Re: First draft of PG 17 release notes

On Thu, Sep 05, 2024 at 09:51:25PM -0400, Bruce Momjian wrote:
> On Tue, Sep  3, 2024 at 10:44:01AM -0500, Nathan Bossart wrote:
> > While freely acknowledging that I am biased because I wrote it, I am a bit
> > surprised to see the DSM registry left out of the release notes (commit
> > 8b2bcf3, docs are here [0]).  This feature is intended to allow modules to
> > allocate shared memory after startup, i.e., without requiring the module to
> > be loaded via shared_preload_libraries.  IMHO that is worth mentioning.
> > 
> > [0] https://www.postgresql.org/docs/devel/xfunc-c.html#XFUNC-SHARED-ADDIN-AFTER-STARTUP
> 
> That seems more infrastructure/extension author stuff which isn't
> normally mentioned in the release notes.

If I understand the feature correctly, it allows extensions to be just
CREATEd without having them to be added to shared_preload_libraries,
i.e. saving the organization an instance restart/downtime.

That seems important enough for end-users to know, even if they will
need to wait for extension authors to catch up to this (but I guess a
lot will).


Michael