X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/be65c8303f18d0f92bbf5bc9558f8789d33f21d9..83b4b8d9c1c1051d894560ff0c1b14bd4f4359e5:/lib-sql/functions/placex_triggers.sql

diff --git a/lib-sql/functions/placex_triggers.sql b/lib-sql/functions/placex_triggers.sql
index 8ae8cf39..9463bb27 100644
--- a/lib-sql/functions/placex_triggers.sql
+++ b/lib-sql/functions/placex_triggers.sql
@@ -1,3 +1,10 @@
+-- SPDX-License-Identifier: GPL-2.0-only
+--
+-- This file is part of Nominatim. (https://nominatim.org)
+--
+-- Copyright (C) 2022 by the Nominatim developer community.
+-- For a full list of authors see the git log.
+
 -- Trigger functions for the placex table.
 
 -- Information returned by update preparation.
@@ -19,12 +26,13 @@ CREATE OR REPLACE FUNCTION placex_indexing_prepare(p placex)
 DECLARE
   location RECORD;
   result prepare_update_info;
+  extra_names HSTORE;
 BEGIN
   -- For POI nodes, check if the address should be derived from a surrounding
   -- building.
-  IF p.rank_search < 30 OR p.osm_type != 'N' OR p.address is not null THEN
+  IF p.rank_search < 30 OR p.osm_type != 'N' THEN
     result.address := p.address;
-  ELSE
+  ELSEIF p.address is null THEN
     -- The additional && condition works around the misguided query
     -- planner of postgis 3.0.
     SELECT placex.address || hstore('_inherited', '') INTO result.address
@@ -35,10 +43,27 @@ BEGIN
            and (placex.address ? 'housenumber' or placex.address ? 'street' or placex.address ? 'place')
            and rank_search = 30 AND ST_GeometryType(geometry) in ('ST_Polygon','ST_MultiPolygon')
      LIMIT 1;
+  ELSE
+    result.address := p.address;
+    -- See if we can inherit addtional address tags from an interpolation.
+    -- These will become permanent.
+    FOR location IN
+      SELECT (address - 'interpolation'::text - 'housenumber'::text) as address
+        FROM place, planet_osm_ways w
+        WHERE place.osm_type = 'W' and place.address ? 'interpolation'
+              and place.geometry && p.geometry
+              and place.osm_id = w.id
+              and p.osm_id = any(w.nodes)
+    LOOP
+      result.address := location.address || result.address;
+    END LOOP;
   END IF;
 
+  -- remove internal and derived names
   result.address := result.address - '_unlisted_place'::TEXT;
-  result.name := p.name;
+  SELECT hstore(array_agg(key), array_agg(value)) INTO result.name
+    FROM each(p.name) WHERE key not like '\_%';
+
   result.class := p.class;
   result.type := p.type;
   result.country_code := p.country_code;
@@ -51,8 +76,20 @@ BEGIN
   IF location.place_id is not NULL THEN
     result.linked_place_id := location.place_id;
 
-    IF NOT location.name IS NULL THEN
-      result.name := location.name || result.name;
+    IF location.name is not NULL THEN
+      {% if debug %}RAISE WARNING 'Names original: %, location: %', result.name, location.name;{% endif %}
+      -- 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 extra_names is not null THEN
+          result.name := result.name || extra_names;
+      END IF;
+
+      {% if debug %}RAISE WARNING 'Final names: %', result.name;{% endif %}
     END IF;
   END IF;
 
@@ -124,18 +161,6 @@ BEGIN
   END IF;
 
   IF parent_place_id is null and poi_osm_type = 'N' THEN
-    -- Is this node part of an interpolation?
-    FOR location 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
-      {% if debug %}RAISE WARNING 'Get parent from interpolation: %', location.parent_place_id;{% endif %}
-      RETURN location.parent_place_id;
-    END LOOP;
-
     FOR location IN
       SELECT p.place_id, p.osm_id, p.rank_search, p.address,
              coalesce(p.centroid, ST_Centroid(p.geometry)) as centroid
@@ -333,9 +358,10 @@ BEGIN
     WHERE s.place_id = parent_place_id;
 
