Merge remote-tracking branch 'upstream/master'

[nominatim.git] / sql / partition-functions.src.sql

diff --git a/sql/partition-functions.src.sql b/sql/partition-functions.src.sql
index 8f78032ed18d4e05e5bc5d4f3ea9dc50563db898..97520f99b8441d5fec6f61248afa3572a4d3cb00 100644 (file)
--- a/sql/partition-functions.src.sql
+++ b/sql/partition-functions.src.sql
@@ -10,7 +10,29 @@ CREATE TYPE nearfeaturecentr AS (
   centroid GEOMETRY
 );
 
-create or replace function getNearFeatures(in_partition INTEGER, feature GEOMETRY, maxrank INTEGER, isin_tokens INT[]) RETURNS setof nearfeaturecentr AS $$
+        -- feature intersects geoemtry
+        -- for areas and linestrings they must touch at least along a line
+CREATE OR REPLACE FUNCTION is_relevant_geometry(de9im TEXT, geom_type TEXT)
+RETURNS BOOLEAN
+AS $$
+BEGIN
+  IF substring(de9im from 1 for 2) != 'FF' THEN
+    RETURN TRUE;
+  END IF;
+
+  IF geom_type = 'ST_Point' THEN
+    RETURN substring(de9im from 4 for 1) = '0';
+  END IF;
+
+  IF geom_type in ('ST_LineString', 'ST_MultiLineString') THEN
+    RETURN substring(de9im from 4 for 1) = '1';
+  END IF;
+
+  RETURN substring(de9im from 4 for 1) = '2';
+END
+$$ LANGUAGE plpgsql IMMUTABLE;
+
+create or replace function getNearFeatures(in_partition INTEGER, feature GEOMETRY, maxrank INTEGER) RETURNS setof nearfeaturecentr AS $$
 DECLARE
   r nearfeaturecentr%rowtype;
 BEGIN
@@ -20,15 +42,10 @@ BEGIN
     FOR r IN 
       SELECT place_id, keywords, rank_address, rank_search, min(ST_Distance(feature, centroid)) as distance, isguess, postcode, centroid
       FROM location_area_large_-partition-
-      WHERE ST_Intersects(geometry, feature) and rank_search < maxrank
+      WHERE geometry && feature
+        AND is_relevant_geometry(ST_Relate(geometry, feature), ST_GeometryType(feature))
+        AND rank_address < maxrank
       GROUP BY place_id, keywords, rank_address, rank_search, isguess, postcode, centroid
-      ORDER BY rank_address, isin_tokens && keywords desc, isguess asc,
-        ST_Distance(feature, centroid) *
-          CASE 
-               WHEN rank_address = 16 AND rank_search = 15 THEN 0.2 -- capital city
-               WHEN rank_address = 16 AND rank_search = 16 THEN 0.25 -- city
-               WHEN rank_address = 16 AND rank_search = 17 THEN 0.5 -- town
-               ELSE 1 END ASC -- everything else
     LOOP
       RETURN NEXT r;
     END LOOP;
@@ -136,7 +153,7 @@ BEGIN
       FROM search_name_-partition-
       WHERE name_vector && isin_token
             AND centroid && ST_Expand(point, 0.04)
-            AND search_rank between 16 and 22
+            AND search_rank between 16 and 25
       ORDER BY ST_Distance(centroid, point) ASC limit 1;
     RETURN parent;
   END IF;