Hi, On 2022-04-13 16:45:44 -0700, Peter Geoghegan wrote: > On Wed, Apr 13, 2022 at 4:38 PM Tom Lane <t...@sss.pgh.pa.us> wrote: > > So what seems to be happening on wrasse is that a background > > autovacuum (or really autoanalyze?) is preventing pages from > > being marked all-visible not only during test_setup.sql but > > also create_index.sql; but it's gone by the time sanity_check.sql > > runs. > > I agree that it would need to be an autoanalyze (due to the > PROC_IN_VACUUM optimization).
That's not a realiable protection - the snapshot is established normally at first, only after a while we set PROC_IN_VACUUM... Greetings, Andres Freund