Bug #67632 explain select 1 from (select sleep(10) from dual) as t1; runs 10 seconds in 5.6
Submitted: 19 Nov 2012 12:05 Modified: 13 Feb 2018 22:50
Reporter: Sveta Smirnova Email Updates:
Status: Not a Bug Impact on me:
None 
Category:MySQL Server: DML Severity:S3 (Non-critical)
Version:5.6.8, 5.7.0 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: