Re: Strange cost computation?

From: Stephan Szabo <sszabo(at)megazone23(dot)bigpanda(dot)com>
To: Ives Landrieu <ives(dot)landrieu(at)ua(dot)ac(dot)be>
Cc: <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Strange cost computation?
Date: 2002-10-30 15:59:56
Message-ID: 20021030075807.L31345-100000@megazone23.bigpanda.com
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On 29 Oct 2002, Ives Landrieu wrote:

> Hi,
>
> Can anybody explain the following results when using EXPLAIN,
> one time with enable_seqscan=on and one time with enable_seqscan=off.
> What I don't understand is that the nodes created are the same
> (index scan, seq scan), but the costs differ.

Enable seq scan actually just sets a large cost disbenefit to seq scans.
Is alias96.STATUS indexed?

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