Re: PG 18 release notes draft committed - Mailing list pgsql-hackers

On Fri, May 2, 2025 at 10:44 AM Bruce Momjian <bruce@momjian.us> wrote:
>
> I have committd the first draft of the PG 18 release notes.  The item
> count looks strong:
>         release-17:   182
>         release-18:   209
>
> I will continue improving it until beta 1, and until the final release.
> I will probably add markup in 1-3 weeks.  Let the feedback begin.  ;-)
>
> You can see the most current HTML-built version here:
>
>         https://momjian.us/pgsql_docs/release-18.html
>

seems you missed this ([1]):

Detect redundant GROUP BY columns using UNIQUE indexes

d4c3a156c added support that when the GROUP BY contained all of the columns
belonging to a relation's PRIMARY KEY, all other columns belonging to that
relation would be removed from the GROUP BY clause. That's possible because all
other columns are functionally dependent on the PRIMARY KEY and those columns
alone ensure the groups are distinct.

[1] https://git.postgresql.org/cgit/postgresql.git/commit/?id=bd10ec529796a13670645e6acd640c6f290df020