Bug #15745 COUNT(DISTINCT x,y) and COUNT(DISTINCT CONCAT(x,y)) return different values
Submitted: 14 Dec 2005 16:29 Modified: 10 Mar 2006 18:21
Reporter: Giuseppe Maxia Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server Severity:S2 (Serious)
Version:5.0.16-max OS:Linux (Linux)
Assigned to: Alexey Botchkov 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: