Robert Haas <robertmhaas@gmail.com> writes:
> I don't think this is due to fillfactor - the default fillfactor is
> 100, and anyway we ARE larger on disk than Oracle. We really need to
> do something about that, in the changes to NUMERIC in 9.1 are a step
> in that direction, but I think a lot more work is needed.
Of course, the chances of doing anything more than extremely-marginal
kluges without breaking on-disk compatibility are pretty tiny. Given
where we are at the moment, I see no appetite for forced dump-and-reloads
for several years to come. So I don't foresee that anything is likely
to come of such efforts in the near future. Even if somebody had a
great idea that would make things smaller without any other penalty,
which I'm not sure I believe either.
regards, tom lane