linked centroids must always be within geometry

[nominatim.git] / sql / functions / placex_triggers.sql

diff --git a/sql/functions/placex_triggers.sql b/sql/functions/placex_triggers.sql
index e86e7daa29110199d7e715b40cf93209a7eafb4b..779301c56cc87f2fafe762d5dd3a281385745f68 100644 (file)
--- a/sql/functions/placex_triggers.sql
+++ b/sql/functions/placex_triggers.sql
@@ -40,6 +40,122 @@ END;
 $$
 LANGUAGE plpgsql IMMUTABLE;
 
 $$
 LANGUAGE plpgsql IMMUTABLE;
 

+-- Find the parent road of a POI.
+--
+-- \returns Place ID of parent object or NULL if none
+--
+-- Copy data from linked items (POIs on ways, addr:street links, relations).
+--
+CREATE OR REPLACE FUNCTION find_parent_for_poi(poi_osm_type CHAR(1),
+                                               poi_osm_id BIGINT,
+                                               poi_partition SMALLINT,
+                                               bbox GEOMETRY,
+                                               addr_street TEXT,
+                                               addr_place TEXT,
+                                               fallback BOOL = true)
+  RETURNS BIGINT
+  AS $$
+DECLARE
+  parent_place_id BIGINT DEFAULT NULL;
+  location RECORD;
+  parent RECORD;
+BEGIN
+    --DEBUG: RAISE WARNING 'finding street for % %', poi_osm_type, poi_osm_id;
+
+    -- Is this object part of an associatedStreet relation?
+    FOR location IN
+      SELECT members FROM planet_osm_rels
+      WHERE parts @> ARRAY[poi_osm_id]
+        and members @> ARRAY[lower(poi_osm_type) || poi_osm_id]
+        and tags @> ARRAY['associatedStreet']
+    LOOP
+      FOR i IN 1..array_upper(location.members, 1) BY 2 LOOP
+        IF location.members[i+1] = 'street' THEN
+          --DEBUG: RAISE WARNING 'node in relation %',relation;
+          FOR parent IN
+            SELECT place_id from placex
+             WHERE osm_type = 'W' and osm_id = substring(location.members[i],2)::bigint
+               and name is not null
+               and rank_search between 26 and 27
+          LOOP
+            RETURN parent.place_id;
+          END LOOP;
+        END IF;
+      END LOOP;
+    END LOOP;
+
+    parent_place_id := find_parent_for_address(addr_street, addr_place,
+                                               poi_partition, bbox);
+    IF parent_place_id is not null THEN
+      RETURN parent_place_id;
+    END IF;
+
+    IF poi_osm_type = 'N' THEN
+      -- Is this node part of an interpolation?
+      FOR parent IN
+        SELECT q.parent_place_id
+          FROM location_property_osmline q, planet_osm_ways x
+         WHERE q.linegeo && bbox and x.id = q.osm_id
+               and poi_osm_id = any(x.nodes)
+         LIMIT 1
+      LOOP
+        --DEBUG: RAISE WARNING 'Get parent from interpolation: %', parent.parent_place_id;
+        RETURN parent.parent_place_id;
+      END LOOP;
+
+      -- Is this node part of any other way?
+      FOR location IN
+        SELECT p.place_id, p.osm_id, p.rank_search, p.address,
+               coalesce(p.centroid, ST_Centroid(p.geometry)) as centroid
+          FROM placex p, planet_osm_ways w
+         WHERE p.osm_type = 'W' and p.rank_search >= 26
+               and p.geometry && bbox
+               and w.id = p.osm_id and poi_osm_id = any(w.nodes)
+      LOOP
+        --DEBUG: RAISE WARNING 'Node is part of way % ', location.osm_id;
+
+        -- Way IS a road then we are on it - that must be our road
+        IF location.rank_search < 28 THEN
+          --DEBUG: RAISE WARNING 'node in way that is a street %',location;
+          return location.place_id;
+        END IF;
+
+        SELECT find_parent_for_poi('W', location.osm_id, poi_partition,
+                                   location.centroid,
+                                   location.address->'street',
+                                   location.address->'place',
+                                   false)
+          INTO parent_place_id;
+        IF parent_place_id is not null THEN
+          RETURN parent_place_id;
+        END IF;
+      END LOOP;
+    END IF;
+
+    IF fallback THEN
+      IF ST_Area(bbox) < 0.01 THEN
+        -- for smaller features get the nearest road
+        SELECT getNearestRoadPlaceId(poi_partition, bbox) INTO parent_place_id;
+        --DEBUG: RAISE WARNING 'Checked for nearest way (%)', parent_place_id;
+      ELSE
+        -- for larger features simply find the area with the largest rank that
+        -- contains the bbox
+        FOR location IN
+          SELECT place_id FROM placex
+            WHERE bbox @ geometry AND _ST_Covers(geometry, ST_Centroid(bbox))
+                  AND rank_search between 5 and 25
+            ORDER BY rank_search desc
+        LOOP
+            RETURN location.place_id;
+        END LOOP;
+      END IF;
+    END IF;
+
+    RETURN parent_place_id;
+END;
+$$
+LANGUAGE plpgsql STABLE;
+

