add unit tests for lookup function

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

diff --git a/lib-sql/functions/interpolation.sql b/lib-sql/functions/interpolation.sql
index 64775678bb26f8159969ca1144a64aa05ab18ce3..9bb9102172b81169028ba302a52fa8d7b7676a0b 100644 (file)
--- a/lib-sql/functions/interpolation.sql
+++ b/lib-sql/functions/interpolation.sql
@@ -15,7 +15,7 @@ DECLARE
   location RECORD;
   waynodes BIGINT[];
 BEGIN
-  IF akeys(in_address) != ARRAY['interpolation'] THEN
+  IF in_address ? 'street' or in_address ? 'place' THEN
     RETURN in_address;
   END IF;
 
@@ -52,7 +52,9 @@ BEGIN
 
   IF parent_place_id is null THEN
     FOR location IN SELECT place_id FROM placex
-        WHERE ST_DWithin(geom, placex.geometry, 0.001) and placex.rank_search = 26
+        WHERE ST_DWithin(geom, placex.geometry, 0.001)
+              and placex.rank_search = 26
+              and placex.osm_type = 'W' -- needed for index selection
         ORDER BY CASE WHEN ST_GeometryType(geom) = 'ST_Line' THEN
                   (ST_distance(placex.geometry, ST_LineInterpolatePoint(geom,0))+
                   ST_distance(placex.geometry, ST_LineInterpolatePoint(geom,0.5))+
@@ -82,27 +84,35 @@ CREATE OR REPLACE FUNCTION reinsert_interpolation(way_id BIGINT, addr HSTORE,
 DECLARE
   existing BIGINT[];
 BEGIN
-  -- Get the existing entry from the interpolation table.
-  SELECT array_agg(place_id) INTO existing
-    FROM location_property_osmline WHERE osm_id = way_id;
-
-  IF existing IS NULL or array_length(existing, 1) = 0 THEN
-    INSERT INTO location_property_osmline (osm_id, address, linegeo)
-      VALUES (way_id, addr, geom);
+  IF addr is NULL OR NOT addr ? 'interpolation'
+         OR NOT (addr->'interpolation' in ('odd', 'even', 'all')
+                 or addr->'interpolation' similar to '[1-9]')
+  THEN
+    -- the new interpolation is illegal, simply remove existing entries
+    DELETE FROM location_property_osmline WHERE osm_id = way_id;
   ELSE
-    -- Update the interpolation table:
-    --   The first entry gets the original data, all other entries
-    --   are removed and will be recreated on indexing.
-    --   (An interpolation can be split up, if it has more than 2 address nodes)
-    UPDATE location_property_osmline
-      SET address = addr,
-          linegeo = geom,
-          startnumber = null,
-          indexed_status = 1
-      WHERE place_id = existing[1];
-    IF array_length(existing, 1) > 1 THEN
-      DELETE FROM location_property_osmline
-        WHERE place_id = any(existing[2:]);
+    -- Get the existing entry from the interpolation table.
+    SELECT array_agg(place_id) INTO existing
+      FROM location_property_osmline WHERE osm_id = way_id;
+
+    IF existing IS NULL or array_length(existing, 1) = 0 THEN
+      INSERT INTO location_property_osmline (osm_id, address, linegeo)
+        VALUES (way_id, addr, geom);
+    ELSE
+      -- Update the interpolation table:
+      --   The first entry gets the original data, all other entries
+      --   are removed and will be recreated on indexing.
+      --   (An interpolation can be split up, if it has more than 2 address nodes)
+      UPDATE location_property_osmline
+        SET address = addr,
+            linegeo = geom,
+            startnumber = null,
+            indexed_status = 1
+        WHERE place_id = existing[1];
+      IF array_length(existing, 1) > 1 THEN
+        DELETE FROM location_property_osmline
+          WHERE place_id = any(existing[2:]);
+      END IF;
     END IF;
   END IF;
 
@@ -156,7 +166,6 @@ DECLARE
   linegeo GEOMETRY;
   splitline GEOMETRY;
   sectiongeo GEOMETRY;
-  interpol_postcode TEXT;
   postcode TEXT;
   stepmod SMALLINT;
 BEGIN
@@ -174,8 +183,6 @@ BEGIN
                                                  ST_PointOnSurface(NEW.linegeo),
                                                  NEW.linegeo);
 
-  interpol_postcode := token_normalized_postcode(NEW.address->'postcode');
-
   NEW.token_info := token_strip_info(NEW.token_info);
   IF NEW.address ? '_inherited' THEN
     NEW.address := hstore('interpolation', NEW.address->'interpolation');
@@ -207,13 +214,18 @@ BEGIN
     FOR nextnode IN
       SELECT DISTINCT ON (nodeidpos)
           osm_id, address, geometry,
+          -- Take the postcode from the node only if it has a housenumber itself.
+          -- Note that there is a corner-case where the node has a wrongly
+          -- formatted postcode and therefore 'postcode' contains a derived
+          -- variant.
+          CASE WHEN address ? 'postcode' THEN placex.postcode ELSE NULL::text END as postcode,
           substring(address->'housenumber','[0-9]+')::integer as hnr
         FROM placex, generate_series(1, array_upper(waynodes, 1)) nodeidpos
         WHERE osm_type = 'N' and osm_id = waynodes[nodeidpos]::BIGINT
               and address is not NULL and address ? 'housenumber'
         ORDER BY nodeidpos
     LOOP
-      RAISE WARNING 'processing point % (%)', nextnode.hnr, ST_AsText(nextnode.geometry);
+      {% if debug %}RAISE WARNING 'processing point % (%)', nextnode.hnr, ST_AsText(nextnode.geometry);{% endif %}
       IF linegeo is null THEN
         linegeo := NEW.linegeo;
       ELSE
@@ -260,13 +272,10 @@ BEGIN
         endnumber := newend;
 
         -- determine postcode
-        postcode := coalesce(interpol_postcode,
-                             token_normalized_postcode(prevnode.address->'postcode'),
-                             token_normalized_postcode(nextnode.address->'postcode'),
-                             postcode);
-        IF postcode is NULL THEN
-            SELECT token_normalized_postcode(placex.postcode)
-              FROM placex WHERE place_id = NEW.parent_place_id INTO postcode;
+        postcode := coalesce(prevnode.postcode, nextnode.postcode, postcode);
+        IF postcode is NULL and NEW.parent_place_id > 0 THEN
+            SELECT placex.postcode FROM placex
+              WHERE place_id = NEW.parent_place_id INTO postcode;
         END IF;
         IF postcode is NULL THEN
             postcode := get_nearest_postcode(NEW.country_code, nextnode.geometry);