[postgis-users] ST_Union (8.4) and TopologyException
simon at spatialdbadvisor.com
Fri Aug 7 22:37:40 PDT 2009
To those who asked for a test case.
I prepared and sent a test case to Regina to ensure it was a good test set before sending it on to the discussion list.
Regina tested it and reported to me that:
"I tested this against GEOS 3.2 SVN and it worked. Against GEOS 3.1.1 it doesn't."
I was running GEOS 3.1.1 as part of the standard PostGIS 1.4 on PostgreSQL 8.4 combo.
Regina provided me with the compiled GEOS 3.2 libraries:
"POSTGIS="1.4.0" GEOS="3.2.0-CAPI-1.6.0" PROJ="Rel. 4.6.1, 21 August 2008" USE_STATS"
I can confirm that my data is now successfully processed by PostGIS's ST_Union though it isn't all that fast:
"Query returned successfully with no result in 5011922 ms." = 1hr 23min which is pretty slow.
Any idea why?
SpatialDB Advice and Design, Solutions Architecture and Programming,
Oracle Database 10g Administrator Certified Associate; Oracle Database 10g SQL Certified Professional
Oracle Spatial, SQL Server, PostGIS, MySQL, ArcSDE, Manifold GIS, FME, Radius Topology and Studio Specialist.
39 Cliff View Drive, Allens Rivulet, 7150, Tasmania, Australia.
Email: simon at spatialdbadvisor.com
Voice: +61 362 396397
Mobile: +61 418 396391
Longitude: 147.20515 (147° 12' 18" E)
Latitude: -43.01530 (43° 00' 55" S)
More information about the postgis-users