 -- Try to find a linked place for the given object.
 CREATE OR REPLACE FUNCTION find_linked_place(bnd placex)
   RETURNS placex
 -- Try to find a linked place for the given object.
 CREATE OR REPLACE FUNCTION find_linked_place(bnd placex)
   RETURNS placex


@@ -88,9 +204,26 @@ BEGIN
     END IF;
   END IF;
 
     END IF;
   END IF;
 

+  -- If extratags has a place tag, look for linked nodes by their place type.
+  -- Area and node still have to have the same name.
+  IF bnd.extratags ? 'place' and bnd_name is not null THEN
+    FOR linked_placex IN
+      SELECT * FROM placex
+      WHERE make_standard_name(name->'name') = bnd_name
+        AND placex.class = 'place' AND placex.type = bnd.extratags->'place'
+        AND placex.osm_type = 'N'
+        AND placex.rank_search < 26 -- needed to select the right index
+        AND _st_covers(bnd.geometry, placex.geometry)
+    LOOP
+      --DEBUG: RAISE WARNING 'Found type-matching place node %', linked_placex.osm_id;
+      RETURN linked_placex;
+    END LOOP;
+  END IF;
+

   -- Search for relation members with role admin_center.
   IF bnd.osm_type = 'R' and bnd_name is not null
   -- Search for relation members with role admin_center.
   IF bnd.osm_type = 'R' and bnd_name is not null

-     and relation_members is not null THEN
+     and relation_members is not null
+  THEN

     FOR rel_member IN
       SELECT get_rel_node_members(relation_members,
                                 ARRAY['admin_center','admin_centre']) as member
     FOR rel_member IN
       SELECT get_rel_node_members(relation_members,
                                 ARRAY['admin_center','admin_centre']) as member


@@ -115,16 +248,17 @@ BEGIN
   END IF;
 
   -- Name searches can be done for ways as well as relations
   END IF;
 
   -- Name searches can be done for ways as well as relations

-  IF bnd.osm_type in ('W','R') and bnd_name is not null THEN
+  IF bnd_name is not null THEN

     --DEBUG: RAISE WARNING 'Looking for nodes with matching names';
     FOR linked_placex IN
       SELECT placex.* from placex
       WHERE make_standard_name(name->'name') = bnd_name
         AND placex.rank_address = bnd.rank_address
         AND placex.osm_type = 'N'
     --DEBUG: RAISE WARNING 'Looking for nodes with matching names';
     FOR linked_placex IN
       SELECT placex.* from placex
       WHERE make_standard_name(name->'name') = bnd_name
         AND placex.rank_address = bnd.rank_address
         AND placex.osm_type = 'N'

-        AND st_covers(geometry, placex.geometry)
+        AND placex.rank_search < 26 -- needed to select the right index
+        AND _st_covers(bnd.geometry, placex.geometry)

     LOOP
     LOOP

-      --DEBUG: RAISE WARNING 'Found matching place node %', linkedPlacex.osm_id;
+      --DEBUG: RAISE WARNING 'Found matching place node %', linked_placex.osm_id;

       RETURN linked_placex;
     END LOOP;
   END IF;
       RETURN linked_placex;
     END LOOP;
   END IF;


