Mark, > I think there are two things to ask here: firstly, when you say that you > were trying out the new ST_Union() in 1.4, does that mean that your > query worked in 1.3?
I didn't try it in 1.3. The task came after 1.4. > And secondly, which version of GEOS are you using? > ( SELECT postgis_full_version(); ) Good point. "POSTGIS="1.4.0" GEOS="3.1.1-CAPI-1.6.0" PROJ="Rel. 4.6.1, 21 August 2008" USE_STATS" S. -- 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. Website: www.spatialdbadvisor.com Email: si...@spatialdbadvisor.com Voice: +61 362 396397 Mobile: +61 418 396391 Skype: sggreener Longitude: 147.20515 (147° 12' 18" E) Latitude: -43.01530 (43° 00' 55" S) NAC:W80CK 7SWP3 _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users