From: George Weaver <gweaver@shaw.ca>
To: Marc G. Fournier <scrappy@postgresql.org>
To: pgsql-sql@postgresql.org
Subject: Re: PL/PgSQL - returning multiple columns ...
Date: Wed, 02 Feb 2005 16:45:42 -0600
Message-ID: <00c701c50978$f01c9e20$6400a8c0@Dell4500> (raw)
References: <20050202170643.R27579@ganymede.hub.org>
Hi Marc,
One option is to create a simple data type and return the rowtype of the
datatype
eg CREATE TYPE tserverload AS ("server_name" text, "load_avg" int4);
CREATE FUNCTION getserverload()
RETURNS tserverload
AS
'DECLARE
r tserverload%rowtype;
etc.
You would then return r, comprised of r.server_name and r.load_avg.
George
----- Original Message -----
From: "Marc G. Fournier" <scrappy@postgresql.org>
To: <pgsql-sql@postgresql.org>
Sent: Wednesday, February 02, 2005 3:10 PM
Subject: [SQL] PL/PgSQL - returning multiple columns ...
>
> I have a function that I want to return 'server_name, avg(load_avg)' ...
> if I wanted to return matching rows in a table, I can do a 'setof
> <table>', with a for loop inside ... but what do I set the 'RETURNS' to if
> I want to return the results of query that returns only two fields of a
> table, or, in the case of the above, one column and oen 'group by' column?
>
> thanks ...
>
>
> ----
> Marc G. Fournier Hub.Org Networking Services
> (http://www.hub.org)
> Email: scrappy@hub.org Yahoo!: yscrappy ICQ:
> 7615664
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose an index scan if your
> joining column's datatypes do not match
>
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To: pgsql-sql@postgresql.org
Cc: gweaver@shaw.ca, scrappy@postgresql.org
Subject: Re: PL/PgSQL - returning multiple columns ...
In-Reply-To: <00c701c50978$f01c9e20$6400a8c0@Dell4500>
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