@@ -132,13 +266,174 @@ BEGIN
   RETURN NULL;
 END;
 $$
   RETURN NULL;
 END;
 $$

+LANGUAGE plpgsql STABLE;
+
+
+-- Insert address of a place into the place_addressline table.
+--
+-- \param obj_place_id  Place_id of the place to compute the address for.
+-- \param partition     Partition number where the place is in.
+-- \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.
+--
+-- \retval parent_place_id  Place_id of the address object that is the direct
+--                          ancestor.
+-- \retval postcode         Postcode computed from the address. This is the
+--                          addr:postcode of one of the address objects. If
+--                          more than one of has a postcode, the highest ranking
+--                          one is used. May be NULL.
+-- \retval nameaddress_vector  Search terms for the address. This is the sum
+--                             of name terms of all address objects.
+CREATE OR REPLACE FUNCTION insert_addresslines(obj_place_id BIGINT,
+                                               partition SMALLINT,
+                                               maxrank SMALLINT,
+                                               address HSTORE,
+                                               geometry GEOMETRY,
+                                               OUT parent_place_id BIGINT,
+                                               OUT postcode TEXT,
+                                               OUT nameaddress_vector INT[])
+  AS $$
+DECLARE
+  current_rank_address INTEGER := 0;
+  location_distance FLOAT := 0;
+  location_parent GEOMETRY := NULL;
+  parent_place_id_rank SMALLINT := 0;
+
+  location_isaddress BOOLEAN;
+
+  address_havelevel BOOLEAN[];
+  location_keywords INT[];
+
+  location RECORD;
+  addr_item RECORD;
+
+  isin_tokens INT[];
+  isin TEXT[];
+BEGIN
+  parent_place_id := 0;
+  nameaddress_vector := '{}'::int[];
+  isin_tokens := '{}'::int[];
+
+  ---- convert address store to array of tokenids
+  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
+        isin_tokens := array_merge(isin_tokens,
+                                   word_ids_from_name(addr_item.value));
+        IF NOT %REVERSE-ONLY% THEN
+          nameaddress_vector := array_merge(nameaddress_vector,
+                                            addr_ids_from_name(addr_item.value));
+        END IF;
+      END IF;
+    END LOOP;
+
+    IF address ? 'is_in' THEN
+      -- is_in items need splitting
+      isin := regexp_split_to_array(address->'is_in', E'[;,]');
+      IF array_upper(isin, 1) IS NOT NULL THEN
+        FOR i IN 1..array_upper(isin, 1) LOOP
+          isin_tokens := array_merge(isin_tokens,
+                                     word_ids_from_name(isin[i]));
+
+          -- merge word into address vector
+          IF NOT %REVERSE-ONLY% THEN
+            nameaddress_vector := array_merge(nameaddress_vector,
+                                              addr_ids_from_name(isin[i]));
+          END IF;
+        END LOOP;
+      END IF;
+    END IF;
+  END IF;
+  IF NOT %REVERSE-ONLY% THEN
+    nameaddress_vector := array_merge(nameaddress_vector, isin_tokens);
+  END IF;
+
+  ---- now compute the address terms
+  FOR i IN 1..28 LOOP
+    address_havelevel[i] := false;
+  END LOOP;
+
+  FOR location IN
+    SELECT * FROM getNearFeatures(partition, geometry, maxrank, isin_tokens)
+  LOOP
+    IF location.rank_address != current_rank_address THEN
+      current_rank_address := location.rank_address;
+      IF location.isguess THEN
+        location_distance := location.distance * 1.5;
+      ELSE
+        IF location.rank_address <= 12 THEN
+          -- for county and above, if we have an area consider that exact
+          -- (It would be nice to relax the constraint for places close to
+          --  the boundary but we'd need the exact geometry for that. Too
+          --  expensive.)
+          location_distance = 0;
+        ELSE
+          -- Below county level remain slightly fuzzy.
+          location_distance := location.distance * 0.5;
+        END IF;
+      END IF;
+    ELSE
+      CONTINUE WHEN location.keywords <@ location_keywords;
+    END IF;
+
+    IF location.distance < location_distance OR NOT location.isguess THEN
+      location_keywords := location.keywords;
+
+      location_isaddress := NOT address_havelevel[location.rank_address];
+      IF location_isaddress AND location.isguess AND location_parent IS NOT NULL THEN
+          location_isaddress := ST_Contains(location_parent, location.centroid);
+      END IF;
+
+      -- RAISE WARNING '% isaddress: %', location.place_id, location_isaddress;
+      -- Add it to the list of search terms
+      IF NOT %REVERSE-ONLY% THEN
+          nameaddress_vector := array_merge(nameaddress_vector,
+                                            location.keywords::integer[]);
+      END IF;
+
+      INSERT INTO place_addressline (place_id, address_place_id, fromarea,
+                                     isaddress, distance, cached_rank_address)
+        VALUES (obj_place_id, location.place_id, true,
+                location_isaddress, location.distance, location.rank_address);
+
+      IF location_isaddress THEN
+        -- add postcode if we have one
+        -- (If multiple postcodes are available, we end up with the highest ranking one.)
+        IF location.postcode is not null THEN
+            postcode = location.postcode;
+        END IF;
+
+        address_havelevel[location.rank_address] := true;
+        IF NOT location.isguess THEN
+          SELECT placex.geometry FROM placex
+            WHERE obj_place_id = location.place_id INTO location_parent;
+        END IF;
+
+        IF location.rank_address > parent_place_id_rank THEN
+          parent_place_id = location.place_id;
+          parent_place_id_rank = location.rank_address;
+        END IF;
+      END IF;
+    --DEBUG: RAISE WARNING '  Terms: (%) %',location, nameaddress_vector;
+    END IF;
+
+  END LOOP;
+END;
+$$

