Re: Maximize page freezing

On Thu, 28 Jul 2022 at 20:57, Peter Geoghegan <pg(at)bowt(dot)ie> wrote:
>
> On Thu, Jul 28, 2022 at 6:56 AM Matthias van de Meent
> <boekewurm+postgres(at)gmail(dot)com> wrote:
> > Great idea, yet this patch seems to only freeze those tuples that are
> > located after the first to-be-frozen tuple. It should probably
> > re-visit earlier live tuples to potentially freeze those as well.
>
> I have a big patch set pending that does this (which I dubbed
> "page-level freezing"), plus a bunch of other things that control the
> overhead. Although the basic idea of freezing all of the tuples on a
> page together appears in earlier patching that were posted. These were
> things that didn't make it into Postgres 15.

Yes, my patch from 2020 was never reviewed, which is why I was
resubmitting here.

> I should be able to post something in a couple of weeks.

How do you see that affecting this thread?

--
Simon Riggs http://www.EnterpriseDB.com/