Hello,

You may want to have a look also at PgSphere
(http://pgfoundry.org/projects/pgsphere) and Q3C (http://q3c.sf.net)
which is actually a spherical indexing solution built specially for
PostgreSQL with the best performance among all other methods (even
within other databases).

Regards,
Ivan

On Wed, Apr 16, 2008 at 1:23 PM, Stefan Sturm
<stefan.s.sturm@googlemail.com> wrote:
> Hello,
>
> I have a lot of GeoData( Latitude and Longitude ) in my PostgreSQL Database.
> Is store them as numeric at this time.
> But now I want to access the data and want to have all Datasets around a
> Geographic point. eg: "within a radius of 5 km"...
>
> Is there a simple way to do something like this?
>
> Thanks for your Help,
> Stefan Sturm
>

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