 LANGUAGE plpgsql;
 
 LANGUAGE plpgsql;
 

+

 CREATE OR REPLACE FUNCTION placex_insert()
   RETURNS TRIGGER
   AS $$
 DECLARE
 CREATE OR REPLACE FUNCTION placex_insert()
   RETURNS TRIGGER
   AS $$
 DECLARE

-  i INTEGER;

   postcode TEXT;
   result BOOLEAN;
   is_area BOOLEAN;
   postcode TEXT;
   result BOOLEAN;
   is_area BOOLEAN;


@@ -310,40 +605,15 @@ CREATE OR REPLACE FUNCTION placex_update()
   RETURNS TRIGGER
   AS $$
 DECLARE
   RETURNS TRIGGER
   AS $$
 DECLARE

-
-  near_centroid GEOMETRY;
-
-  search_maxdistance FLOAT[];
-  search_mindistance FLOAT[];
-  address_havelevel BOOLEAN[];
-

   i INTEGER;
   i INTEGER;

-  iMax FLOAT;

   location RECORD;
   location RECORD;

-  way RECORD;
-  relation RECORD;

   relation_members TEXT[];
   relation_members TEXT[];

-  addr_item RECORD;
-  search_diameter FLOAT;
-  search_prevdiameter FLOAT;
-  search_maxrank INTEGER;
-  address_maxrank INTEGER;
-  address_street_word_id INTEGER;
-  address_street_word_ids INTEGER[];
-  parent_place_id_rank BIGINT;
+
+  centroid GEOMETRY;

 
   addr_street TEXT;
   addr_place TEXT;
 
 
   addr_street TEXT;
   addr_place TEXT;
 

-  isin TEXT[];
-  isin_tokens INT[];
-
-  location_rank_search INTEGER;
-  location_distance FLOAT;
-  location_parent GEOMETRY;
-  location_isaddress BOOLEAN;
-  location_keywords INTEGER[];
-

   name_vector INTEGER[];
   nameaddress_vector INTEGER[];
 
   name_vector INTEGER[];
   nameaddress_vector INTEGER[];
 


@@ -415,11 +685,10 @@ BEGIN
   -- Speed up searches - just use the centroid of the feature
   -- cheaper but less acurate
   NEW.centroid := ST_PointOnSurface(NEW.geometry);
   -- Speed up searches - just use the centroid of the feature
   -- cheaper but less acurate
   NEW.centroid := ST_PointOnSurface(NEW.geometry);

-  -- For searching near features rather use the centroid
-  near_centroid := ST_Envelope(NEW.geometry);
-  NEW.postcode := null;

   --DEBUG: RAISE WARNING 'Computing preliminary centroid at %',ST_AsText(NEW.centroid);
 
   --DEBUG: RAISE WARNING 'Computing preliminary centroid at %',ST_AsText(NEW.centroid);
 

+  NEW.postcode := null;
+

   -- recalculate country and partition
   IF NEW.rank_search = 4 AND NEW.address is not NULL AND NEW.address ? 'country' THEN
     -- for countries, believe the mapped country code,
   -- recalculate country and partition
   IF NEW.rank_search = 4 AND NEW.address is not NULL AND NEW.address ? 'country' THEN
     -- for countries, believe the mapped country code,


@@ -479,8 +748,11 @@ BEGIN
     -- see if we can get it from a surrounding building
     IF NEW.osm_type = 'N' AND addr_street IS NULL AND addr_place IS NULL
        AND NEW.housenumber IS NULL THEN
     -- see if we can get it from a surrounding building
     IF NEW.osm_type = 'N' AND addr_street IS NULL AND addr_place IS NULL
        AND NEW.housenumber IS NULL THEN

-      FOR location IN select address from placex where ST_Covers(geometry, NEW.centroid)
-            and address is not null
+      FOR location IN
+        -- The additional && condition works around the misguided query
+        -- planner of postgis 3.0.
+        SELECT address from placex where ST_Covers(geometry, NEW.centroid)
+            and geometry && NEW.centroid

             and (address ? 'housenumber' or address ? 'street' or address ? 'place')
             and rank_search > 28 AND ST_GeometryType(geometry) in ('ST_Polygon','ST_MultiPolygon')
             limit 1
             and (address ? 'housenumber' or address ? 'street' or address ? 'place')
             and rank_search > 28 AND ST_GeometryType(geometry) in ('ST_Polygon','ST_MultiPolygon')
             limit 1


@@ -493,117 +765,14 @@ BEGIN
     END IF;
 
     -- We have to find our parent road.
     END IF;
 
     -- We have to find our parent road.

