MAC address as primary key - BIGINT or CHAR(12)

Hi. Currently I have a table: 1. MAC address defined as BIGINT 2. MAC address set as primary key Should I consider changing it to CHAR(12)? Replies will be appreciated. Ilia

RE: MAC address as primary key - BIGINT or CHAR(12)

6th byte the last 2 bytes (of the BIGINT) left unused. Ilia From: Fish Kungfu [mailto:fish.kun...@gmail.com] Sent: Thursday, May 14, 2009 3:54 PM To: Ilia KATZ Cc: mysql@lists.mysql.com Subject: Re: MAC address as primary key - BIGINT or CHAR(12