Re: PostgreSQL 18 GA press release draft

On Wed, Sep 10, 2025 at 11:13 AM Jonathan S. Katz <jkatz@postgresql.org> wrote:
>
> Hi,
>
> Please review for the press release for the following:
>
> * Correctness and accuracy of what's described - we want to be
> technically correct, but we also need to explain why something matters
> to our users.

PostgreSQL 18 adds [temporal
constraints](https://www.postgresql.org/docs/18/release-18.html#RELEASE-18-CONSTRAINTS)
-- constraints over ranges -- for both `PRIMARY KEY` and `UNIQUE`
constraints using the `WITHOUT OVERLAPS` clause, and on `FOREIGN KEY`
constraints using the `PERIOD` clause.

this link (https://www.postgresql.org/docs/18/release-18.html#RELEASE-18-CONSTRAINTS)
seems not that appropriate, since it does not explain WITHOUT OVERLAPS,
link (https://www.postgresql.org/docs/devel/sql-createtable.html#SQL-CREATETABLE-PARMS-UNIQUE)
would be more appropriate?