-    -- Copy data from linked items (points on ways, addr:street links, relations)
-
-    -- Is this object part of a relation?
-    FOR relation IN select * from planet_osm_rels where parts @> ARRAY[NEW.osm_id] and members @> ARRAY[lower(NEW.osm_type)||NEW.osm_id]
-    LOOP
-      -- At the moment we only process one type of relation - associatedStreet
-      IF relation.tags @> ARRAY['associatedStreet'] THEN
-        FOR i IN 1..array_upper(relation.members, 1) BY 2 LOOP
-          IF NEW.parent_place_id IS NULL AND relation.members[i+1] = 'street' THEN
---RAISE WARNING 'node in relation %',relation;
-            SELECT place_id from placex where osm_type = 'W'
-              and osm_id = substring(relation.members[i],2,200)::bigint
-              and rank_search = 26 and name is not null INTO NEW.parent_place_id;
-          END IF;
-        END LOOP;
-      END IF;
-    END LOOP;
-    --DEBUG: RAISE WARNING 'Checked for street relation (%)', NEW.parent_place_id;
-
-    -- Note that addr:street links can only be indexed once the street itself is indexed
-    IF NEW.parent_place_id IS NULL AND addr_street IS NOT NULL THEN
-      address_street_word_ids := get_name_ids(make_standard_name(addr_street));
-      IF address_street_word_ids IS NOT NULL THEN
-        SELECT place_id from getNearestNamedRoadFeature(NEW.partition, near_centroid, address_street_word_ids) INTO NEW.parent_place_id;
-      END IF;
-    END IF;
-    --DEBUG: RAISE WARNING 'Checked for addr:street (%)', NEW.parent_place_id;
-
-    IF NEW.parent_place_id IS NULL AND addr_place IS NOT NULL THEN
-      address_street_word_ids := get_name_ids(make_standard_name(addr_place));
-      IF address_street_word_ids IS NOT NULL THEN
-        SELECT place_id from getNearestNamedPlaceFeature(NEW.partition, near_centroid, address_street_word_ids) INTO NEW.parent_place_id;
-      END IF;
-    END IF;
-    --DEBUG: RAISE WARNING 'Checked for addr:place (%)', NEW.parent_place_id;
-
-    -- Is this node part of an interpolation?
-    IF NEW.parent_place_id IS NULL AND NEW.osm_type = 'N' THEN
-      SELECT q.parent_place_id FROM location_property_osmline q, planet_osm_ways x
-        WHERE q.linegeo && NEW.geometry and x.id = q.osm_id and NEW.osm_id = any(x.nodes)
-        LIMIT 1 INTO NEW.parent_place_id;
-    END IF;
-    --DEBUG: RAISE WARNING 'Checked for interpolation (%)', NEW.parent_place_id;
-
-    -- Is this node part of a way?
-    IF NEW.parent_place_id IS NULL AND NEW.osm_type = 'N' THEN
-
-      FOR location IN
-        SELECT p.place_id, p.osm_id, p.rank_search, p.address from placex p, planet_osm_ways w
-         WHERE p.osm_type = 'W' and p.rank_search >= 26 and p.geometry && NEW.geometry and w.id = p.osm_id and NEW.osm_id = any(w.nodes)
-      LOOP
-        --DEBUG: RAISE WARNING 'Node is part of way % ', location.osm_id;
-
-        -- Way IS a road then we are on it - that must be our road
-        IF location.rank_search < 28 THEN
---RAISE WARNING 'node in way that is a street %',location;
-          NEW.parent_place_id := location.place_id;
-          EXIT;
-        END IF;
-        --DEBUG: RAISE WARNING 'Checked if way is street (%)', NEW.parent_place_id;
-
-        -- If the way mentions a street or place address, try that for parenting.
-        IF location.address is not null THEN
-          IF location.address ? 'street' THEN
-            address_street_word_ids := get_name_ids(make_standard_name(location.address->'street'));
-            IF address_street_word_ids IS NOT NULL THEN
-              SELECT place_id from getNearestNamedRoadFeature(NEW.partition, near_centroid, address_street_word_ids) INTO NEW.parent_place_id;
-              EXIT WHEN NEW.parent_place_id is not NULL;
-            END IF;
-          END IF;
-          --DEBUG: RAISE WARNING 'Checked for addr:street in way (%)', NEW.parent_place_id;
-
-          IF location.address ? 'place' THEN
-            address_street_word_ids := get_name_ids(make_standard_name(location.address->'place'));
-            IF address_street_word_ids IS NOT NULL THEN
-              SELECT place_id from getNearestNamedPlaceFeature(NEW.partition, near_centroid, address_street_word_ids) INTO NEW.parent_place_id;
-              EXIT WHEN NEW.parent_place_id is not NULL;
-            END IF;
-          END IF;
-        --DEBUG: RAISE WARNING 'Checked for addr:place in way (%)', NEW.parent_place_id;
-        END IF;
-
-        -- Is the WAY part of a relation
-        FOR relation IN select * from planet_osm_rels where parts @> ARRAY[location.osm_id] and members @> ARRAY['w'||location.osm_id]
-        LOOP
-          -- At the moment we only process one type of relation - associatedStreet
-          IF relation.tags @> ARRAY['associatedStreet'] AND array_upper(relation.members, 1) IS NOT NULL THEN
-            FOR i IN 1..array_upper(relation.members, 1) BY 2 LOOP
-              IF NEW.parent_place_id IS NULL AND relation.members[i+1] = 'street' THEN
---RAISE WARNING 'node in way that is in a relation %',relation;
-                SELECT place_id from placex where osm_type='W' and osm_id = substring(relation.members[i],2,200)::bigint 
-                  and rank_search = 26 and name is not null INTO NEW.parent_place_id;
-              END IF;
-            END LOOP;
-          END IF;
-        END LOOP;
-        EXIT WHEN NEW.parent_place_id is not null;
-        --DEBUG: RAISE WARNING 'Checked for street relation in way (%)', NEW.parent_place_id;
-
-      END LOOP;
-    END IF;
-
-    -- Still nothing, just use the nearest road
-    IF NEW.parent_place_id IS NULL THEN
-      SELECT place_id FROM getNearestRoadFeature(NEW.partition, near_centroid) INTO NEW.parent_place_id;
-    END IF;
-    --DEBUG: RAISE WARNING 'Checked for nearest way (%)', NEW.parent_place_id;
-
+    NEW.parent_place_id := find_parent_for_poi(NEW.osm_type, NEW.osm_id,
+                                               NEW.partition,
+                                               ST_Envelope(NEW.geometry),
+                                               addr_street, addr_place);

