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From: Michael Fuhr <mike@fuhr.org>
To: Jim C. Nasby <jnasby@pervasive.com>
Cc: Ruben Rubio Rey <ruben@rentalia.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Array performance
Date: Fri, 24 Mar 2006 06:32:53 -0700
Message-ID: <20060324133252.GA22688@winnie.fuhr.org> (raw)
In-Reply-To: <20060324130619.GF90527@pervasive.com>
References: <200603170625.k2H6PJ926955@pillette.com>
	<1143112188.2810.27.camel@theo-laptop.int.coza.net.za>
	<20060323132448.GB4881@surnet.cl>
	<4423E90E.2090607@rentalia.com>
	<20060324125245.GB90527@pervasive.com>
	<4423EDA9.3090502@rentalia.com>
	<20060324130619.GF90527@pervasive.com>

On Fri, Mar 24, 2006 at 07:06:19AM -0600, Jim C. Nasby wrote:
> On Fri, Mar 24, 2006 at 02:01:29PM +0100, Ruben Rubio Rey wrote:
> > mmm ... i have read in postgres documentation that null values on arrays 
> > are not supported ...
> 
> Damn, you're right. Another reason I tend to stay away from them...

8.2 will support NULL array elements.

http://archives.postgresql.org/pgsql-committers/2005-11/msg00385.php
http://developer.postgresql.org/docs/postgres/arrays.html

test=> SELECT '{1,2,NULL,3,4}'::integer[];
      int4      
----------------
 {1,2,NULL,3,4}
(1 row)

-- 
Michael Fuhr



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