I agree - but I think messing with the algorithm in any way is no longer ensuring they will be unique.
This techique is very clever, however, and although I have no proof and don't have the necessary grounding in mathematics, I believe this will be much more likely (though improbable, maybe) to produce duplicates than a proper UUID. (which is very very improbable) - James -----Original Message----- From: Mark Stanton [mailto:[EMAIL PROTECTED] Sent: Thursday, September 11, 2003 4:56 PM To: CFAussie Mailing List Subject: [cfaussie] RE: a long shot... I think the idea behind Vaughen suggestions is to address the issue of sections of different UUIDs being identical. You may have unique two 35 character UUIDs in which the first 8 characters are identical (fairly common). I think Vaughan is suggesting that by hashing these two UUIDs then grabbing the first 8 characters you have a better chance of getting a unique value. The way I understand it is that UUIDs are not random but they should always be unique. If CF is generating identical UUIDs its doing something wrong. Cheers Mark ______________ Mark Stanton Web Production Gruden Pty Ltd Tel: 9956 6388 Mob: 0410 458 201 Fax: 9956 8433 http://www.gruden.com --- You are currently subscribed to cfaussie as: [EMAIL PROTECTED] To unsubscribe send a blank email to [EMAIL PROTECTED] MX Downunder AsiaPac DevCon - http://mxdu.com/ --- You are currently subscribed to cfaussie as: [EMAIL PROTECTED] To unsubscribe send a blank email to [EMAIL PROTECTED] MX Downunder AsiaPac DevCon - http://mxdu.com/
