Ensure that postcode relations are used in addresses

Postcode nodes are normally thrown away as they only play
a role for computing artifical postcodes. However, if we
have a postcode area this still should take part of the
address.

Fixes #1330.

diff --git a/sql/functions.sql b/sql/functions.sql
index 73790353059a683cdfec0db2f101e1dbc5935f4e..8ecb8c2c1aa1da18a20d31afae360534127476c2 100644 (file)
--- a/sql/functions.sql
+++ b/sql/functions.sql
@@ -2318,6 +2318,7 @@ DECLARE
   searchhousename HSTORE;
   searchrankaddress INTEGER;
   searchpostcode TEXT;
+  postcode_isaddress BOOL;
   searchclass TEXT;
   searchtype TEXT;
   countryname HSTORE;
@@ -2325,6 +2326,8 @@ BEGIN
   -- The place ein question might not have a direct entry in place_addressline.
   -- Look for the parent of such places then and save if in for_place_id.
 
+  postcode_isaddress := true;
+
   -- first query osmline (interpolation lines)
   IF in_housenumber >= 0 THEN
     SELECT parent_place_id, country_code, in_housenumber::text, 30, postcode,
@@ -2441,7 +2444,10 @@ BEGIN
       searchcountrycode := location.country_code;
     END IF;
     IF location.type in ('postcode', 'postal_code') THEN
-      location.isaddress := FALSE;
+      postcode_isaddress := false;
+      IF location.osm_type != 'R' THEN
+        location.isaddress := FALSE;
+      END IF;
     END IF;
     countrylocation := ROW(location.place_id, location.osm_type, location.osm_id,
                            location.name, location.class, location.type,
@@ -2485,7 +2491,7 @@ BEGIN
 
   IF searchpostcode IS NOT NULL THEN
     location := ROW(null, null, null, hstore('ref', searchpostcode), 'place',
-                    'postcode', null, true, true, 5, 0)::addressline;
+                    'postcode', null, false, postcode_isaddress, 5, 0)::addressline;
     RETURN NEXT location;
   END IF;