Re: [oauth] Bug: when is shutdown_cb called?

On Wed, Feb 18, 2026 at 4:50 AM Zsolt Parragi <zsolt(dot)parragi(at)percona(dot)com> wrote:
> Maybe we should just fix the documentation instead?

Yeah, this is just a docs bug. It changed in v47 of the original
patchset [1] but I forgot to update the documentation. (It was
originally a before_shmem_exit implementation, which is why that fits
the description well. :D)

I propose the attached diff, with a backport to 18.

> The advantages: things like expiration checks[2], or repeated
> validation in the future when we implement token refresh need a
> working validator state, which means either we have to call
> startup/shutdown multiple times, or keep the context.

Personally I think it's fine for more complicated behavior to require
more integration into the existing server APIs. We don't need to
reinvent OAuth-specific wheels; implementations will just need to pay
attention to memory contexts and _PG_init like standard extensions
already do.

Thanks,
--Jacob

[1] https://www.postgresql.org/message-id/CAOYmi%2BnHG7oy%2BybHH72WjiXAQG3tE6v_at-K9ebRy2oqo92V%2BA%40mail.gmail.com