Subject: Re: obtuse plpgsql function needs
From: Robert Treat <xzilla@users.sourceforge.net>
To: elein <elein@varlena.com>
Cc: pgsql-sql@postgresql.org
In-Reply-To: <20030722163335.A18881@cookie>
References: <1058913112.22259.271.camel@camel> <20030722163335.A18881@cookie>
Content-Type: text/plain
Content-Transfer-Encoding: 7bit
Date: 23 Jul 2003 09:06:49 -0400
Message-Id: <1058965609.22259.292.camel@camel>
Mime-Version: 1.0

On Tue, 2003-07-22 at 19:33, elein wrote:
> You'll need to pass the values down to your
> concat function (which I suggest you don't call concat)
> and have it return a text type.
> 
> What exactly is your problem?  I must be missing something.
> 

The problem is that I need the function to be generic so that I don't
have to pass the values down to the function, it just grabs the values
automagically based on the table it's being called against.

Robert Treat 

> elein
> 
> On Tue, Jul 22, 2003 at 06:31:52PM -0400, Robert Treat wrote:
> > given 
> > 
> > create table t1 (f,f1,f2,f3);
> > create table t2 (f,f4,f5,f6);
> > 
> > i'm trying to create a function concat() that does something like:
> > 
> > select f,concat() as info from t1;
> > 
> > which returns a result set equivalent to:
> > select f,('f1:' || f1 || '- f2:' || f2 || '- f3:' || f3) as x from t1;
> > 
> > or
> > select f,concat() as info from t2;
> > returns equivalent
> > 
> > select f,('f4:' || f4 || ' - f5:' || f5 || ' - f6:' || f6) as x from t2;
> > 
-- 
Build A Brighter Lamp :: Linux Apache {middleware} PostgreSQL