Re: Comments on Custom RMGRs

On Tue, Feb 27, 2024 at 2:56 AM Jeff Davis <pgsql@j-davis.com> wrote:
> Let's pick this discussion back up, then. Where should the hook go?
> Does it need to be broken into phases like resource owners? What
> guidance can we provide to extension authors to use it correctly?
>
> Simon's right that these things don't need to be 100% answered for
> every hook we add; but I agree with Andres and Robert that this could
> benefit from some more discussion about the details.
>
> The proposal calls the hook right after CheckPointPredicate() and
> before CheckPointBuffers(). Is that the right place for the use case
> you have in mind with pg_stat_statements?

Hello!

Answering your questions might take some time as I want to write a sample
patch for pg_stat_statements and make some tests.
What do you think about putting the patch to commitfest as it closing in a
few hours?

--
Regards,
Daniil Anisimov
Postgres Professional: http://postgrespro.com