Bug #82562 exists (select max(id) from t3 where id=2) produced the undesired result
Submitted: 12 Aug 2016 5:12 Modified: 12 Aug 2016 7:52
Reporter: chen chen Email Updates:
Status: Not a Bug Impact on me:
None 
Category:MySQL Server: DML Severity:S3 (Non-critical)
Version:5.6.31,5.7.14 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: