Re: Using multidimensional indexes in ordinal queries

From: Alexander Korotkov <aekorotkov(at)gmail(dot)com>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Thom Brown <thombrown(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Using multidimensional indexes in ordinal queries
Date: 2010-06-22 19:35:45
Message-ID: AANLkTimVLJxvr5kcQFCiRHWBqQkSwyLZj-ZD-HjN_rMk@mail.gmail.com
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On Tue, Jun 22, 2010 at 1:58 AM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:

> It doesn't? I didn't think it was making any assumptions about the
> ordering data type beyond the fact that it had a default btree
> opclass.
>
Actually, the return type of consistent method was replaced by float8.
Negative values are used for "unconsistent" state. Non-negative values are
used for "consistent" and ordering.

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