Tatsuo Ishii <ishii@sraoss.co.jp> writes:
>> Tatsuo Ishii <ishii@sraoss.co.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