X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/a1158feeb8ef3637ee7c2e1b8ee74cdce579584e..56201feb28d8393f26d683e65a42b4daaea8f895:/lib-sql/functions/placex_triggers.sql

diff --git a/lib-sql/functions/placex_triggers.sql b/lib-sql/functions/placex_triggers.sql
index 6c23fd67..99eebe12 100644
--- a/lib-sql/functions/placex_triggers.sql
+++ b/lib-sql/functions/placex_triggers.sql
@@ -2,7 +2,7 @@
 --
 -- This file is part of Nominatim. (https://nominatim.org)
 --
--- Copyright (C) 2022 by the Nominatim developer community.
+-- Copyright (C) 2024 by the Nominatim developer community.
 -- For a full list of authors see the git log.
 
 -- Trigger functions for the placex table.
@@ -88,12 +88,18 @@ BEGIN
       -- Add all names from the place nodes that deviate from the name
       -- in the relation with the prefix '_place_'. Deviation means that
       -- either the value is different or a given key is missing completely
-      SELECT hstore(array_agg('_place_' || key), array_agg(value)) INTO extra_names
-        FROM each(location.name - result.name);
-      {% if debug %}RAISE WARNING 'Extra names: %', extra_names;{% endif %}
+      IF result.name is null THEN
+        SELECT hstore(array_agg('_place_' || key), array_agg(value))
+          INTO result.name
+          FROM each(location.name);
+      ELSE
+        SELECT hstore(array_agg('_place_' || key), array_agg(value)) INTO extra_names
+          FROM each(location.name - result.name);
+        {% if debug %}RAISE WARNING 'Extra names: %', extra_names;{% endif %}
 
-      IF extra_names is not null THEN
-          result.name := result.name || extra_names;
+        IF extra_names is not null THEN
+            result.name := result.name || extra_names;
+        END IF;
       END IF;
 
       {% if debug %}RAISE WARNING 'Final names: %', result.name;{% endif %}
@@ -107,12 +113,17 @@ LANGUAGE plpgsql STABLE;
 
 
 CREATE OR REPLACE FUNCTION find_associated_street(poi_osm_type CHAR(1),
-                                                  poi_osm_id BIGINT)
+                                                  poi_osm_id BIGINT,
+                                                  bbox GEOMETRY)
   RETURNS BIGINT
   AS $$
 DECLARE
   location RECORD;
   parent RECORD;
+  result BIGINT;
+  distance FLOAT;
+  new_distance FLOAT;
+  waygeom GEOMETRY;
 BEGIN
   FOR location IN
     SELECT members FROM planet_osm_rels
@@ -123,19 +134,34 @@ BEGIN
     FOR i IN 1..array_upper(location.members, 1) BY 2 LOOP
       IF location.members[i+1] = 'street' THEN
         FOR parent IN
-          SELECT place_id from placex
+          SELECT place_id, geometry
+           FROM placex
            WHERE osm_type = upper(substring(location.members[i], 1, 1))::char(1)
                  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;
+          -- Find the closest 'street' member.
+          -- Avoid distance computation for the frequent case where there is
+          -- only one street member.
+          IF waygeom is null THEN
+            result := parent.place_id;
+            waygeom := parent.geometry;
+          ELSE
+            distance := coalesce(distance, ST_Distance(waygeom, bbox));
+            new_distance := ST_Distance(parent.geometry, bbox);
+            IF new_distance < distance THEN
+              distance := new_distance;
+              result := parent.place_id;
+              waygeom := parent.geometry;
+            END IF;
+          END IF;
         END LOOP;
       END IF;
     END LOOP;
   END LOOP;
 
-  RETURN NULL;
+  RETURN result;
 END;
 $$
 LANGUAGE plpgsql STABLE;
@@ -162,7 +188,7 @@ BEGIN
   {% if debug %}RAISE WARNING 'finding street for % %', poi_osm_type, poi_osm_id;{% endif %}
 
   -- Is this object part of an associatedStreet relation?
-  parent_place_id := find_associated_street(poi_osm_type, poi_osm_id);
+  parent_place_id := find_associated_street(poi_osm_type, poi_osm_id, bbox);
 
   IF parent_place_id is null THEN
     parent_place_id := find_parent_for_address(token_info, poi_partition, bbox);
@@ -185,7 +211,7 @@ BEGIN
         RETURN location.place_id;
       END IF;
 
-      parent_place_id := find_associated_street('W', location.osm_id);
+      parent_place_id := find_associated_street('W', location.osm_id, bbox);
     END LOOP;
   END IF;
 
@@ -197,6 +223,7 @@ BEGIN
         SELECT place_id FROM placex
          WHERE bbox && geometry AND _ST_Covers(geometry, ST_Centroid(bbox))
                AND rank_address between 5 and 25
+               AND ST_GeometryType(geometry) in ('ST_Polygon','ST_MultiPolygon')
          ORDER BY rank_address desc
       LOOP
         RETURN location.place_id;
@@ -212,6 +239,7 @@ BEGIN
         SELECT place_id FROM placex
          WHERE bbox && geometry AND _ST_Covers(geometry, ST_Centroid(bbox))
                AND rank_address between 5 and 25
+               AND ST_GeometryType(geometry) in ('ST_Polygon','ST_MultiPolygon')
         ORDER BY rank_address desc
       LOOP
         RETURN location.place_id;
@@ -275,7 +303,9 @@ BEGIN
 
