[OSM-dev] invalid geometry in planet_polygon
Stephan Knauss
osm at stephans-server.de
Tue Aug 24 00:09:42 BST 2010
Hi,
I tried some queries filtered with st_within and got a geos exception.
I think it's caused by some geometries not being valid.
Database is a standard mapnik import done by osm2pgsql.
Postgis reports
NOTICE: Self-intersection at or near point 1.1195e+07 2.01783e+06
This is relation 227259
Is this a problem with the import of osm2pgsql or a problem with the data?
I used this query to detect invalid geometries. There are more...
select osm_id from planet_osm_polygon WHERE NOT st_isvalid(way)
A dump of the invalid geometries of the planet is available on my server:
http://downloads.osm-tools.org/invalid_geometry.csv
Stephan
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