From: Mladen Gogala <mladen.gogala@vmsinfo.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: David Wilson <david.t.wilson@gmail.com>
Cc: Kenneth Marshall <ktm@rice.edu>
Cc: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: Postgres 9.0 has a bias against indexes
Date: Thu, 27 Jan 2011 12:00:06 -0500
Message-ID: <4D41A496.70205@vmsinfo.com> (raw)
In-Reply-To: <17268.1296146447@sss.pgh.pa.us>
References: <4D419214.8060003@vmsinfo.com>
<20110127154539.GE6475@aart.is.rice.edu>
<4D41959B.8020901@vmsinfo.com>
<AANLkTinjSQ4+56fZtDELXZ7uU49evc8U-Z0WV6U4FH6U@mail.gmail.com>
<17268.1296146447@sss.pgh.pa.us>
On 1/27/2011 11:40 AM, Tom Lane wrote:
> It is worth noting that EXPLAIN results should not be extrapolated
> to situations other than the one you are actually testing; for
> example, results on a toy-sized table cannot be assumed to apply to
> large tables.
Well, that's precisely what I tried. Bummer, I will have to copy a large
table over.
--
Mladen Gogala
Sr. Oracle DBA
1500 Broadway
New York, NY 10036
(212) 329-5251
www.vmsinfo.com
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To: pgsql-performance@postgresql.org
Cc: mladen.gogala@vmsinfo.com, tgl@sss.pgh.pa.us, david.t.wilson@gmail.com, ktm@rice.edu
Subject: Re: Postgres 9.0 has a bias against indexes
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