merge addr tags into search_name table

When a place of rank 30 has addr tags that are not covered by the
search terms of the parent, add a separate entry for the POI in
the search_name table that includes the addr tags. We can only
do that with named places. For POIs without a name the housenumber
is used as name. If that is not available either, searching still
won't work.

sql/functions/normalization.sql

@@ -412,3 +412,99 @@ BEGIN
 END;
 $$
 LANGUAGE plpgsql;
+
+
+CREATE OR REPLACE FUNCTION create_poi_search_terms(parent_place_id BIGINT,
+                                                   address HSTORE,
+                                                   housenumber TEXT,
+                                                   initial_name_vector INTEGER[],
+                                                   OUT name_vector INTEGER[],
+                                                   OUT nameaddress_vector INTEGER[])
+  AS $$
+DECLARE
+  parent_name_vector INTEGER[];
+  parent_address_vector INTEGER[];
+  addr_place_ids INTEGER[];
+
+  addr_item RECORD;
+BEGIN
+  -- Compute all search terms from the addr: tags.
+  nameaddress_vector := '{}'::INTEGER[];
+
+  IF address IS NOT NULL THEN
+    FOR addr_item IN SELECT * FROM each(address)
+    LOOP
+      IF addr_item.key IN ('city', 'tiger:county', 'state', 'suburb', 'province',
+                           'district', 'region', 'county', 'municipality',
+                           'hamlet', 'village', 'subdistrict', 'town',
+                           'neighbourhood', 'quarter', 'parish')
+      THEN
+          nameaddress_vector := array_merge(nameaddress_vector,
+                                            addr_ids_from_name(addr_item.value));
+      END IF;
+    END LOOP;
+  END IF;
+
+  -- If the POI is named, simply mix in all address terms and be done.
+  IF array_length(initial_name_vector, 1) is not NULL THEN
+    -- Cheating here by not recomputing all terms but simply using the ones
+    -- from the parent object.
+    SELECT array_merge(s.name_vector, s.nameaddress_vector)
+      INTO parent_address_vector
+      FROM search_name s
+      WHERE s.place_id = parent_place_id;
+
+    name_vector := initial_name_vector;
+    nameaddress_vector := array_merge(nameaddress_vector, parent_address_vector);
+
+    IF not address ? 'street' and address ? 'place' THEN
+      -- make sure addr:place terms are always searchable
+      nameaddress_vector := array_merge(nameaddress_vector,
+                                        addr_ids_from_name(address->'place'));
+    END IF;
+
+    RETURN;
+  END IF;
+
+  ----- unnamed POIS
+
+  IF (array_length(nameaddress_vector, 1) is null
+      and (address ? 'street'or not address ? 'place'))
+     or housenumber is null
+  THEN
+    RETURN;
+  END IF;
+
+  SELECT s.name_vector, s.nameaddress_vector
+    INTO parent_name_vector, parent_address_vector
+    FROM search_name s
+    WHERE s.place_id = parent_place_id;
+
+  -- Check if the parent covers all address terms.
+  -- If not, create a search name entry with the house number as the name.
+  -- This is unusual for the search_name table but prevents that the place
+  -- is returned when we only search for the street/place.
+
+  IF not nameaddress_vector <@ parent_address_vector THEN
+    name_vector := ARRAY[getorcreate_name_id(housenumber)];
+  END IF;
+
+  IF not address ? 'street' and address ? 'place' THEN
+    addr_place_ids := addr_ids_from_name(address->'place');
+    IF not addr_place_ids <@ parent_name_vector THEN
+      -- addr:place tag exists without a corresponding place. Mix in addr:place
+      -- in the address and drop the name from the parent. This would only be
+      -- the street name of the nearest street.
+      nameaddress_vector := array_merge(nameaddress_vector, addr_place_ids);
+      name_vector := ARRAY[getorcreate_name_id(housenumber)];
+    END IF;
+  ELSE
+    nameaddress_vector := array_merge(nameaddress_vector, parent_name_vector);
+  END IF;
+
+  -- The address vector always gets merged in.
+  nameaddress_vector := array_merge(nameaddress_vector, parent_address_vector);
+
+END;
+$$
+LANGUAGE plpgsql;

