Lincoln Yeoh <lyeoh@pop.jaring.my> writes:
> Would 7.2 maintain performance when updating a row repeatedly (update,
> commit)?
You'll still need to VACUUM to get rid of the obsoleted versions of the
row. The point of the planned 7.2 changes is to make VACUUM cheap and
nonintrusive enough so that you can run it frequently on tables that are
seeing continual updates.
regards, tom lane