On Thu, Mar 24, 2022 at 9:59 AM Peter Geoghegan <p...@bowt.ie> wrote: > On Wed, Mar 23, 2022 at 1:53 PM Robert Haas <robertmh...@gmail.com> wrote: > > And therefore I favor defining it to mean that we don't > > skip any work at all. > > But even today DISABLE_PAGE_SKIPPING won't do pruning when we cannot > acquire a cleanup lock on a page, unless it happens to have XIDs from > before FreezeLimit (which is probably 50 million XIDs behind > OldestXmin, the vacuum_freeze_min_age default). I don't see much > difference.
Yeah, I found it confusing that DISABLE_PAGE_SKIPPING doesn't disable all page skipping, so 3414099c turned out to be not enough.