 
 

-    -- If we didn't find any road fallback to standard method
-    IF NEW.parent_place_id IS NOT NULL THEN
+    -- If we found the road take a shortcut here.
+    -- Otherwise fall back to the full address getting method below.
+    IF NEW.parent_place_id is not null THEN

 
       -- Get the details of the parent road
       SELECT p.country_code, p.postcode FROM placex p
 
       -- Get the details of the parent road
       SELECT p.country_code, p.postcode FROM placex p


@@ -613,15 +782,13 @@ BEGIN
       --DEBUG: RAISE WARNING 'Got parent details from search name';
 
       -- determine postcode
       --DEBUG: RAISE WARNING 'Got parent details from search name';
 
       -- determine postcode

-      IF NEW.rank_search > 4 THEN
-          IF NEW.address is not null AND NEW.address ? 'postcode' THEN
-              NEW.postcode = upper(trim(NEW.address->'postcode'));
-          ELSE
-             NEW.postcode := location.postcode;
-          END IF;
-          IF NEW.postcode is null THEN
-            NEW.postcode := get_nearest_postcode(NEW.country_code, NEW.geometry);
-          END IF;
+      IF NEW.address is not null AND NEW.address ? 'postcode' THEN
+          NEW.postcode = upper(trim(NEW.address->'postcode'));
+      ELSE
+         NEW.postcode := location.postcode;
+      END IF;
+      IF NEW.postcode is null THEN
+        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
       END IF;
 
       -- If there is no name it isn't searchable, don't bother to create a search record


@@ -649,7 +816,7 @@ BEGIN
           SELECT array_merge(s.name_vector, s.nameaddress_vector)
             INTO nameaddress_vector
             FROM search_name s
           SELECT array_merge(s.name_vector, s.nameaddress_vector)
             INTO nameaddress_vector
             FROM search_name s

-           WHERE s.place_id = NEW.parent_place_id;
+            WHERE s.place_id = NEW.parent_place_id;

 
           INSERT INTO search_name (place_id, search_rank, address_rank,
                                    importance, country_code, name_vector,
 
           INSERT INTO search_name (place_id, search_rank, address_rank,
                                    importance, country_code, name_vector,


