Re: Index on points

Поиск
Список
Период
Сортировка
От Holger Klawitter
Тема Re: Index on points
Дата
Msg-id 200406081630.57475.lists@klawitter.de
обсуждение исходный текст
Ответ на Re: Index on points  (Bruno Wolff III <bruno@wolff.to>)
Список pgsql-general
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi!

> > SELECT p FROM tbl WHERE (p <-> point(0,0)) < 10;
> You want to create a box that includes all points that might match
> and use that to do an index search (using an rtree index) and then
> check that the distance is really less than whatever.

Thanks for the hint!
I was just too confused about the lack of point operators to think about
alternatives...

Mit freundlichem Gruß / With kind regards
    Holger Klawitter
- --
lists <at> klawitter <dot> de
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.2 (GNU/Linux)

iD8DBQFAxc2h1Xdt0HKSwgYRAl47AJ0XF49Mr8OgPSwM5uULTOcp3nGVAgCfWWp9
NBrsrP1Fnu2+UCo63niQzjQ=
=/7qF
-----END PGP SIGNATURE-----


В списке pgsql-general по дате отправления:

Предыдущее
От: Jan Wieck
Дата:
Сообщение: Re: [HACKERS] The pgreplication project
Следующее
От: Bruce Momjian
Дата:
Сообщение: Re: [HACKERS] The pgreplication project