Revert "switch to threading"

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

diff --git a/sql/partition-functions.src.sql b/sql/partition-functions.src.sql
index 3959661e7a4e567a5c983ed25723db5903b46399..41758c83d22481234b2e2253f30169033e03a36d 100644 (file)
--- a/sql/partition-functions.src.sql
+++ b/sql/partition-functions.src.sql
@@ -6,11 +6,9 @@ BEGIN
 -- start
   IF in_partition = -partition- THEN
     FOR r IN 
-      SELECT place_id, keywords, rank_address, rank_search, min(ST_Distance(feature, centroid)) as distance, isguess, postcode, centroid FROM (
-        SELECT * FROM location_area_large_-partition- WHERE ST_Intersects(geometry, feature) and rank_search < maxrank
-        UNION ALL
-        SELECT * FROM location_area_country WHERE ST_Intersects(geometry, feature) and rank_search < maxrank
-      ) as location_area
+      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
       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) *
@@ -64,9 +62,9 @@ BEGIN
     RETURN TRUE;
   END IF;
 
-  IF in_rank_search <= 4 THEN
-    INSERT INTO location_area_country (partition, place_id, country_code, keywords, rank_search, rank_address, isguess, centroid, geometry)
-      values (in_partition, in_place_id, in_country_code, in_keywords, in_rank_search, in_rank_address, in_estimate, in_centroid, in_geometry);
+  IF in_rank_search <= 4 and not in_estimate THEN
+    INSERT INTO location_area_country (place_id, country_code, geometry)
+      values (in_place_id, in_country_code, in_geometry);
     RETURN TRUE;
   END IF;
 
@@ -84,54 +82,51 @@ END
 $$
 LANGUAGE plpgsql;
 
-create or replace function getNearestNamedRoadFeature(in_partition INTEGER, point GEOMETRY, isin_token INTEGER[]) 
-  RETURNS setof nearfeature AS $$
+CREATE OR REPLACE FUNCTION getNearestNamedRoadPlaceId(in_partition INTEGER,
+                                                      point GEOMETRY,
+                                                      isin_token INTEGER[])
+  RETURNS BIGINT
+  AS $$
 DECLARE
-  r nearfeature%rowtype;
+  parent BIGINT;
 BEGIN
 
 -- start
   IF in_partition = -partition- THEN
-    FOR r IN 
-      SELECT place_id, name_vector, address_rank, search_rank,
-          ST_Distance(centroid, point) as distance, null as isguess
-          FROM search_name_-partition-
-          WHERE name_vector && isin_token
-          AND ST_DWithin(centroid, point, 0.015)
-          AND search_rank between 26 and 27
-      ORDER BY distance ASC limit 1
-    LOOP
-      RETURN NEXT r;
-    END LOOP;
-    RETURN;
+    SELECT place_id FROM search_name_-partition-
+      INTO parent
+      WHERE name_vector && isin_token
+            AND centroid && ST_Expand(point, 0.015)
+            AND search_rank between 26 and 27
+      ORDER BY ST_Distance(centroid, point) ASC limit 1;
+    RETURN parent;
   END IF;
 -- end
 
   RAISE EXCEPTION 'Unknown partition %', in_partition;
 END
 $$
-LANGUAGE plpgsql;
+LANGUAGE plpgsql STABLE;
 
-create or replace function getNearestNamedPlaceFeature(in_partition INTEGER, point GEOMETRY, isin_token INTEGER[]) 
-  RETURNS setof nearfeature AS $$
+CREATE OR REPLACE FUNCTION getNearestNamedPlacePlaceId(in_partition INTEGER,
+                                                       point GEOMETRY,
+                                                       isin_token INTEGER[])
+  RETURNS BIGINT
+  AS $$
 DECLARE
-  r nearfeature%rowtype;
+  parent BIGINT;
 BEGIN
 
 -- start
   IF in_partition = -partition- THEN
-    FOR r IN 
-      SELECT place_id, name_vector, address_rank, search_rank,
-          ST_Distance(centroid, point) as distance, null as isguess
-          FROM search_name_-partition-
-          WHERE name_vector && isin_token
-          AND ST_DWithin(centroid, point, 0.04)
-          AND search_rank between 16 and 22
-      ORDER BY distance ASC limit 1
-    LOOP
-      RETURN NEXT r;
-    END LOOP;
-    RETURN;
+    SELECT place_id
+      INTO parent
+      FROM search_name_-partition-
+      WHERE name_vector && isin_token
+            AND centroid && ST_Expand(point, 0.04)
+            AND search_rank between 16 and 22
+      ORDER BY ST_Distance(centroid, point) ASC limit 1;
+    RETURN parent;
   END IF;
 -- end