What version of postgreSQL is required?
Thanks!
Bruce
Paul Ramsey wrote:
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.
P.
On Mon, Feb 2, 2009 at 10:40 AM, Paul Ramsey <[email protected]> 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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