Merge pull request #3575 from lonvia/improve-centroid

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

diff --git a/lib-sql/functions/placex_triggers.sql b/lib-sql/functions/placex_triggers.sql
index 5d32f496d501e3c6dd98e4276b1c6fb502fa628b..9d0d73b5197e23ad0452c05c877db2f7fb3bfb54 100644 (file)
--- a/lib-sql/functions/placex_triggers.sql
+++ b/lib-sql/functions/placex_triggers.sql
@@ -481,24 +481,20 @@ BEGIN
     name_vector := array_merge(name_vector, hnr_vector);
   END IF;
 
     name_vector := array_merge(name_vector, hnr_vector);
   END IF;
 

-  IF is_place_addr THEN
-    addr_place_ids := token_addr_place_search_tokens(token_info);
-    IF not addr_place_ids <@ parent_name_vector THEN
-      -- make sure addr:place terms are always searchable
-      nameaddress_vector := array_merge(nameaddress_vector, addr_place_ids);
-      -- If there is a housenumber, also add the place name as a name,
-      -- so we can search it by the usual housenumber+place algorithms.
-      IF hnr_vector is not null THEN
-        name_vector := array_merge(name_vector, addr_place_ids);
-      END IF;
-    END IF;
-  END IF;
-

   -- Cheating here by not recomputing all terms but simply using the ones
   -- from the parent object.
   nameaddress_vector := array_merge(nameaddress_vector, parent_name_vector);
   nameaddress_vector := array_merge(nameaddress_vector, parent_address_vector);
 
   -- Cheating here by not recomputing all terms but simply using the ones
   -- from the parent object.
   nameaddress_vector := array_merge(nameaddress_vector, parent_name_vector);
   nameaddress_vector := array_merge(nameaddress_vector, parent_address_vector);
 

+  -- make sure addr:place terms are always searchable
+  IF is_place_addr THEN
+    addr_place_ids := token_addr_place_search_tokens(token_info);
+    IF hnr_vector is not null AND not addr_place_ids <@ parent_name_vector
+    THEN
+      name_vector := array_merge(name_vector, hnr_vector);
+    END IF;
+    nameaddress_vector := array_merge(nameaddress_vector, addr_place_ids);
+  END IF;

 END;
 $$
 LANGUAGE plpgsql;
 END;
 $$
 LANGUAGE plpgsql;


@@ -672,7 +668,7 @@ BEGIN
   NEW.place_id := nextval('seq_place');
   NEW.indexed_status := 1; --STATUS_NEW
 
   NEW.place_id := nextval('seq_place');
   NEW.indexed_status := 1; --STATUS_NEW
 

-  NEW.centroid := ST_PointOnSurface(NEW.geometry);
+  NEW.centroid := get_center_point(NEW.geometry);

   NEW.country_code := lower(get_country_code(NEW.centroid));
 
   NEW.partition := get_partition(NEW.country_code);
   NEW.country_code := lower(get_country_code(NEW.centroid));
 
   NEW.partition := get_partition(NEW.country_code);


@@ -718,6 +714,12 @@ BEGIN
       NEW.country_code := NULL;
     END IF;
 
       NEW.country_code := NULL;
     END IF;
 

+    -- Simplify polygons with a very large memory footprint when they
+    -- do not take part in address computation.
+    IF NEW.rank_address = 0 THEN
+      NEW.geometry := simplify_large_polygons(NEW.geometry);
+    END IF;
+

   END IF;
 
   {% if debug %}RAISE WARNING 'placex_insert:END: % % % %',NEW.osm_type,NEW.osm_id,NEW.class,NEW.type;{% endif %}
   END IF;
 
   {% if debug %}RAISE WARNING 'placex_insert:END: % % % %',NEW.osm_type,NEW.osm_id,NEW.class,NEW.type;{% endif %}


@@ -725,10 +727,12 @@ BEGIN
 {% if not disable_diff_updates %}
   -- The following is not needed until doing diff updates, and slows the main index process down
 
 {% if not disable_diff_updates %}
   -- The following is not needed until doing diff updates, and slows the main index process down
 

-  IF NEW.rank_address > 0 THEN
+  IF NEW.rank_address between 2 and 27 THEN

     IF (ST_GeometryType(NEW.geometry) in ('ST_Polygon','ST_MultiPolygon') AND ST_IsValid(NEW.geometry)) THEN
       -- Performance: We just can't handle re-indexing for country level changes
     IF (ST_GeometryType(NEW.geometry) in ('ST_Polygon','ST_MultiPolygon') AND ST_IsValid(NEW.geometry)) THEN
       -- Performance: We just can't handle re-indexing for country level changes

-      IF st_area(NEW.geometry) < 1 THEN
+      IF (NEW.rank_address < 26 and st_area(NEW.geometry) < 1)
+         OR (NEW.rank_address >= 26 and st_area(NEW.geometry) < 0.01)
+      THEN

         -- mark items within the geometry for re-indexing
   --    RAISE WARNING 'placex poly insert: % % % %',NEW.osm_type,NEW.osm_id,NEW.class,NEW.type;
 
         -- mark items within the geometry for re-indexing
   --    RAISE WARNING 'placex poly insert: % % % %',NEW.osm_type,NEW.osm_id,NEW.class,NEW.type;
 


@@ -743,9 +747,11 @@ BEGIN
                     or name is not null
                     or (NEW.rank_address >= 16 and address ? 'place'));
       END IF;
                     or name is not null
                     or (NEW.rank_address >= 16 and address ? 'place'));
       END IF;

-    ELSE
+    ELSEIF ST_GeometryType(NEW.geometry) not in ('ST_LineString', 'ST_MultiLineString')
+           OR ST_Length(NEW.geometry) < 0.5
+    THEN

       -- mark nearby items for re-indexing, where 'nearby' depends on the features rank_search and is a complete guess :(
       -- mark nearby items for re-indexing, where 'nearby' depends on the features rank_search and is a complete guess :(

-      diameter := update_place_diameter(NEW.rank_search);
+      diameter := update_place_diameter(NEW.rank_address);

       IF diameter > 0 THEN
   --      RAISE WARNING 'placex point insert: % % % % %',NEW.osm_type,NEW.osm_id,NEW.class,NEW.type,diameter;
         IF NEW.rank_search >= 26 THEN
       IF diameter > 0 THEN
   --      RAISE WARNING 'placex point insert: % % % % %',NEW.osm_type,NEW.osm_id,NEW.class,NEW.type,diameter;
         IF NEW.rank_search >= 26 THEN


@@ -864,7 +870,7 @@ BEGIN
   END IF;
 
   -- Compute a preliminary centroid.
   END IF;
 
   -- Compute a preliminary centroid.

-  NEW.centroid := ST_PointOnSurface(NEW.geometry);
+  NEW.centroid := get_center_point(NEW.geometry);

 
     -- recalculate country and partition
   IF NEW.rank_search = 4 AND NEW.address is not NULL AND NEW.address ? 'country' THEN
 
     -- recalculate country and partition
   IF NEW.rank_search = 4 AND NEW.address is not NULL AND NEW.address ? 'country' THEN


@@ -1259,6 +1265,8 @@ BEGIN
     END IF;
   ELSEIF NEW.rank_address > 25 THEN
     max_rank := 25;
     END IF;
   ELSEIF NEW.rank_address > 25 THEN
     max_rank := 25;

+  ELSEIF NEW.class in ('place','boundary') and NEW.type in ('postcode','postal_code') THEN
+    max_rank := NEW.rank_search;

   ELSE
     max_rank := NEW.rank_address;
   END IF;
   ELSE
     max_rank := NEW.rank_address;
   END IF;


@@ -1395,6 +1403,8 @@ BEGIN
 
   {% if debug %}RAISE WARNING 'placex_delete:12 % %',OLD.osm_type,OLD.osm_id;{% endif %}
 
 
   {% if debug %}RAISE WARNING 'placex_delete:12 % %',OLD.osm_type,OLD.osm_id;{% endif %}
 

+  UPDATE location_postcode SET indexed_status = 2 WHERE parent_place_id = OLD.place_id;
+

   RETURN OLD;
 
 END;
   RETURN OLD;
 
 END;