical)
Version:any OS:Any
Assigned to: CPU Architecture:Any
Tags: innodb, IODU, locks, missing manual, primary, unique

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: