I'm trying to Aggregate\Dissolve a set of adjacent, but not touching polygons in Postgis. The geometries were created editing the Postgis table in QGIS created, with snapping and avoid overlap in the layer.
I used ST_Union like this: SELECT ST_Union(the_geom) FROM table; Small gaps similar to lines appear in the result. This happens when the adjacent polygons do not share the exact same vertices. [image: Inline image 2] Is there a way to eliminate this "gaps" or "small angles" within Postgis? I know that v.clean in GRASS can eliminate small angles, and correct topology, but that would mean I needed to copy the features to GRASS, correct them and copy it back to Postgis. Thanks in advance, Alexandre Neto
<<image.jpeg>>
_______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
