Received: from localhost (maia-2.hub.org [200.46.204.187])
	by postgresql.org (Postfix) with ESMTP id 4AA839FB2DC
	for <pgsql-sql-postgresql.org@postgresql.org>;
	Tue, 20 Mar 2007 23:51:57 -0300 (ADT)
Received: from postgresql.org ([200.46.204.71])
	by localhost (mx1.hub.org [200.46.204.187]) (amavisd-new, port 10024)
	with ESMTP id 98335-06-2 for <pgsql-sql-postgresql.org@postgresql.org>;
	Tue, 20 Mar 2007 23:51:44 -0300 (ADT)
X-Greylist: delayed 02:59:57.194155 by SQLgrey-1.7.4
Received: from CORREO.correolux.com.mx
	(customer-200-79-53-218.uninet-ide.com.mx [200.79.53.218])
	by postgresql.org (Postfix) with ESMTP id D33C09FB2F1
	for <pgsql-sql@postgresql.org>; Tue, 20 Mar 2007 23:51:52 -0300 (ADT)
Received: from [192.168.7.58] ([192.168.7.58]) by correolux.com.mx with
	MailEnable ESMTP; Tue, 20 Mar 2007 17:59:59 -0600
Message-ID: <46007447.8010202@correolux.com.mx>
Date: Tue, 20 Mar 2007 17:54:47 -0600
From: Judith <jaltamirano@correolux.com.mx>
User-Agent: Mozilla Thunderbird 1.0.2 (X11/20050317)
X-Accept-Language: es-es, es
MIME-Version: 1.0
To: pgsql-sql@postgresql.org
Subject: Substitute 
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-Virus-Scanned: Maia Mailguard 1.0.1
X-Spam-Status: No, hits=0.136 tagged_above=0 required=5 tests=BAYES_50,
	FORGED_RCVD_HELO
X-Spam-Level: 
X-Archive-Number: 200703/276
X-Sequence-Number: 27914

Hello everybody....

somebody knows, how I can substitute in a query if a field contains a 
character that I want to be shown with other character?

 for example if I have a \n I want to shows me a ~ in the result of the 
select

thanks in advanced!!