US TIGER data 2021 released

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

diff --git a/lib-sql/functions/place_triggers.sql b/lib-sql/functions/place_triggers.sql
index dd0f16623e55cacecbd6f7c5baddc611b5ac033a..014c8cd75ea4502373ce12575a99819aa857ceae 100644 (file)
--- a/lib-sql/functions/place_triggers.sql
+++ b/lib-sql/functions/place_triggers.sql
@@ -92,19 +92,32 @@ BEGIN
     -- Get the existing place_id
     select * from placex where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type = NEW.type INTO existingplacex;
 
     -- Get the existing place_id
     select * from placex where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type = NEW.type INTO existingplacex;
 

+    -- Handle a place changing type by removing the old data
+    -- My generated 'place' types are causing havok because they overlap with real keys
+    -- TODO: move them to their own special purpose key/class to avoid collisions
+    IF existing.osm_type IS NULL THEN
+      DELETE FROM place where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class;
+    END IF;
+

     -- Pure postcodes are never queried from placex so we don't add them.
     -- location_postcodes is filled from the place table directly.
     IF NEW.class = 'place' AND NEW.type = 'postcode' THEN
       -- Remove old placex entry.
       DELETE FROM placex where osm_type = NEW.osm_type and osm_id = NEW.osm_id;
     -- Pure postcodes are never queried from placex so we don't add them.
     -- location_postcodes is filled from the place table directly.
     IF NEW.class = 'place' AND NEW.type = 'postcode' THEN
       -- Remove old placex entry.
       DELETE FROM placex where osm_type = NEW.osm_type and osm_id = NEW.osm_id;

-      RETURN NEW;
-    END IF;

 
 

-    -- Handle a place changing type by removing the old data
-    -- My generated 'place' types are causing havok because they overlap with real keys
-    -- TODO: move them to their own special purpose key/class to avoid collisions
-    IF existing.osm_type IS NULL THEN
-      DELETE FROM place where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class;
+      IF existing.osm_type IS NOT NULL THEN
+        IF coalesce(existing.address, ''::hstore) != coalesce(NEW.address, ''::hstore)
+           OR existing.geometry::text != NEW.geometry::text
+        THEN
+
+          update place set address = NEW.address, geometry = NEW.geometry
+            where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type = NEW.type;
+        END IF;
+
+        RETURN NULL;
+      END IF;
+
+      RETURN NEW;

     END IF;
 
     {% if debug %}RAISE WARNING 'Existing: %',existing.osm_id;{% endif %}
     END IF;
 
     {% if debug %}RAISE WARNING 'Existing: %',existing.osm_id;{% endif %}