@@ -670,11 +837,19 @@ BEGIN
   --DEBUG: RAISE WARNING 'Using full index mode for % %', NEW.osm_type, NEW.osm_id;
   SELECT * INTO location FROM find_linked_place(NEW);
   IF location.place_id is not null THEN
   --DEBUG: RAISE WARNING 'Using full index mode for % %', NEW.osm_type, NEW.osm_id;
   SELECT * INTO location FROM find_linked_place(NEW);
   IF location.place_id is not null THEN

-      --DEBUG: RAISE WARNING 'Linked %', location;
+    --DEBUG: RAISE WARNING 'Linked %', location;

 
 

-    -- Use this as the centre point of the geometry
-    NEW.centroid := coalesce(location.centroid,
-                             ST_Centroid(location.geometry));
+    -- Use the linked point as the centre point of the geometry,
+    -- but only if it is within the area of the boundary.
+    centroid := coalesce(location.centroid, ST_Centroid(location.geometry));
+    IF centroid is not NULL AND ST_Within(centroid, NEW.geometry) THEN
+        NEW.centroid := centroid;
+    END IF;
+
+    -- Use the address rank of the linked place, if it has one
+    IF location.rank_address between 5 and 25 THEN
+      NEW.rank_address := location.rank_address;
+    END IF;

 
     -- merge in the label name
     IF NOT location.name IS NULL THEN
 
     -- merge in the label name
     IF NOT location.name IS NULL THEN


@@ -682,7 +857,7 @@ BEGIN
     END IF;
 
     -- merge in extra tags
     END IF;
 
     -- merge in extra tags

-    NEW.extratags := hstore(location.class, location.type)
+    NEW.extratags := hstore('linked_' || location.class, location.type)

                      || coalesce(location.extratags, ''::hstore)
                      || coalesce(NEW.extratags, ''::hstore);
 
                      || coalesce(location.extratags, ''::hstore)
                      || coalesce(NEW.extratags, ''::hstore);
 


@@ -703,13 +878,9 @@ BEGIN
     END IF;
   END IF;
 
     END IF;
   END IF;
 

-  -- What level are we searching from
-  search_maxrank := NEW.rank_search;
-

   -- Initialise the name vector using our name
   NEW.name := add_default_place_name(NEW.country_code, NEW.name);
   name_vector := make_keywords(NEW.name);
   -- Initialise the name vector using our name
   NEW.name := add_default_place_name(NEW.country_code, NEW.name);
   name_vector := make_keywords(NEW.name);

-  nameaddress_vector := '{}'::int[];

 
   -- make sure all names are in the word table
   IF NEW.admin_level = 2
 
   -- make sure all names are in the word table
   IF NEW.admin_level = 2


@@ -720,136 +891,14 @@ BEGIN
     --DEBUG: RAISE WARNING 'Country names updated';
   END IF;
 
     --DEBUG: RAISE WARNING 'Country names updated';
   END IF;
 

-  FOR i IN 1..28 LOOP
-    address_havelevel[i] := false;
-  END LOOP;
-
-  NEW.parent_place_id = 0;
-  parent_place_id_rank = 0;
-
-
-  -- convert address store to array of tokenids
-  --DEBUG: RAISE WARNING 'Starting address search';
-  isin_tokens := '{}'::int[];
-  IF NEW.address IS NOT NULL THEN
-    FOR addr_item IN SELECT * FROM each(NEW.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
-        address_street_word_id := get_name_id(make_standard_name(addr_item.value));
-        IF address_street_word_id IS NOT NULL AND NOT(ARRAY[address_street_word_id] <@ isin_tokens) THEN
-          isin_tokens := isin_tokens || address_street_word_id;
-        END IF;
-        IF NOT %REVERSE-ONLY% THEN
-          address_street_word_id := get_word_id(make_standard_name(addr_item.value));
-          IF address_street_word_id IS NOT NULL THEN
-            nameaddress_vector := array_merge(nameaddress_vector, ARRAY[address_street_word_id]);
-          END IF;
-        END IF;
-      END IF;
-      IF addr_item.key = 'is_in' THEN
-        -- is_in items need splitting
-        isin := regexp_split_to_array(addr_item.value, E'[;,]');
-        IF array_upper(isin, 1) IS NOT NULL THEN
-          FOR i IN 1..array_upper(isin, 1) LOOP
-            address_street_word_id := get_name_id(make_standard_name(isin[i]));
-            IF address_street_word_id IS NOT NULL AND NOT(ARRAY[address_street_word_id] <@ isin_tokens) THEN
-              isin_tokens := isin_tokens || address_street_word_id;
-            END IF;
-
-            -- merge word into address vector
-            IF NOT %REVERSE-ONLY% THEN
-              address_street_word_id := get_word_id(make_standard_name(isin[i]));
-              IF address_street_word_id IS NOT NULL THEN
-                nameaddress_vector := array_merge(nameaddress_vector, ARRAY[address_street_word_id]);
-              END IF;
-            END IF;
-          END LOOP;
-        END IF;
-      END IF;
-    END LOOP;
-  END IF;
-  IF NOT %REVERSE-ONLY% THEN
-    nameaddress_vector := array_merge(nameaddress_vector, isin_tokens);
-  END IF;
-
--- RAISE WARNING 'ISIN: %', isin_tokens;
-
-  -- Process area matches
-  location_rank_search := 0;
-  location_distance := 0;
-  location_parent := NULL;
-  -- added ourself as address already
-  address_havelevel[NEW.rank_address] := true;
-  --DEBUG: RAISE WARNING '  getNearFeatures(%,''%'',%,''%'')',NEW.partition, NEW.centroid, search_maxrank, isin_tokens;
-  FOR location IN
-    SELECT * from getNearFeatures(NEW.partition,
-                                  CASE WHEN NEW.rank_search >= 26
+  SELECT * FROM insert_addresslines(NEW.place_id, NEW.partition,
+                                    NEW.rank_search, NEW.address,
+                                    CASE WHEN NEW.rank_search >= 26

