Heads up: In Mapnik trunk I've committed a change that enables the reporting of errors and subsequent throw of a mapnik::datasource_exception from libpq if queries fail.
The goal is to avoid the headaches and guesswork currently required for debugging PostGIS datasources that returning no features or blank maps because one of any of the multiple queries to either fetch metadata from the geometry_columns or the actual features have failed silently. In short if you write broken SQL or have other invalid PostGIS parameters your stylesheet parsing will now die violently with an explicit error instead of ignoring you like before. Feel free to comment or re-open http://trac.mapnik.org/ticket/363 if you see ways to improve this. Dane _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