   FOR addr_item IN
-    SELECT (get_addr_tag_rank(key, country)).*, key,
+    SELECT ranks.*, key,
            token_get_address_search_tokens(token_info, key) as search_tokens
-      FROM token_get_address_keys(token_info) as key
+      FROM token_get_address_keys(token_info) as key,
+           LATERAL get_addr_tag_rank(key, country) as ranks
       WHERE not token_get_address_search_tokens(token_info, key) <@ parent_address_vector
   LOOP
     addr_place := get_address_place(in_partition, geometry,
@@ -447,10 +473,12 @@ BEGIN
   address_havelevel := array_fill(false, ARRAY[maxrank]);
 
   FOR location IN
-    SELECT (get_address_place(partition, geometry, from_rank, to_rank,
-                              extent, token_info, key)).*, key
-      FROM (SELECT (get_addr_tag_rank(key, country)).*, key
-              FROM token_get_address_keys(token_info) as key) x
+    SELECT apl.*, key
+      FROM (SELECT extra.*, key
+              FROM token_get_address_keys(token_info) as key,
+                   LATERAL get_addr_tag_rank(key, country) as extra) x,
+           LATERAL get_address_place(partition, geometry, from_rank, to_rank,
+                              extent, token_info, key) as apl
       ORDER BY rank_address, distance, isguess desc
   LOOP
     IF location.place_id is null THEN
@@ -619,10 +647,7 @@ BEGIN
 {% if not disable_diff_updates %}
   -- The following is not needed until doing diff updates, and slows the main index process down
 
-  IF NEW.osm_type = 'N' and NEW.rank_search > 28 THEN
-      -- might be part of an interpolation
-      result := osmline_reinsert(NEW.osm_id, NEW.geometry);
-  ELSEIF NEW.rank_address > 0 THEN
+  IF NEW.rank_address > 0 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_area(NEW.geometry) < 1 THEN
@@ -649,7 +674,7 @@ BEGIN
           -- roads may cause reparenting for >27 rank places
           update placex set indexed_status = 2 where indexed_status = 0 and rank_search > NEW.rank_search and ST_DWithin(placex.geometry, NEW.geometry, diameter);
           -- reparenting also for OSM Interpolation Lines (and for Tiger?)
-          update location_property_osmline set indexed_status = 2 where indexed_status = 0 and ST_DWithin(location_property_osmline.linegeo, NEW.geometry, diameter);
+          update location_property_osmline set indexed_status = 2 where indexed_status = 0 and startnumber is not null and ST_DWithin(location_property_osmline.linegeo, NEW.geometry, diameter);
         ELSEIF NEW.rank_search >= 16 THEN
           -- up to rank 16, street-less addresses may need reparenting
           update placex set indexed_status = 2 where indexed_status = 0 and rank_search > NEW.rank_search and ST_DWithin(placex.geometry, NEW.geometry, diameter) and (rank_search < 28 or name is not null or address ? 'place');
@@ -1038,16 +1063,22 @@ BEGIN
      AND NEW.class = 'boundary' AND NEW.type = 'administrative'
      AND NEW.country_code IS NOT NULL AND NEW.osm_type = 'R'
   THEN
-    -- Update the list of country names. Adding an additional sanity
-    -- check here: make sure the country does overlap with the area where
-    -- we expect it to be as per static country grid.
+    -- Update the list of country names.
+    -- Only take the name from the largest area for the given country code
+    -- in the hope that this is the authoritive one.
+    -- Also replace any old names so that all mapping mistakes can
+    -- be fixed through regular OSM updates.
     FOR location IN
-      SELECT country_code FROM country_osm_grid
-       WHERE ST_Covers(geometry, NEW.centroid) and country_code = NEW.country_code
+      SELECT osm_id FROM placex
+       WHERE rank_search = 4 and osm_type = 'R'
+             and country_code = NEW.country_code
+       ORDER BY ST_Area(geometry) desc
        LIMIT 1
     LOOP
-      {% if debug %}RAISE WARNING 'Updating names for country '%' with: %', NEW.country_code, NEW.name;{% endif %}
-      UPDATE country_name SET name = name || NEW.name WHERE country_code = NEW.country_code;
+      IF location.osm_id = NEW.osm_id THEN
+        {% if debug %}RAISE WARNING 'Updating names for country '%' with: %', NEW.country_code, NEW.name;{% endif %}
+        UPDATE country_name SET derived_name = NEW.name WHERE country_code = NEW.country_code;
+      END IF;
     END LOOP;
   END IF;
 
