-- waterway ways are linked when they are part of a relation and have the same class/type
IF NEW.osm_type = 'R' and NEW.class = 'waterway' THEN
- FOR relation IN select * from planet_osm_rels r where r.id = NEW.osm_id
+ FOR relation IN select * from planet_osm_rels r where r.id = NEW.osm_id and r.parts != array[]::bigint[]
LOOP
FOR i IN 1..array_upper(relation.members, 1) BY 2 LOOP
IF relation.members[i+1] in ('', 'main_stream') AND substring(relation.members[i],1,1) = 'w' THEN