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To: Richard Yen <dba@richyen.com>
cc: pgsql-performance@postgresql.org
Subject: Re: query plan with index having a btrim is different for strings of
	different length
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Comments: In-reply-to Richard Yen <dba@richyen.com>
	message dated "Wed, 10 Dec 2008 11:28:43 -0800"
Date: Wed, 10 Dec 2008 15:04:54 -0500
Message-ID: <6449.1228939494@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
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BTW, if your queries typically constrain both lastname and firstname,
it'd likely be worthwhile to make a 2-column index on
	lower(btrim(x_lastname)), lower(btrim(x_firstname))

			regards, tom lane