Bug #104758 UPDATE gets unnecessary locks in Repeatable-read isolation level
Submitted: 29 Aug 2021 12:26 Modified: 30 Aug 2021 13:16
Reporter: Dai Dinary Email Updates:
Status: Not a Bug Impact on me:
None 
Category:MySQL Server: Locking Severity:S5 (Performance)
Version:Ver 8.0.25 for Linux on x86_64 OS:Any
Assigned to: CPU Architecture:Any
Tags: locks, performance, REPEATABLE-READ

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: