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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Jim C. Nasby <decibel@decibel.org>
Cc: Dave Held <dave.held@arrayservicesgrp.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Sort and index
Date: Sat, 23 Apr 2005 01:00:40 -0400
Message-ID: <6536.1114232440@sss.pgh.pa.us> (raw)
In-Reply-To: <20050423030002.GY58835@decibel.org>
References: <49E94D0CFCD4DB43AFBA928DDD20C8F9026184B6@asg002.asg.local>
	<20050420004234.GX58835@decibel.org>
	<19631.1113966086@sss.pgh.pa.us>
	<20050420034041.GC58835@decibel.org>
	<20050423015404.GV58835@decibel.org>
	<4269.1114222086@sss.pgh.pa.us>
	<20050423030002.GY58835@decibel.org>

"Jim C. Nasby" <decibel@decibel.org> writes:
>> Feel free to propose better cost equations.

> Where would I look in code to see what's used now?

All the gold is hidden in src/backend/optimizer/path/costsize.c.

			regards, tom lane

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