From: Stephen Byers <stephenabyers@yahoo.com>
To: Steinar H. Gunderson <sgunderson@bigfoot.com>
To: pgsql-performance@postgresql.org
Subject: Re: why is bitmap index chosen for this query?
Date: Thu, 18 May 2006 13:26:26 -0700 (PDT)
Message-ID: <20060518202626.50897.qmail@web30713.mail.mud.yahoo.com> (raw)
In-Reply-To: <20060518201614.GA8640@uio.no>
You may be comparing the values to Tom's suggestion to bump up work_mem. Take a look at the original posting (Total runtime: 777208.041 ms for the bitmap scan)
-Steve
"Steinar H. Gunderson" <sgunderson@bigfoot.com> wrote:
On Thu, May 18, 2006 at 12:53:16PM -0700, Stephen Byers wrote:
> Yes, here are the runtimes for the repeated query.
> Total runtime: 748716.750 ms
> Total runtime: 749170.934 ms
> Total runtime: 744113.594 ms
> Total runtime: 746314.251 ms
> Total runtime: 742083.732 ms
With which options enabled? This isn't even close to any of the three times
you already posted.
/* Steinar */
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To: pgsql-performance@postgresql.org
Cc: stephenabyers@yahoo.com, sgunderson@bigfoot.com
Subject: Re: why is bitmap index chosen for this query?
In-Reply-To: <20060518202626.50897.qmail@web30713.mail.mud.yahoo.com>
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