+ -- 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 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', 'side_stream') AND substring(relation.members[i],1,1) = 'w' THEN
+ --DEBUG: RAISE WARNING 'waterway parent %, child %/%', NEW.osm_id, i, relation.parts[i];
+ FOR location IN SELECT * FROM placex
+ WHERE osm_type = 'W' and osm_id = substring(relation.members[i],2,200)::bigint
+ and class = NEW.class and type = NEW.type
+ and ( relation.members[i+1] != 'side_stream' or NEW.name->'name' = name->'name')
+ LOOP
+ UPDATE placex SET linked_place_id = NEW.place_id WHERE place_id = location.place_id;
+ END LOOP;
+ END IF;
+ END LOOP;
+ END LOOP;
+ END IF;
+