sql/functions/placex_triggers.sql

@@ -224,7 +224,7 @@ LANGUAGE plpgsql STABLE;
 -- \param maxrank       Rank of the place. All address features must have
 --                      a search rank lower than the given rank.
 -- \param address       Address terms for the place.
--- \param geoemtry      Geometry to which the address objects should be close.
+-- \param geometry      Geometry to which the address objects should be close.
 --
 -- \retval parent_place_id  Place_id of the address object that is the direct
 --                          ancestor.
@@ -541,6 +541,9 @@ DECLARE
 
   name_vector INTEGER[];
   nameaddress_vector INTEGER[];
+  addr_nameaddress_vector INTEGER[];
+
+  inherited_address HSTORE;
 
   linked_node_id BIGINT;
   linked_importance FLOAT;
@@ -710,6 +713,7 @@ BEGIN
 
     -- if we have a POI and there is no address information,
     -- see if we can get it from a surrounding building
+    inherited_address := ''::HSTORE;
     IF NEW.osm_type = 'N' AND addr_street IS NULL AND addr_place IS NULL
        AND NEW.housenumber IS NULL THEN
       FOR location IN
@@ -724,6 +728,7 @@ BEGIN
         NEW.housenumber := location.address->'housenumber';
         addr_street := location.address->'street';
         addr_place := location.address->'place';
+        inherited_address := location.address;
       END LOOP;
     END IF;
 
@@ -754,28 +759,26 @@ BEGIN
         NEW.postcode := get_nearest_postcode(NEW.country_code, NEW.geometry);
       END IF;
 
-      -- If there is no name it isn't searchable, don't bother to create a search record
-      IF NEW.name is NULL THEN
-        --DEBUG: RAISE WARNING 'Not a searchable place % %', NEW.osm_type, NEW.osm_id;
-        return NEW;
+      IF NEW.name is not NULL THEN
+          NEW.name := add_default_place_name(NEW.country_code, NEW.name);
+          name_vector := make_keywords(NEW.name);
+
+          IF NEW.rank_search <= 25 and NEW.rank_address > 0 THEN
+            result := add_location(NEW.place_id, NEW.country_code, NEW.partition,
+                                   name_vector, NEW.rank_search, NEW.rank_address,
+                                   upper(trim(NEW.address->'postcode')), NEW.geometry);
+            --DEBUG: RAISE WARNING 'Place added to location table';
+          END IF;
+
       END IF;
 
-      NEW.name := add_default_place_name(NEW.country_code, NEW.name);
-      name_vector := make_keywords(NEW.name);
-
-      -- Performance, it would be more acurate to do all the rest of the import
-      -- process but it takes too long
-      -- Just be happy with inheriting from parent road only
-      result := insertSearchName(NEW.partition, NEW.place_id, name_vector,
-                                 NEW.rank_search, NEW.rank_address, NEW.geometry);
-
       IF NOT %REVERSE-ONLY% THEN
-          -- Merge address from parent
-          SELECT array_merge(s.name_vector, s.nameaddress_vector)
-            INTO nameaddress_vector
-            FROM search_name s
-            WHERE s.place_id = NEW.parent_place_id;
+        SELECT * INTO name_vector, nameaddress_vector
+          FROM create_poi_search_terms(NEW.parent_place_id,
+                                       inherited_address || NEW.address,
+                                       NEW.housenumber, name_vector);
 
+        IF array_length(name_vector, 1) is not NULL THEN
           INSERT INTO search_name (place_id, search_rank, address_rank,
                                    importance, country_code, name_vector,
                                    nameaddress_vector, centroid)
@@ -784,8 +787,9 @@ BEGIN
                          nameaddress_vector, NEW.centroid);
           --DEBUG: RAISE WARNING 'Place added to search table';
         END IF;
+      END IF;
 
-      return NEW;
+      RETURN NEW;
     END IF;
 
