Re: eliminate xl_heap_visible to reduce WAL (and eventually set VM on-access) - Mailing list pgsql-hackers

On Fri, Jan 30, 2026 at 4:25 AM Kirill Reshke <reshkekirill@gmail.com> wrote:
>
> > create table test_vac_unmodified_heap(a int) with (autovacuum_enabled = false);
>
> Yes I did try this, but it does not help, because autovacuum runs on
> catalog relations, still causing fail.
>
> We cannot disable autovac globally in regression suite, so I propose
> to changes this to TAp test

Andres suggested making the table a temp table. He said other sessions
vacuuming catalog tables shouldn't affect the temp table horizon. If
you try that in your repro does it fix it?

- Melanie