Re: archive modules

On 11/2/21, 8:57 AM, "Robert Haas" <robertmhaas@gmail.com> wrote:
> On Tue, Nov 2, 2021 at 11:26 AM Bossart, Nathan <bossartn@amazon.com> wrote:
>> Well, the current patch does require a reload since the modules are
>> preloaded, but maybe there is some way to avoid that.
>
> I think we could set things up so that if the value changes, you call
> a shutdown hook for the old library, load the new one, and call any
> startup hook for that one.

Yes, that seems doable.  My point is that I've intentionally chosen to
preload the libraries at the moment so that it's possible to define
PGC_POSTMASTER GUCs and to use RegisterBackgroundWorker().  If we
think that switching archive modules without restarting is more
important, I believe we will need to take on a few restrictions.

Nathan