   END IF;

test/bdd/db/import/search_name.feature

@@ -2,7 +2,7 @@
 Feature: Creation of search terms
     Tests that search_name table is filled correctly
 
-    Scenario: POIs without a name have no search entry
+    Scenario: Unnamed POIs have no search entry
         Given the scene roads-with-pois
         And the places
          | osm | class   | type        | geometry |
@@ -13,6 +13,152 @@ Feature: Creation of search terms
         When importing
         Then search_name has no entry for N1
 
+    Scenario: Unnamed POI has a search entry when it has unknown addr: tags
+        Given the scene roads-with-pois
+        And the places
+         | osm | class   | type        | housenr | addr+city | geometry |
+         | N1  | place   | house       | 23      | Walltown  | :p-N1 |
+        And the places
+         | osm | class   | type        | name+name   | geometry |
+         | W1  | highway | residential | Rose Street | :w-north |
+        When importing
+        Then search_name contains
+         | object | name_vector | nameaddress_vector |
+         | N1     | #23         | Rose Street, Walltown |
+        When searching for "23 Rose Street, Walltown"
+        Then results contain
+         | osm_type | osm_id |
+         | N        | 1 |
+
+    Scenario: Unnamed POI has no search entry when it has known addr: tags
+        Given the scene roads-with-pois
+        And the places
+         | osm | class   | type        | housenr | addr+city | geometry |
+         | N1  | place   | house       | 23      | Walltown  | :p-N1 |
+        And the places
+         | osm | class   | type        | name+name   | addr+city | geometry |
+         | W1  | highway | residential | Rose Street | Walltown | :w-north |
+        When importing
+        Then search_name has no entry for N1
+        When searching for "23 Rose Street, Walltown"
+        Then results contain
+         | osm_type | osm_id |
+         | N        | 1 |
+
+    Scenario: Unnamed POI must have a house number to get a search entry
+        Given the scene roads-with-pois
+        And the places
+         | osm | class   | type   | addr+city | geometry |
+         | N1  | place   | house  | Walltown  | :p-N1 |
+        And the places
+         | osm | class   | type        | name+name   | geometry |
+         | W1  | highway | residential | Rose Street | :w-north |
+        When importing
+        Then search_name has no entry for N1
+
+    Scenario: Unnamed POIs doesn't inherit parent name when unknown addr:place is present
+        Given the scene roads-with-pois
+        And the places
+         | osm | class   | type        | housenr | addr+place | geometry |
+         | N1  | place   | house       | 23      | Walltown   | :p-N1 |
+        And the places
+         | osm | class   | type        | name+name   | geometry |
+         | W1  | highway | residential | Rose Street | :w-north |
+        When importing
+        Then search_name contains
+         | object | name_vector | nameaddress_vector |
+         | N1     | #23         | Walltown |
+        When searching for "23 Rose Street, Walltown"
+        Then exactly 0 results are returned
+
+    # XXX Need to change parenting of POis without addr:street and with addr:place
+    Scenario: Unnamed POIs doesn't inherit parent name when addr:place is present only in parent address
+        Given the scene roads-with-pois
+        And the places
+         | osm | class   | type        | housenr | addr+place | geometry |
+         | N1  | place   | house       | 23      | Walltown   | :p-N1 |
+        And the places
+         | osm | class   | type        | name+name   | addr+city | geometry |
+         | W1  | highway | residential | Rose Street | Walltown  | :w-north |
+        When importing
+        Then search_name contains
+         | object | name_vector | nameaddress_vector |
+         | N1     | #23         | Walltown |
+        When searching for "23 Rose Street, Walltown"
+        Then exactly 1 result is returned
+        And results contain
+         | osm_type | osm_id |
+         | W        | 1 |
+
+    Scenario: Unnamed POIs does inherit parent name when unknown addr:place and addr:street is present
+        Given the scene roads-with-pois
+        And the places
+         | osm | class   | type   | housenr | addr+place | addr+street | geometry |
+         | N1  | place   | house  | 23      | Walltown   | Lily Street | :p-N1 |
+        And the places
+         | osm | class   | type        | name+name   | geometry |
+         | W1  | highway | residential | Rose Street | :w-north |
+        When importing
+        Then search_name has no entry for N1
+        When searching for "23 Rose Street"
+        Then results contain
+         | osm_type | osm_id |
+         | N        | 1 |
+        When searching for "23 Lily Street"
+        Then exactly 0 results are returned
+
+    Scenario: An unknown addr:street is ignored
+        Given the scene roads-with-pois
+        And the places
+         | osm | class   | type   | housenr |  addr+street | geometry |
+         | N1  | place   | house  | 23      |  Lily Street | :p-N1 |
+        And the places
+         | osm | class   | type        | name+name   | geometry |
+         | W1  | highway | residential | Rose Street | :w-north |
+        When importing
+        Then search_name has no entry for N1
+        When searching for "23 Rose Street"
+        Then results contain
+         | osm_type | osm_id |
+         | N        | 1 |
+        When searching for "23 Lily Street"
+        Then exactly 0 results are returned
+
+    Scenario: Named POIs have unknown address tags added in the search_name table
+        Given the scene roads-with-pois
+        And the places
+         | osm | class   | type        | name+name  | addr+city | geometry |
+         | N1  | place   | house       | Green Moss | Walltown  | :p-N1 |
+        And the places
+         | osm | class   | type        | name+name   | geometry |
+         | W1  | highway | residential | Rose Street | :w-north |
+        When importing
+        Then search_name contains
+         | object | name_vector | nameaddress_vector |
+         | N1     | #Green Moss | Rose Street, Walltown |
+        When searching for "Green Moss, Rose Street, Walltown"
+        Then results contain
+         | osm_type | osm_id |
+         | N        | 1 |
+
+    Scenario: Named POI doesn't inherit parent name when addr:place is present only in parent address
+        Given the scene roads-with-pois
+        And the places
+         | osm | class   | type        | name+name  | addr+place | geometry |
+         | N1  | place   | house       | Green Moss | Walltown  | :p-N1 |
+        And the places
+         | osm | class   | type        | name+name   | geometry |
+         | W1  | highway | residential | Rose Street | :w-north |
+        When importing
+        Then search_name contains
+         | object | name_vector | nameaddress_vector |
+         | N1     | #Green Moss | Walltown |
+        When searching for "Green Moss, Rose Street, Walltown"
+        Then exactly 1 result is returned
+        And results contain
+         | osm_type | osm_id |
+         | W        | 1 |
+
     Scenario: Named POIs inherit address from parent
         Given the scene roads-with-pois
         And the places

