Tom Lane wrote:
>
> Hiroshi Inoue <Inoue@tpf.co.jp> writes:
> > Tom Lane wrote:
> >> Unless we want to abandon MVCC (which I don't), I think an overwriting
> >> smgr is impractical.
>
> > Impractical ? Oracle does it.
>
> Oracle has MVCC?
>
Yes.
regards,
Hiroshi Inoue