Heikki Linnakangas <heikki.linnakangas@enterprisedb.com> writes:
> I'd really like to work on this to get it into 8.4, but being honest to
> myself, I don't think I have the time to finish and benchmark it. I'm
> swamped with reviewing other's patches, as well as with non-PG-related
> work. I have some work to do on my visibility map patch too, which seems
> more important.
Agreed, you should get the visibility map done first. The copy hack is
just a marginal thing; partial vacuums would be game-changing.
regards, tom lane