Re: PG 17 and GUC variables

On Sun, Aug 4, 2024 at 4:45 AM Heikki Linnakangas <hlinnaka@iki.fi> wrote:
> On 04/08/2024 06:29, Robert Treat wrote:
> > I was looking at trace_connection_negotiation and ran across this
> > commit removing it's mention from the release notes because it is
> > undocumented:
https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=95cabf542f04b634303f899600ea62fb256a08c2
> >
> > Why is the right solution to remove it from the release notes rather
> > than to document it properly? It's not like people won't notice a new
> > GUC has popped up in their configs. Also, presumaing I'm unerstanding
> > it's purpose correctly, ISTM it would fit along side other trace_*
> > gucs in https://www.postgresql.org/docs/current/runtime-config-developer.html#RUNTIME-CONFIG-DEVELOPER.
>
> Not sure whether it's worth mentioning in release notes, but I think
> you're right that it should be listed in that docs section. How about
> the attached description?
>

Slightly modified version attached which I think is a little more succinct.

> I see that there are two more developer-only GUCs that are not listed in
> the docs:
>
> trace_syncscan
> optimize_bounded_sort
>
> There's a comment on them that says "/* this is undocumented because not
> exposed in a standard build */", but that seems like a weak reason,
> given that many of the other options in that docs section also require
> additional build-time options. I think we should add those to the docs
> too for the sake of completeness.
>

Agreed.

Robert Treat
https://xzilla.net