| From: | Oleg Bartunov <oleg(at)sai(dot)msu(dot)su> |
|---|---|
| To: | Jan-Benedict Glaw <jbglaw(at)lug-owl(dot)de> |
| Cc: | Andrew Dunstan <andrew(at)dunslane(dot)net>, Dave Cramer <pg(at)fastcrypt(dot)com>, karpov(dot)sv(at)gmail(dot)com, Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: pgsphere |
| Date: | 2012-01-10 20:43:25 |
| Message-ID: | Pine.LNX.4.64.1201110042020.19097@sn.sai.msu.ru |
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| Lists: | pgsql-hackers |
On Tue, 10 Jan 2012, Jan-Benedict Glaw wrote:
> On Sun, 2012-01-08 22:19:53 +0400, Oleg Bartunov <oleg(at)sai(dot)msu(dot)su> wrote:
>> pgsphere now could benefit very much from our KNNGiST feature. This is
>> number one development from my point of view. I and Teodor have no
>> time to work on pgsphere, sorry. But, there are some astronomers I'm working
>> with, who can take part in this. Sergey Karpov has done extensive benchmarks
>> of q3c, rtree and pgsphere and found the latter still has some benefits
>> in some workload, so we are interesting in development.
>
> Could the PostGIS stuff be abused for stellar coordinates?
There is no principal difference between celestial sphere and earth,
it's a matter of conversion between coordinates.
Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru),
Sternberg Astronomical Institute, Moscow University, Russia
Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83
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