Date: Mon, 16 Aug 2004 07:40:04 -0500
From: George Weaver <gweaver@shaw.ca>
Subject: Re: Returning A Varchar From A Function
To: Richard Hurst <richard.hurst@kirklees.gov.uk>,
	pgsql-sql@postgresql.org
Message-id: <004101c4838e$29348900$6400a8c0@Dell4500>
MIME-version: 1.0
Content-type: text/plain; charset=iso-8859-1
Content-transfer-encoding: 7bit
References: <s11b40cb.055@kirklees.gov.uk>

Hi Richard,

What happens if you just do:

where trim(status) = trim($1)

Regards,
George

----- Original Message ----- 
From: "Richard Hurst" <richard.hurst@kirklees.gov.uk>
To: <pgsql-sql@postgresql.org>
Sent: Thursday, August 12, 2004 4:04 AM
Subject: [SQL] Returning A Varchar From A Function


> Hi 
> 
> this has been puzzling me for a few days now
> 
> I have created a function that I want to use in a database to select a
> value from a table based on the value passed in.
> The table is fairly simple
> CREATE TABLE public.feeder_next_status
> (
>   status varchar NOT NULL,
>   previous_status varchar,
>   next_status varchar
> ) WITH OIDS;
> 
> The function is defined as 
> 
> -- Function: public.spgetnextstatus(varchar)
> 
> -- DROP FUNCTION public.spgetnextstatus(varchar);
> 
> CREATE OR REPLACE FUNCTION public.spgetnextstatus(varchar)
> RETURNS varchar AS
> '
> select cast(next_status as varchar) 
> from feeder_next_status 
> where trim(status) = trim(\'$1\')
> order by next_status;'
> LANGUAGE 'sql' STABLE;
> 
> 
> However when i run the query 
> select spgetnextstatus('NEW')
> in pgadmin
> the dataoutput shows two columns
> the row column shows a row number of '1' and the column header
> spgetnextstatus(varchar) shows blank
> 
> I have tested the equivalent sql in the pgadmin query and it works
> fine.
> 
> Hoping someone can point me inthe right direction
> 
> 
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 2: you can get off all lists at once with the unregister command
>     (send "unregister YourEmailAddressHere" to majordomo@postgresql.org)
>