Re: Why clearing the VM doesn't require registering vm buffer in wal record

[Andrey Borodin]

> On 27 Jun 2026, at 15:41, Andrey Borodin <x4...@yandex-team.ru> wrote:
> 
> I've done some
> mechanical checks on the 18 variant

A couple of minor things:

 - The new t/012_vm_consistency.pl needs pg_visibility, but
src/bin/pg_combinebackup/Makefile doesn't declare
EXTRA_INSTALL=contrib/pg_visibility, so a standalone
"make -C src/bin/pg_combinebackup check" fails with "extension pg_visibility
is not available". (meson test and make check-world are fine, since they install
the whole tree) (for example see how src/bin/pg_amcheck pulls 
amcheck/pageinspect)

 - A tiny wording nit: the comment on the retained visibilitymap_clear()
says it's kept "for backwards compatibility". Maybe spell out that it's kept for
ABI(prototype stability) on the back branches?


Best regards, Andrey Borodin.