Tom Lane wrote:
>
> > Would a solution to the problem be to automatically include the row OID
> > when creating an index?
>
> Vadim had muttered about doing something like that as a substitute for
> fixing the equal-keys logic, but it seems like a kluge to me, especially
> if it makes the index bigger. (OTOH I think he was envisioning using
> some already-existing field of index tuple headers as the tiebreaker,
> so maybe it wouldn't cost any space.)
It will increase size of index tuples on inner pages, but not
on leaf ones.
Vadim