Re: compress method for spgist - 2

Поиск
Список
Период
Сортировка
От Paul Ramsey
Тема Re: compress method for spgist - 2
Дата
Msg-id CACowWR2LhVi4JHEVV=PYzLSyBfnpMd5+bhr2R8t5vzs0o79Ndw@mail.gmail.com
обсуждение исходный текст
Ответ на Re: compress method for spgist - 2  (Heikki Linnakangas <hlinnakangas@vmware.com>)
Ответы Re: compress method for spgist - 2  (Heikki Linnakangas <hlinnaka@iki.fi>)
Список pgsql-hackers
On Wed, Feb 25, 2015 at 6:13 AM, Heikki Linnakangas
<hlinnakangas@vmware.com> wrote:
> In the original post on this, you mentioned that the PostGIS guys planned to
> use this to store polygons, as bounding boxes
> (http://www.postgresql.org/message-id/5447B3FF.2080406@sigaev.ru). Any idea
> how would that work?

Poorly, by hanging boxes that straddled dividing lines off the parent
node in a big linear list. The hope would be that the case was
sufficiently rare compared to the overall volume of data, to not be an
issue. Oddly enough this big hammer has worked in other
implementations at least passable well
(https://github.com/mapserver/mapserver/blob/branch-7-0/maptree.c#L261)

P.



В списке pgsql-hackers по дате отправления:

Предыдущее
От: Mike Rylander
Дата:
Сообщение: Re: xpath changes in the recent back branches
Следующее
От: Marco Nenciarini
Дата:
Сообщение: Re: File based Incremental backup v8