From: Bart Degryse <Bart.Degryse@indicator.be>
To: Jyoti Seth <jyotiseth2001@gmail.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: postgresql function not accepting null valuesinselect statement
Date: Mon, 25 Feb 2008 09:05:07 +0100
Message-ID: <47C284BF.A3DD.0030.0@indicator.be> (raw)
In-Reply-To: <002401c8776e$17698b80$463ca280$@com>
References: <001501c8752d$391c8e50$ab55aaf0$@com>
<001a01c87534$84eea280$8ecb e780$@com>
<47BEA582.A3DD.0030.0@indicator.be>
<200802220830.56917.jfabiani@yolo.com>
<002401c8776e$17698b80$463ca280$@com>
In the documentation "IS NOT DISTINCT FROM" only appears in version 8.2
The 8.0 and 8.1 documentation only mentions "IS DISTINCT FROM".
http://www.postgresql.org/docs/8.2/static/functions-comparisons.htmlhttp://www.postgresql.org/docs/8.1/static/functions-comparisons.htmlhttp://www.postgresql.org/docs/8.0/static/functions-comparisons.html
I haven't tried it, but probably replacing
WHERE f.statecd IS NOT DISTINCT FROM p_statecd)
with
WHERE not(f.statecd IS DISTINCT FROM p_statecd))
will do the same.
>>> "Jyoti Seth" <jyotiseth2001@gmail.com> 2008-02-25 6:20 >>>
I have tried this, but it is showing following error:
ERROR: syntax error at or near "DISTINCT"
SQL state: 42601
Thanks,
Jyoti
-----Original Message-----
From: pgsql-sql-owner@postgresql.org [mailto:pgsql-sql-owner@postgresql.org]
On Behalf Of johnf
Sent: Friday, February 22, 2008 10:01 PM
To: pgsql-sql@postgresql.org
Subject: Re: [SQL] postgresql function not accepting null values inselect
statement
On Friday 22 February 2008 01:35:47 am Bart Degryse wrote:
> Can you try this...
>
> CREATE OR REPLACE FUNCTION getfunctionaries(p_statecd integer)
> RETURNS SETOF t_functionaries AS
> $BODY$
> DECLARE
> rec t_functionaries%ROWTYPE;
> BEGIN
> FOR rec IN (
> SELECT f.functionaryid, f.category, f.description
> FROM functionaries f
> WHERE f.statecd IS NOT DISTINCT FROM p_statecd)
> LOOP
> return next rec;
> END LOOP;
> return;
> END;
> $BODY$
> LANGUAGE 'plpgsql' VOLATILE;
>
a newbie question. Could you explain why yours works? I don't understand
how
it works if p_statecd = NULL
--
John Fabiani
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To: pgsql-sql@postgresql.org
Cc: Bart.Degryse@indicator.be, jyotiseth2001@gmail.com
Subject: Re: postgresql function not accepting null valuesinselect statement
In-Reply-To: <47C284BF.A3DD.0030.0@indicator.be>
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