Re: nearest match
От | Larry Rosenman |
---|---|
Тема | Re: nearest match |
Дата | |
Msg-id | 24770000.1047619117@lerlaptop.lerctr.org обсуждение исходный текст |
Ответ на | Re: nearest match ("Ryan Orth" <ryan@seahat.com>) |
Список | pgsql-sql |
--On Thursday, March 13, 2003 11:22:21 -0600 Ryan Orth <ryan@seahat.com> wrote: >> Ryan wrote: > Hot damn! thats exactly what I needed. I imagine I would only be > comparing the distance of 50 points at any given time (about the max > number of reference numbers on any given image) so its mighty quick. > (184 points takes 1.80 msec to check) > > I didn't even know about those geometric operators (I find new stuff every > day I swear). Are they SQL standard or postgres specific? postgres specific. There are a WHOLE bunch of geometric operators and functions in PG. LER -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 972-414-9812 E-Mail: ler@lerctr.org US Mail: 1905 Steamboat Springs Drive, Garland, TX 75044-6749
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