> > Can I use it as a primary key?
>
> Yes, but I recommend against it, because OIDs are easily lost after a
> database restore...
>
i use OIDs to refer to unique records instead of using 3 or more composite
keys in the table for some processing. ANd it's wise to index the oid
field also. But i dont use it as a primary key... as stated above.
-herbert