   -- 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
+  IF bnd.extratags ? 'place' and bnd.extratags->'place' != 'postcode'
+     and bnd_name is not null
+  THEN
     FOR linked_placex IN
       SELECT * FROM placex
       WHERE (position(lower(name->'name') in bnd_name) > 0
@@ -284,7 +314,6 @@ BEGIN
         AND placex.osm_type = 'N'
         AND (placex.linked_place_id is null or placex.linked_place_id = bnd.place_id)
         AND placex.rank_search < 26 -- needed to select the right index
-        AND placex.type != 'postcode'
         AND ST_Covers(bnd.geometry, placex.geometry)
     LOOP
       {% if debug %}RAISE WARNING 'Found type-matching place node %', linked_placex.osm_id;{% endif %}
@@ -649,6 +678,12 @@ BEGIN
       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 %}
@@ -765,6 +800,9 @@ BEGIN
   result := deleteLocationArea(NEW.partition, NEW.place_id, NEW.rank_search);
 
   NEW.extratags := NEW.extratags - 'linked_place'::TEXT;
+  IF NEW.extratags = ''::hstore THEN
+    NEW.extratags := NULL;
+  END IF;
 
   -- NEW.linked_place_id contains the precomputed linkee. Save this and restore
   -- the previous link status.
@@ -846,7 +884,8 @@ BEGIN
       FROM placex
       WHERE osm_type = 'R' and class = 'boundary' and type = 'administrative'
             and admin_level < NEW.admin_level and admin_level > 3
-            and rank_address > 0
+            and rank_address between 1 and 25 -- for index selection
+            and ST_GeometryType(geometry) in ('ST_Polygon','ST_MultiPolygon') -- for index selection
             and geometry && NEW.centroid and _ST_Covers(geometry, NEW.centroid)
       ORDER BY admin_level desc LIMIT 1
     LOOP
@@ -961,7 +1000,7 @@ BEGIN
 
   NEW.importance := null;
   SELECT wikipedia, importance
-    FROM compute_importance(NEW.extratags, NEW.country_code, NEW.osm_type, NEW.osm_id)
+    FROM compute_importance(NEW.extratags, NEW.country_code, NEW.rank_search, NEW.centroid)
     INTO NEW.wikipedia,NEW.importance;
 
 {% if debug %}RAISE WARNING 'Importance computed from wikipedia: %', NEW.importance;{% endif %}
@@ -972,7 +1011,7 @@ BEGIN
 
     {% if debug %}RAISE WARNING 'finding street for % %', NEW.osm_type, NEW.osm_id;{% endif %}
     NEW.parent_place_id := null;
-    is_place_address := coalesce(not NEW.address ? 'street' and NEW.address ? 'place', FALSE);
+    is_place_address := not token_is_street_address(NEW.token_info);
 
     -- We have to find our parent road.
     NEW.parent_place_id := find_parent_for_poi(NEW.osm_type, NEW.osm_id,
@@ -989,7 +1028,7 @@ BEGIN
       SELECT p.country_code, p.postcode, p.name FROM placex p
        WHERE p.place_id = NEW.parent_place_id INTO location;
 
-      IF is_place_address THEN
+      IF is_place_address and NEW.address ? 'place' THEN
         -- Check if the addr:place tag is part of the parent name
         SELECT count(*) INTO i
           FROM svals(location.name) AS pname WHERE pname = NEW.address->'place';
@@ -1043,7 +1082,7 @@ BEGIN
   IF linked_place is not null THEN
     -- Recompute the ranks here as the ones from the linked place might
     -- have been shifted to accommodate surrounding boundaries.
-    SELECT place_id, osm_id, class, type, extratags,
+    SELECT place_id, osm_id, class, type, extratags, rank_search,
            centroid, geometry,
            (compute_place_rank(country_code, osm_type, class, type, admin_level,
                               (extratags->'capital') = 'yes', null)).*
@@ -1084,7 +1123,7 @@ BEGIN
 
     SELECT wikipedia, importance
       FROM compute_importance(location.extratags, NEW.country_code,
-                              'N', location.osm_id)
+                              location.rank_search, NEW.centroid)
       INTO linked_wikipedia,linked_importance;
 
     -- Use the maximum importance if one could be computed from the linked object.
@@ -1096,7 +1135,7 @@ BEGIN
   ELSE
     -- No linked place? As a last resort check if the boundary is tagged with
     -- a place type and adapt the rank address.
-    IF NEW.rank_address > 0 and NEW.extratags ? 'place' THEN
+    IF NEW.rank_address between 4 and 25 and NEW.extratags ? 'place' THEN
       SELECT address_rank INTO place_address_level
         FROM compute_place_rank(NEW.country_code, 'A', 'place',
                                 NEW.extratags->'place', 0::SMALLINT, False, null);
@@ -1206,8 +1245,14 @@ BEGIN
     {% endif %}
   END IF;
 
-  IF NEW.postcode is null AND NEW.rank_search > 8 THEN
-    NEW.postcode := get_nearest_postcode(NEW.country_code, NEW.geometry);
+  IF NEW.postcode is null AND NEW.rank_search > 8
+     AND (NEW.rank_address > 0
+          OR ST_GeometryType(NEW.geometry) not in ('ST_LineString','ST_MultiLineString')
+          OR ST_Length(NEW.geometry) < 0.02)
+  THEN
+    NEW.postcode := get_nearest_postcode(NEW.country_code,
+                                         CASE WHEN NEW.rank_address > 25
+                                              THEN NEW.centroid ELSE NEW.geometry END);
   END IF;
 
   {% if debug %}RAISE WARNING 'place update % % finished.', NEW.osm_type, NEW.osm_id;{% endif %}