[postgis-users] PostGIS Contains / Intersects / Within Performance

[Paul Ramsey]

I don't know, try and tell us! :)

P

On Jan 25, 2008, at 7:58 PM, Bruce Rindahl wrote:

> Does the SVN of GEOS compile under MingW??
> Bruce
>
> -----Original Message-----
> From: postgis-users-bounces at postgis.refractions.net
> [mailto:postgis-users-bounces at postgis.refractions.net] On Behalf Of  
> Paul
> Ramsey
> Sent: Friday, January 25, 2008 11:46 AM
> To: PostGIS Users Discussion
> Subject: [postgis-users] PostGIS Contains / Intersects / Within  
> Performance
>
> I'd love to see some people here with large data volumes who do
> contains/intersects/within tests do some testing of the new postgis/
> geos prepared geometry code...
>
> To test the new functions
>
> - install the svn snapshot of GEOS
> - install the svn snapshot of PostGIS
> - use the ST_ContainsPrepared(g1,g2) predicate for the testing
>
> We've seen performance improvements of between 5 and 100 times
> faster.  The bigger and more complicated your test geometries are,
> the faster it should be.
>
> Thanks,
>
> P.
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