Re: type cache cleanup improvements - Mailing list pgsql-hackers

On Fri, Apr 11, 2025 at 11:32 PM Noah Misch <noah@leadboat.com> wrote:
>
> On Tue, Oct 22, 2024 at 08:33:24PM +0300, Alexander Korotkov wrote:
> > On Tue, Oct 22, 2024 at 6:10 PM Pavel Borisov <pashkin.elfe@gmail.com> wrote:
> > > On Tue, 22 Oct 2024 at 11:34, Alexander Korotkov <aekorotkov@gmail.com> wrote:
> > >> I'm going to push this if no objections.
>
> (This became commit b85a9d0.)
>
> > +     /* Call delete_rel_type_cache() if we actually cleared something */
> > +     if (hadTupDescOrOpclass)
> > +             delete_rel_type_cache_if_needed(typentry);
>
> I think the intent was to maintain the invariant that a RelIdToTypeIdCacheHash
> entry exists if and only if certain kinds of data appear in the TypeCacheHash
> entry.  However, TypeCacheOpcCallback() clears TCFLAGS_OPERATOR_FLAGS without
> maintaining RelIdToTypeIdCacheHash.  Is it right to do that?

Thank you for the question.  I'll recheck this in next couple of days.

------
Regards,
Alexander Korotkov
Supabase