Received: from localhost (maia-4.hub.org [200.46.204.183])
	by postgresql.org (Postfix) with ESMTP id F1C5B9FA182
	for <pgsql-sql-postgresql.org@postgresql.org>;
	Wed,  6 Dec 2006 11:02:30 -0400 (AST)
Received: from postgresql.org ([200.46.204.71])
	by localhost (mx1.hub.org [200.46.204.183]) (amavisd-new, port 10024)
	with ESMTP id 34246-01 for <pgsql-sql-postgresql.org@postgresql.org>;
	Wed,  6 Dec 2006 11:02:25 -0400 (AST)
X-Greylist: from auto-whitelisted by SQLgrey-1.7.4
Received: from sss.pgh.pa.us (sss.pgh.pa.us [66.207.139.130])
	by postgresql.org (Postfix) with ESMTP id 1A17B9FA265
	for <pgsql-sql@postgresql.org>; Wed,  6 Dec 2006 11:02:24 -0400 (AST)
Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1])
	by sss.pgh.pa.us (8.13.6/8.13.6) with ESMTP id kB6F2GAG025786;
	Wed, 6 Dec 2006 10:02:16 -0500 (EST)
To: "Rajesh Kumar Mallah" <mallah.rajesh@gmail.com>
cc: pgsql-sql@postgresql.org
Subject: Re: Proper way of iterating over the column names in a trigger
	function.
In-reply-to: <a97c77030612060430m557aa882m7fa96c43cfd66b01@mail.gmail.com> 
References: <a97c77030612060430m557aa882m7fa96c43cfd66b01@mail.gmail.com>
Comments: In-reply-to "Rajesh Kumar Mallah" <mallah.rajesh@gmail.com>
	message dated "Wed, 06 Dec 2006 18:00:13 +0530"
Date: Wed, 06 Dec 2006 10:02:16 -0500
Message-ID: <25785.1165417336@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
X-Virus-Scanned: Maia Mailguard 1.0.1
X-Archive-Number: 200612/69
X-Sequence-Number: 27025

"Rajesh Kumar Mallah" <mallah.rajesh@gmail.com> writes:
> what is the proper way for iterating over column names of a table using
> SPI_* functions.

You need to pay attention to the attisdropped field of the TupleDesc
entries.

			regards, tom lane