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

[Obe, Regina]

You should be able to use 8.2 and above.  I've been testing on 8.3 and
8,4.
 
(I think we may have scrapped support for 8.1 in 1.4 but can't remember)

________________________________

From: postgis-users-bounces at postgis.refractions.net
[mailto:postgis-users-bounces at postgis.refractions.net] On Behalf Of
Bruce Rindahl
Sent: Tuesday, February 03, 2009 11:49 AM
To: PostGIS Users Discussion
Subject: Re: [postgis-users] Re: Test the Future (GEOS 3.1RC2)


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
<pramsey at opengeo.org> <mailto: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-geom
etry.html>
<http://blog.cleverelephant.ca/2008/10/postgis-performance-prepared-geom
etry.html> 
		and cascaded union
	
<http://blog.cleverelephant.ca/2009/01/must-faster-unions-in-postgis-14.
html>
<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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