Bug #25284 select CAST(UNHEX('7C40') AS UNSIGNED); fails. Apparently related to #13016.
Submitted: 26 Dec 2006 14:41 Modified: 26 Dec 2006 17:05
Reporter: Gonzalo Javier Larralde Email Updates:
Status: Not a Bug Impact on me:
None 
Category:MySQL Server: Data Types Severity:S2 (Serious)
Version:5.0.26-community OS:Windows (Windows XP)
Assigned to: CPU Architecture:Any
Tags: data convertion, data types, hex, INTEGER, UNHEX

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: