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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Joe <dev@freedomcircle.net>
Cc: Alvaro Herrera <alvherre@commandprompt.com>
Cc: George Pavlov <gpavlov@mynewplace.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: huge disparities in =/IN/BETWEEN performance
Date: Thu, 08 Feb 2007 23:24:44 -0500
Message-ID: <14627.1170995084@sss.pgh.pa.us> (raw)
In-Reply-To: <1170994335.697.55.camel@pampa>
References: <8C5B026B51B6854CBE88121DBF097A86815F42@ehost010-33.exch010.intermedia.net>
	<7377.1170986068@sss.pgh.pa.us>
	<8C5B026B51B6854CBE88121DBF097A86815F81@ehost010-33.exch010.intermedia.net>
	<20070209021414.GU24069@alvh.no-ip.org>
	<14273.1170993005@sss.pgh.pa.us>
	<1170994335.697.55.camel@pampa>

Joe <dev@freedomcircle.net> writes:
> Are you saying the planner is datatype-agnostic

Certainly, but your other concerns don't follow from that.  The issue at
hand here is whether it's worth expending cycles on every query to try
to detect a situation that only holds for a few.

			regards, tom lane

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