test/bdd/steps/db_ops.py

@@ -470,12 +470,22 @@ def check_search_name_contents(context, exclude):
         for res in cur:
             for h in row.headings:
                 if h in ('name_vector', 'nameaddress_vector'):
-                    terms = [x.strip().replace('#', ' ') for x in row[h].split(',')]
+                    terms = [x.strip() for x in row[h].split(',') if not x.strip().startswith('#')]
+                    words = [x.strip()[1:] for x in row[h].split(',') if x.strip().startswith('#')]
                     subcur = context.db.cursor()
-                    subcur.execute("""SELECT word_id, word_token
-                                      FROM word, (SELECT unnest(%s) as term) t
-                                      WHERE word_token = make_standard_name(t.term)""",
-                                   (terms,))
+                    subcur.execute(""" SELECT word_id, word_token
+                                       FROM word, (SELECT unnest(%s::TEXT[]) as term) t
+                                       WHERE word_token = make_standard_name(t.term)
+                                             and class is null and country_code is null
+                                             and operator is null
+                                      UNION
+                                       SELECT word_id, word_token
+                                       FROM word, (SELECT unnest(%s::TEXT[]) as term) t
+                                       WHERE word_token = ' ' || make_standard_name(t.term)
+                                             and class is null and country_code is null
+                                             and operator is null
+                                   """,
+                                   (terms, words))
                     if not exclude:
                         ok_(subcur.rowcount >= len(terms),
                             "No word entry found for " + row[h])