[postgis-users] PostGIS 1.3.3 on Windows XP Unstable

[Obe, Regina]

Mike,

PostGIS 1.3.3 has been pretty stable for me on Windows XP, Windows 2003 and Red Hat EL Linux.

Though I can't say I have ever tried using disjoint since there are much more efficient ways of checking for disjointedness than using disjoint.  Buffer(..0) I have used a fair amount though and haven't run into any issues.  Though I have had some issues when using - values for buffer.

Which version of Geos are you running? I suppose you could be running an unstable version of Geos.  The latest stable release of geos is 3.0.0 which you can determine if you are running or not with the command.

select postgis_full_version();


3.1 and 3.0.0 rc 3 and before I believe are somewhat unstable.  I think 3.0.0 rcs might have a bug with start point and end_point which was fixed in 3.0.0

Hope that helps,
Regina


-----Original Message-----
From: postgis-users-bounces at postgis.refractions.net on behalf of Bresnahan, Mike
Sent: Mon 8/11/2008 1:02 PM
To: postgis-users at postgis.refractions.net
Subject: [postgis-users] PostGIS 1.3.3 on Windows XP Unstable
 
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I am trying to use PostGIS 1.3.3 with PostgreSQL 8.3 on Windows XP SP2
and I am having stability problems. 

The first problem I ran into is that calling buffer(the_geom,0) on an
invalid geometry causes the server to crash with a blown assertion
("pts->size() > 1"). This problem was reported here:

    http://trac.osgeo.org/geos/ticket/187

The second problem I ran into is a crash when I call st_disjoint() on
certain geometries. I have been unable to get any further information
about this crash because the Visual Studio 2008 debugger refuses to
attach to the crashing process with the message "Invalid security
context". I tried running postgres.exe as a non-service under my own
user ID, but I still received the same error. 

Is PostGIS 1.3.3 known to be very unstable on Windows XP? Might I have
better luck on Linux? I don't have a Linux box available to me atm, so
it would take some effort to test this question.

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