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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andrea Arcangeli <andrea@cpushare.com>
Cc: Greg Stark <gsstark@mit.edu>
Cc: pgsql-performance@postgresql.org
Subject: Re: NOT LIKE much faster than LIKE?
Date: Tue, 10 Jan 2006 10:46:53 -0500
Message-ID: <152.1136908013@sss.pgh.pa.us> (raw)
In-Reply-To: <20060110152720.GL15897@opteron.random>
References: <20060110014447.GB18474@opteron.random>
	<24021.1136858688@sss.pgh.pa.us>
	<20060110022303.GA20168@opteron.random>
	<24372.1136861684@sss.pgh.pa.us>
	<20060110034721.GC20168@opteron.random>
	<87y81oyv6x.fsf@stark.xeocode.com>
	<20060110152720.GL15897@opteron.random>

Andrea Arcangeli <andrea@cpushare.com> writes:
> There's only one preempt near the end, not sure if it would work?

Not with that data, but maybe if you increased the statistics target for
the column to 100 or so, you'd catch enough values to get reasonable
results.

			regards, tom lane



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