[development] Why do we avoid auto-incrementing db columns?

[Mike Cantelon]

Mark Fredrickson wrote:
> theming and IO on top of that. E.g. CCK would be a great candidate for
> going to the db layer.
Putting more logic into the DB layer requires that more logic be ported 
to each database version with each version having to be maintained. By 
having logic such as CCK use Drupal's database API this extra work is 
avoided.

Mike Cantelon