                                              AND NEW.rank_search < 30
                                              AND NEW.rank_search < 30

-                                       THEN NEW.geometry
-                                       ELSE NEW.centroid END,
-                                  search_maxrank, isin_tokens)
-  LOOP
-    IF location.rank_address != location_rank_search THEN
-      location_rank_search := location.rank_address;
-      IF location.isguess THEN
-        location_distance := location.distance * 1.5;
-      ELSE
-        IF location.rank_address <= 12 THEN
-          -- for county and above, if we have an area consider that exact
-          -- (It would be nice to relax the constraint for places close to
-          --  the boundary but we'd need the exact geometry for that. Too
-          --  expensive.)
-          location_distance = 0;
-        ELSE
-          -- Below county level remain slightly fuzzy.
-          location_distance := location.distance * 0.5;
-        END IF;
-      END IF;
-    ELSE
-      CONTINUE WHEN location.keywords <@ location_keywords;
-    END IF;
-
-    IF location.distance < location_distance OR NOT location.isguess THEN
-      location_keywords := location.keywords;
-
-      location_isaddress := NOT address_havelevel[location.rank_address];
-      IF location_isaddress AND location.isguess AND location_parent IS NOT NULL THEN
-          location_isaddress := ST_Contains(location_parent,location.centroid);
-      END IF;
-
-      -- RAISE WARNING '% isaddress: %', location.place_id, location_isaddress;
-      -- Add it to the list of search terms
-      IF NOT %REVERSE-ONLY% THEN
-          nameaddress_vector := array_merge(nameaddress_vector, location.keywords::integer[]);
-      END IF;
-      INSERT INTO place_addressline (place_id, address_place_id, fromarea, isaddress, distance, cached_rank_address)
-        VALUES (NEW.place_id, location.place_id, true, location_isaddress, location.distance, location.rank_address);
-
-      IF location_isaddress THEN
-        -- add postcode if we have one
-        -- (If multiple postcodes are available, we end up with the highest ranking one.)
-        IF location.postcode is not null THEN
-            NEW.postcode = location.postcode;
-        END IF;
+                                      THEN NEW.geometry ELSE NEW.centroid END)
+    INTO NEW.parent_place_id, NEW.postcode, nameaddress_vector;

 
 

-        address_havelevel[location.rank_address] := true;
-        IF NOT location.isguess THEN
-          SELECT geometry FROM placex WHERE place_id = location.place_id INTO location_parent;
-        END IF;
-
-        IF location.rank_address > parent_place_id_rank THEN
-          NEW.parent_place_id = location.place_id;
-          parent_place_id_rank = location.rank_address;
-        END IF;
-
-      END IF;
-
-    --DEBUG: RAISE WARNING '  Terms: (%) %',location, nameaddress_vector;
-
-    END IF;
-
-  END LOOP;
-  --DEBUG: RAISE WARNING 'address computed';
+  --DEBUG: RAISE WARNING 'RETURN insert_addresslines: %, %, %', NEW.parent_place_id, NEW.postcode, nameaddress_vector;

 
   IF NEW.address is not null AND NEW.address ? 'postcode' 
      AND NEW.address->'postcode' not similar to '%(,|;)%' THEN
 
   IF NEW.address is not null AND NEW.address ? 'postcode' 
      AND NEW.address->'postcode' not similar to '%(,|;)%' THEN