Bug #74543 read_only=1 prevents EXPLAIN UPDATE/DELETE/INSERT
Submitted: 24 Oct 2014 10:11 Modified: 24 Oct 2014 11:48
Reporter: Alexey Kopytov Email Updates:
Status: Verified Impact on me:
None 
Category:MySQL Server: Optimizer Severity:S3 (Non-critical)
Version:5.6/5.7, 5.7.18 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: