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Re: Rtree circle ops

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Tatsuo Ishii <ishii(at)sraoss(dot)co(dot)jp>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Rtree circle ops
Date: 2006-08-28 22:16:01
Message-ID: 19146.1156803361@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
Tatsuo Ishii <ishii(at)sraoss(dot)co(dot)jp> writes:
>> Tatsuo Ishii <ishii(at)sraoss(dot)co(dot)jp> writes:
>>> Is there any reason for Rtree circle ops not being included in
>>> PostgreSQL?
>> 
>> rtree is going away (has gone away in HEAD awhile ago, in fact).

> I know. I just want to make sure that there's any technical reason it
> had not been supported for long time. 

AFAIR, the code simply wasn't there before 8.1.  I threw in an opclass
definition for circles while adding the rtree-equivalent opclasses
to GIST, because the use case for it was pretty obvious
(distance-to-a-point type queries).  We could have added the same
opclass to rtree at the same time, but I saw no point given that we
were planning to drop rtree in the next release cycle.

> BTW, I seems there are some users who are willing to continue to use
> Rtree. 

It's a bit late to be objecting to that decision.

			regards, tom lane

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