Bug #102375 A deadlock occurred while truncate was executing
Submitted: 26 Jan 2021 8:57 Modified: 26 Jan 2021 15:17
Reporter: linfeng chen Email Updates:
Status: Not a Bug Impact on me:
None 
Category:MySQL Server Severity:S5 (Performance)
Version:5.7.21 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: