don't try to calculate lengths of non-LineStrings (which fails ofc)
don't try to calculate lengths of non-LineStrings (which fails ofc)

hotosm/osm-analytics,ekastimo/osm-analytics-fsp,ekastimo/osm-analytics-fsp,hotosm/osm-analytics,hotosm/osm-analytics,ekastimo/osm-analytics-fsp