On Oct 8, 2004, at 10:19 PM, David Garamond wrote:
> Michael Glaesemann wrote:
>> In any case, one would never use NULL. Either the domain includes a
>> value for all possible values (including N/A) or you set up the db
>> schema appropriately.
>
> Hm, that can be painful. What if I have ten optional attributes;
> separate them to ten different tables?
Strictly? That's how I understand it. Whether or not it's performant
under PostgreSQLis another matter. :)
Michael Glaesemann
grzm myrealbox com