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Re: BUG #4926: too few pathkeys for mergeclauses

From: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
To:
Cc: Greg Stark <gsstark(at)mit(dot)edu>, Roman Kononov <kononov(at)ftml(dot)net>, pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #4926: too few pathkeys for mergeclauses
Date: 2009-07-17 08:56:51
Message-ID: 4A603CD3.7080606@enterprisedb.com (view raw or flat)
Thread:
Lists: pgsql-bugs
Heikki Linnakangas wrote:
> 2. make_inner_pathkeys_for_merge() should have created sort order (x, y,
> x) for the inner side.

On further thought, that would make no sense. Sort order (x, y) is
always equivalent to (x, y, x).

-- 
  Heikki Linnakangas
  EnterpriseDB   http://www.enterprisedb.com

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