Jeff Williams <jeffw@globaldial.com> writes:
> last_status_change timestamp DEFAULT now()
> What I would like is that whenever the status is changed the
> last_status_change timestamp is updated to the current time.
For this you use an ON UPDATE trigger; rules are not a good way to solve
it. See the documentation about triggers. The first example on this
page does it along with a few other things:
http://developer.postgresql.org/docs/postgres/plpgsql-trigger.html
regards, tom lane
