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To: Giorgio Valoti <giorgio_v@mac.com>
cc: pgsql-performance@postgresql.org
Subject: Re: Views and functions returning sets of records 
In-reply-to: <6A737ADC-2A11-4A01-8ACE-C439E4297273@mac.com> 
References: <6A737ADC-2A11-4A01-8ACE-C439E4297273@mac.com>
Comments: In-reply-to Giorgio Valoti <giorgio_v@mac.com>
	message dated "Sat, 22 Mar 2008 15:01:50 +0100"
Date: Sat, 22 Mar 2008 12:33:59 -0400
Message-ID: <29705.1206203639@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
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Giorgio Valoti <giorgio_v@mac.com> writes:
> maybe it’s a naive question but I was wondering if there is any  
> difference, from a performance point of view, between a view and a  
> function performing the same task,

Yes.  Usually the view will win.

			regards, tom lane