Re: knngist - 0.8 - Mailing list pgsql-hackers

From Tom Lane
Subject Re: knngist - 0.8
Date
Msg-id 19342.1293392483@sss.pgh.pa.us
Whole thread Raw
In response to Re: knngist - 0.8  (Hitoshi Harada <umi.tanuki@gmail.com>)
Responses Re: knngist - 0.8  (Robert Haas <robertmhaas@gmail.com>)
List pgsql-hackers
Hitoshi Harada <umi.tanuki@gmail.com> writes:
> Catching up tonight, I wonder I could propose to add ordering
> operators in btree, not in gist, for basic types.

I thought about that for a bit while working on the knngist patch, but
couldn't really see any useful application.  In particular, I don't see
a way to shoehorn + and - in there as ordering operators.  They don't
match the structure.  The RANGE problem wants to add operators that are
somehow related to a btree's operators, but they're not related in the
way that knngist uses.
        regards, tom lane


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