Re: External Sort performance patch

From: Simon Riggs <simon(at)2ndquadrant(dot)com>
To: pgsql-patches(at)postgresql(dot)org
Subject: Re: External Sort performance patch
Date: 2006-02-08 00:52:17
Message-ID: 1139359937.1258.243.camel@localhost.localdomain
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On Thu, 2006-01-26 at 00:33 +0000, Simon Riggs wrote:
> The enclosed patch substantially improves large sort performance, in the
> general case
>
> cvstip: elapsed 5693 sec, CPU 196 sec
> patch: elapsed 4132 sec, CPU 90 sec
>

Following patch implements matching sort cost calculations in the
planner in sort_cost()

This patch is in-addition to the previous patch.

Best Regards, Simon Riggs

Attachment Content-Type Size
sortcost.patch text/x-patch 3.7 KB

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