From: Richard Huxton <dev@archonet.com>
To: Ray Madigan <ray@madigans.org>
Cc: Pgsql-Sql <pgsql-sql@postgresql.org>
Subject: Re: LOOP?
Date: Thu, 17 Feb 2005 18:05:54 +0000
Message-ID: <4214DD02.2030207@archonet.com> (raw)
In-Reply-To: <AEEJIDLCICLNLPOJHFEEAEFDFCAA.ray@madigans.org>
References: <AEEJIDLCICLNLPOJHFEEAEFDFCAA.ray@madigans.org>
Ray Madigan wrote:
> I am writing a trigger to inspect a row of a temporary table to determine if
> the row has any null columns, I will return as soon as I find a null
> column. I ran across this in the manual and It seems like I could use
>
> The FOR-IN-EXECUTE statement is another way to iterate over rows:
> [<<label>>]
> FOR record_or_row IN EXECUTE text_expression LOOP
> statements
> END LOOP;
>
> postgresql has a RECORD type which is an abstract row.
>
> Does it have any fields to tell the length?
>
> Does it have an accessor function like new.element(index};
Short answer - no to the above.
You'll not find what you want in plpgsql, perhaps look at pltcl or
plperl for this sort of thing.
--
Richard Huxton
Archonet Ltd
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To: pgsql-sql@postgresql.org
Cc: dev@archonet.com, ray@madigans.org
Subject: Re: LOOP?
In-Reply-To: <4214DD02.2030207@archonet.com>
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