Re: triggers on date? - Mailing list pgsql-general

From Lev Lvovsky
Subject Re: triggers on date?
Date
Msg-id Pine.LNX.4.43.0207021140330.23618-100000@ground0.sonous.com
Whole thread Raw
In response to Re: triggers on date?  (Jason Earl <jason.earl@simplot.com>)
Responses Re: triggers on date?  (Jason Earl <jason.earl@simplot.com>)
List pgsql-general
this is for a billing system, at this point it's a toss-up b/w the
following:

1. a script grabs clients which need billing on a nightly basis
2. a script grabs clients which need billing for a particular time
interval (every hour, ever two hours etc...).

what methods are used for making this close to real-time - constant
polling?

thanks!
-lev

On 2 Jul 2002, Jason Earl wrote:

>
> If it only needs to be /fairly/ realtime, then you could use cron to
> fire a script every minute.  Otherwise you could write an external
> long-running program that listens for notifies.
>
> Jason
>
> Lev Lvovsky <lists1@sonous.com> writes:
>
> > is it possible to create a trigger when the system time has reached the
> > date of a particular record?  I know this is possible with an external
> > script, but I'm not quite sure how to go about making it fairly
> > real-time...
> >
> > thanks!
> > -lev
> >
> >
> >
> >
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