Bug #77009 SELECT FOR UPDATE write locks on gaps are not exclusive
Submitted: 12 May 2015 3:20 Modified: 10 May 2018 13:51
Reporter: Donald Ball Email Updates:
Status: No Feedback Impact on me:
None 
Category:MySQL Server: Locking Severity:S3 (Non-critical)
Version:5.5 OS:Any
Assigned to: CPU Architecture:Any
Tags: locking gaps index

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: