Re: Design notes for EquivalenceClasses

From: Teodor Sigaev <teodor(at)sigaev(dot)ru>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Design notes for EquivalenceClasses
Date: 2007-01-18 15:59:56
Message-ID: 45AF997C.1080807@sigaev.ru
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> Note that a bitmap scan or multi-pass indexscan (OR clause scan) has NIL
> pathkeys since we can say nothing about the overall order of its result.

It's seems to me that multi-pass indexscan was removed after introducing bitmapscan.
--
Teodor Sigaev E-mail: teodor(at)sigaev(dot)ru
WWW: http://www.sigaev.ru/

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