[postgis-users] Re: Test the Future (GEOS 3.1RC2)

Paul Ramsey pramsey at opengeo.org
Tue Feb 3 07:52:09 PST 2009

Are you busy testing the new code? I hope you are!

Want a place in history? I'm looking for a few "testimonials" for the
final release announcement when 1.4 comes out, so compare your
production queries on Pg1.3/G3.0 with Pg1.4/G3.1 and report back on
how much faster things are.


On Mon, Feb 2, 2009 at 10:40 AM, Paul Ramsey <pramsey at opengeo.org> wrote:
> PostGIS users,
> I've been blogging over the past several months about some big
> performance improvements in PostGIS, prepared geometries
> <http://blog.cleverelephant.ca/2008/10/postgis-performance-prepared-geometry.html>
> and cascaded union
> <http://blog.cleverelephant.ca/2009/01/must-faster-unions-in-postgis-14.html>,
> which have been brought over from JTS over the past year.
> What both these features have in common is that they require GEOS 3.1.
>  We have begun a Release Candidate series for GEOS, and now need
> testing to ensure it is ready for full release.
> In order to try these features, you will need.
> - PostGIS SVN snap (aka 1.4):
> http://postgis.refractions.net/download/postgis-1.4.0SVN.tar.gz
> - GEOS 3.1RC2: http://download.osgeo.org/geos/geos-3.1.0rc2.tar.bz2
> First compile and install GEOS, then PostGIS.
> The functions that have been sped up include:
> ST_Union(geometry) aggregate
> ST_Intersects()
> ST_Contains()
> ST_Within()
> ST_Covers()
> Thanks,
> Paul

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