Re: making relfilenodes 56 bits

On Sat, Jul 2, 2022 at 4:53 AM Dilip Kumar <dilipbalaut@gmail.com> wrote:
> > I'm doubtful it's a good idea to start dropping at the first segment. I'm
> > fairly certain that there's smgrexists() checks in some places, and they'll
> > now stop working, even if there are later segments that remained, e.g. because
> > of an error in the middle of removing later segments.
>
> Okay, so you mean to say that we can first drop the remaining segment
> and at last we drop the segment 0 right?

I think we need to do it in descending order, starting with the
highest-numbered segment and working down. md.c isn't smart about gaps
in the sequence of files, so it's better if we don't create any gaps.

-- 
Robert Haas
EDB: http://www.enterprisedb.com