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	Thu, 18 May 2006 13:26:26 PDT
Date: Thu, 18 May 2006 13:26:26 -0700 (PDT)
From: Stephen Byers <stephenabyers@yahoo.com>
Subject: Re: why is bitmap index chosen for this query?
To: "Steinar H. Gunderson" <sgunderson@bigfoot.com>,
	pgsql-performance@postgresql.org
In-Reply-To: <20060518201614.GA8640@uio.no>
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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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<div>You may be comparing the values to Tom's suggestion to bump up work_mem.&nbsp; Take a look at the original posting (Total runtime: 777208.041 ms for the bitmap scan)</div>  <div>&nbsp;</div>  <div>-Steve</div>  <div><BR><B><I>"Steinar H. Gunderson" &lt;sgunderson@bigfoot.com&gt;</I></B> wrote:</div>  <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">On Thu, May 18, 2006 at 12:53:16PM -0700, Stephen Byers wrote:<BR>&gt; Yes, here are the runtimes for the repeated query.<BR>&gt; Total runtime: 748716.750 ms<BR>&gt; Total runtime: 749170.934 ms<BR>&gt; Total runtime: 744113.594 ms<BR>&gt; Total runtime: 746314.251 ms<BR>&gt; Total runtime: 742083.732 ms<BR><BR>With which options enabled? This isn't even close to any of the three times<BR>you already posted.<BR><BR>/* Steinar */<BR>-- <BR>Homepage: http://www.sesse.net/<BR><BR>---------------------------(end of broadcast)---------------------------<BR>TIP 1: if
 posting/reading through Usenet, please send an appropriate<BR>subscribe-nomail command to majordomo@postgresql.org so that your<BR>message can get through to the mailing list cleanly<BR></BLOCKQUOTE><BR><p>
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