Re: make MaxBackends available in _PG_init

On Tue, Apr 12, 2022 at 03:12:42PM -0400, Robert Haas wrote:
> But if there's even one use case where adjusting GUCs at this phase is
> reasonable, then 0003 isn't really good enough. We need an 0004 that
> provides a new hook in a place where such changes can safely be made.

I think that is doable.  IMO it should be ѕomething like _PG_change_GUCs()
that is called before _PG_init().  The other option is to add a hook called
after _PG_init() where MaxBackends is available (in which case we likely
want GetMaxBackends() again).  Thoughts?

> Meanwhile, committed 0001.

Thanks.

-- 
Nathan Bossart
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