Alvar Freude <alvar(dot)freude(at)merz-akademie(dot)de> writes:
> I guess, that there are about 100 million to 1000 million table entries
You'd probably find the OID counter wrapping around before too long.
However, as long as you don't assume that OIDs are unique in your data
tables, that shouldn't bother you a whole lot. AFAIK you should be
able to make it work.
regards, tom lane