Anyone get an error similar to this when unioning a bunch of polygons with st_union?
NOTICE: TopologyException: no outgoing dirEdge found (-149.073,61.6101,61.6101) ERROR: GEOS union() threw an error! I must say before I get into the details only a few of you will read that portion that I've used postgis for a while now (since 1.1.5) and it is *PHENOMENAL*. I don't want my only posts to this list in that time frame to be negative -- can't tell you how much faster/better/intuitive I've found postgis over very expensive commercial alternatives :-). My query is similar to the following: SELECT st_multi(st_union(poly)) from (select ... (a bunch of polys) ... ) a; The subselect is operating on a fairly dynamic table, and I've gone months without any problems (with many different sets of polygons too) I tried st_isvalid() on all polygons returned from the subselect, and all are valid, and are all non-null... If I have duplicate (or close to duplicate) polygons returned, is that going to potentially screw up st_union()? I'm running Ubuntu server (x64) 8.04 LTS, and am using the packages for GEOS and postgis from their universe repo: postgis 1.3.3 libgeos 2.2.3 (postgresql 8.3) Thanks for the help! -Mark _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
