Merge pull request #1926 from lonvia/speed-up-location-lookup

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

diff --git a/sql/functions/placex_triggers.sql b/sql/functions/placex_triggers.sql
index f9d5b60f4bbcf1d45b9b0b2d51ccc07c0e9587ca..38b3421f7bff8f7c60a35c337d358c267707e1c1 100644 (file)
--- a/sql/functions/placex_triggers.sql
+++ b/sql/functions/placex_triggers.sql
@@ -574,11 +574,18 @@ BEGIN
          where linked_place_id = NEW.place_id;
   -- update not necessary for osmline, cause linked_place_id does not exist
 
+  NEW.extratags := NEW.extratags - 'linked_place'::TEXT;
+
   IF NEW.linked_place_id is not null THEN
     --DEBUG: RAISE WARNING 'place already linked to %', NEW.linked_place_id;
     RETURN NEW;
   END IF;
 
+  -- Speed up searches - just use the centroid of the feature
+  -- cheaper but less acurate
+  NEW.centroid := ST_PointOnSurface(NEW.geometry);
+  --DEBUG: RAISE WARNING 'Computing preliminary centroid at %',ST_AsText(NEW.centroid);
+
   -- recompute the ranks, they might change when linking changes
   SELECT * INTO NEW.rank_search, NEW.rank_address
     FROM compute_place_rank(NEW.country_code,
@@ -589,8 +596,8 @@ BEGIN
                             (NEW.extratags->'capital') = 'yes',
                             NEW.address->'postcode');
   -- We must always increase the address level relative to the admin boundary.
-  IF NEW.class = 'boundary' and NEW.type = 'administrative' THEN
-    parent_address_level := get_parent_address_level(NEW.geometry, NEW.admin_level);
+  IF NEW.class = 'boundary' and NEW.type = 'administrative' and NEW.osm_type = 'R' THEN
+    parent_address_level := get_parent_address_level(NEW.centroid, NEW.admin_level);
     IF parent_address_level >= NEW.rank_address THEN
       IF parent_address_level >= 24 THEN
         NEW.rank_address := 25;
@@ -630,11 +637,6 @@ BEGIN
       END IF;
   END IF;
 
-  -- Speed up searches - just use the centroid of the feature
-  -- cheaper but less acurate
-  NEW.centroid := ST_PointOnSurface(NEW.geometry);
-  --DEBUG: RAISE WARNING 'Computing preliminary centroid at %',ST_AsText(NEW.centroid);
-
   NEW.postcode := null;
 
   -- recalculate country and partition
@@ -925,10 +927,14 @@ DECLARE
 BEGIN
   -- RAISE WARNING 'placex_delete % %',OLD.osm_type,OLD.osm_id;
 
-  update placex set linked_place_id = null, indexed_status = 2 where linked_place_id = OLD.place_id and indexed_status = 0;
-  --DEBUG: RAISE WARNING 'placex_delete:01 % %',OLD.osm_type,OLD.osm_id;
-  update placex set linked_place_id = null where linked_place_id = OLD.place_id;
-  --DEBUG: RAISE WARNING 'placex_delete:02 % %',OLD.osm_type,OLD.osm_id;
+  IF OLD.linked_place_id is null THEN
+    update placex set linked_place_id = null, indexed_status = 2 where linked_place_id = OLD.place_id and indexed_status = 0;
+    --DEBUG: RAISE WARNING 'placex_delete:01 % %',OLD.osm_type,OLD.osm_id;
+    update placex set linked_place_id = null where linked_place_id = OLD.place_id;
+    --DEBUG: RAISE WARNING 'placex_delete:02 % %',OLD.osm_type,OLD.osm_id;
+  ELSE
+    update placex set indexed_status = 2 where place_id = OLD.linked_place_id and indexed_status = 0;
+  END IF;
 
   IF OLD.rank_address < 30 THEN