Bug #67230 EXPLAIN can crash server or deny service on SELECT statement
Submitted: 15 Oct 2012 8:59 Modified: 12 Nov 2012 15:57
Reporter: Jan Rusch Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Optimizer Severity:S1 (Critical)
Version:5.6.7 5.6.8 OS:Windows (7 64bit)
Assigned to: Gleb Shchepa CPU Architecture:Any
Tags: crash, denial of service, DoS, explain, regression, SELECT

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: