From: | "Rob Arnold" <rob(at)cabrion(dot)com> |
---|---|
To: | "Bruno Wolff III" <bruno(at)wolff(dot)to>, "Peter Eisentraut" <peter_e(at)gmx(dot)net> |
Cc: | "mazzo" <jambo(at)aruba(dot)it>, <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: abs() does not exists.. |
Date: | 2001-06-13 23:42:42 |
Message-ID: | 001801c0f462$8acd5a20$4901010a@canrion.net |
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Thread: | |
Lists: | pgsql-general |
How about a trigger/function that does this:
if val < 0 then val = val * -1
--rob
----- Original Message -----
From: "Bruno Wolff III" <bruno(at)wolff(dot)to>
To: "Peter Eisentraut" <peter_e(at)gmx(dot)net>
Cc: "mazzo" <jambo(at)aruba(dot)it>; <pgsql-general(at)postgresql(dot)org>
Sent: Wednesday, June 13, 2001 10:45 AM
Subject: Re: abs() does not exists..
> On Wed, Jun 13, 2001 at 12:11:42AM +0200,
> Peter Eisentraut <peter_e(at)gmx(dot)net> wrote:
> > mazzo writes:
> >
> > > Hi all..i'm trying to create a trigger that fires before i insert a
value into a column and if the value i insert is negative, it will change it
to positive...
>
> Couldn't you do this using a rule to update the table and a constraint on
> the table to prevent bad data from getting into the table without using
the
> rule?
>
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