On Tue, Jun 11, 2024 at 10:39:51AM +0200, Matthias van de Meent wrote:
> On Tue, 11 Jun 2024 at 04:01, Nathan Bossart <nathandboss...@gmail.com> wrote:
>> It looks like pg_dump always uses template0, so AFAICT we don't even need
>> the suggested manual checkpoint after restoring template1.
> 
> Thanks for reminding me. It seems I misunderstood the reason why we
> first process template1 in create_new_objects, as I didn't read the
> comments thoroughly enough.

Actually, I think you are right that we need a manual checkpoint, except I
think we need it to be after prepare_new_globals().  set_frozenxids()
connects to each database (including template0) and updates a bunch of
pg_class rows, and we probably want those on disk before we start copying
the files to create all the user's databases.

-- 
nathan


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