link nodes and relations using name->'name' index lookup instead of search_name

[nominatim.git] / sql / functions.sql

diff --git a/sql/functions.sql b/sql/functions.sql
index b61f52b27640ac571edaf846b2de1ff180a48187..3c9da6a5defac4b57334764e7149100de0552a4e 100644 (file)
--- a/sql/functions.sql
+++ b/sql/functions.sql
@@ -909,7 +909,12 @@ BEGIN
   NEW.place_id := nextval('seq_place');
   NEW.indexed_status := 1; --STATUS_NEW
 
-  NEW.country_code := lower(get_country_code(NEW.geometry, NEW.country_code));
+  IF NEW.rank_search >= 4 THEN
+    NEW.country_code := lower(get_country_code(NEW.geometry, NEW.country_code));
+  ELSE
+    NEW.country_code := NULL;
+  END IF;
+
   NEW.partition := get_partition(NEW.geometry, NEW.country_code);
   NEW.geometry_sector := geometry_sector(NEW.partition, NEW.geometry);
 
@@ -920,7 +925,7 @@ BEGIN
       IF NEW.name ? 'name' AND NOT NEW.name ? ('name:'||default_language) THEN
         NEW.name := NEW.name || (('name:'||default_language) => (NEW.name -> 'name'));
       ELSEIF NEW.name ? ('name:'||default_language) AND NOT NEW.name ? 'name' THEN
-        NEW.name := NEW.name || ('name' => (NEW.name -> 'name:'||default_language));
+        NEW.name := NEW.name || ('name' => (NEW.name -> ('name:'||default_language)));
       END IF;
     END IF;
   END IF;
@@ -942,6 +947,11 @@ BEGIN
     -- By doing in postgres we have the country available to us - currently only used for postcode
     IF NEW.class in ('place','boundary') AND NEW.type in ('postcode','postal_code') THEN
 
+        IF NEW.postcode IS NULL THEN
+            -- most likely just a part of a multipolygon postcode boundary, throw it away
+            RETURN NULL;
+        END IF;
+
         NEW.name := 'ref'=>NEW.postcode;
 
         IF NEW.country_code = 'gb' THEN
@@ -1032,6 +1042,10 @@ BEGIN
       ELSEIF NEW.type in ('farm','locality','islet','isolated_dwelling','mountain_pass') THEN
         NEW.rank_search := 20;
         NEW.rank_address := 0;
+        -- Irish townlands, tagged as place=locality and locality=townland
+        IF (NEW.extratags -> 'locality') = 'townland' THEN
+          NEW.rank_address := 20;
+        END IF;
       ELSEIF NEW.type in ('hall_of_residence','neighbourhood','housing_estate','nature_reserve') THEN
         NEW.rank_search := 22;
         NEW.rank_address := 22;
@@ -1247,8 +1261,12 @@ BEGIN
     END IF;
 
     -- reclaculate country and partition (should probably have a country_code and calculated_country_code as seperate fields)
-    SELECT country_code from place where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type = NEW.type INTO NEW.country_code;
-    NEW.country_code := lower(get_country_code(NEW.geometry, NEW.country_code));
+    IF NEW.rank_search >= 4 THEN
+      SELECT country_code from place where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type = NEW.type INTO NEW.country_code;
+      NEW.country_code := lower(get_country_code(NEW.geometry, NEW.country_code));
+    ELSE
+      NEW.country_code := NULL;
+    END IF;
     NEW.partition := get_partition(NEW.geometry, NEW.country_code);
     NEW.geometry_sector := geometry_sector(NEW.partition, NEW.geometry);
 
@@ -1271,7 +1289,7 @@ BEGIN
         IF NEW.name ? 'name' AND NOT NEW.name ? ('name:'||default_language) THEN
           NEW.name := NEW.name || (('name:'||default_language) => (NEW.name -> 'name'));
         ELSEIF NEW.name ? ('name:'||default_language) AND NOT NEW.name ? 'name' THEN
-          NEW.name := NEW.name || ('name' => (NEW.name -> 'name:'||default_language));
+          NEW.name := NEW.name || ('name' => (NEW.name -> ('name:'||default_language)));
         END IF;
       END IF;
     END IF;
@@ -1514,14 +1532,14 @@ BEGIN
 
       -- not found one yet? how about doing a name search
       IF NEW.centroid IS NULL THEN
-        FOR linkedPlacex IN select placex.* from search_name join placex using (place_id) WHERE
-          search_name.name_vector @> ARRAY[getorcreate_name_id(make_standard_name(NEW.name->'name'))] 
-          AND search_name.search_rank = NEW.rank_search
-          AND search_name.place_id != NEW.place_id
+        FOR linkedPlacex IN select placex.* from placex WHERE
+          make_standard_name(name->'name') = make_standard_name(NEW.name->'name')
+          AND placex.rank_search = NEW.rank_search
+          AND placex.place_id != NEW.place_id
           AND osm_type = 'N'
-          AND NEW.name->'name' = placex.name->'name'
           AND st_contains(NEW.geometry, placex.geometry)
         LOOP
+
           -- If we don't already have one use this as the centre point of the geometry
           IF NEW.centroid IS NULL THEN
             NEW.centroid := coalesce(linkedPlacex.centroid,st_centroid(linkedPlacex.geometry));