Re: functions allowed in CHECK constraints
"David G. Johnston" <[email protected]>
| Newsgroups | gmane.comp.db.postgresql.sql |
|---|---|
| Message-ID | <CAKFQuwZx-jXU56MoYrnZ4fKn++_-XOHYgAM4--sMHS=8gJzeEQ@mail.gmail.com> |
On Fri, Feb 9, 2018 at 4:23 AM, Achilleas Mantzios < [email protected]> wrote: > On 09/02/2018 11:04, Achilleas Mantzios wrote: > >> Hello, >> > well it seems the intuition by reading the docs was correct, although not > exactly explicit. A Trigger is the way to do this. > >> .... >> > > I answered this on the first email you sent. Functions are black-boxes so its up to the author to ensure that the restrictions on check constraints remain met when using them. David J.