use line interpolation to create centroid for lines

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

diff --git a/lib-sql/functions/partition-functions.sql b/lib-sql/functions/partition-functions.sql
index 53aba22c90a3e15290c76ad125c0c7f11982ae52..20ec3da6bb6853ec38c334ec483f784320e7dc0b 100644 (file)
--- a/lib-sql/functions/partition-functions.sql
+++ b/lib-sql/functions/partition-functions.sql
@@ -1,3 +1,10 @@
+-- SPDX-License-Identifier: GPL-2.0-only
+--
+-- This file is part of Nominatim. (https://nominatim.org)
+--
+-- Copyright (C) 2022 by the Nominatim developer community.
+-- For a full list of authors see the git log.
+
 DROP TYPE IF EXISTS nearfeaturecentr CASCADE;
 CREATE TYPE nearfeaturecentr AS (
   place_id BIGINT,
@@ -10,7 +17,7 @@ CREATE TYPE nearfeaturecentr AS (
   centroid GEOMETRY
 );
 
--- feature intersects geoemtry
+-- feature intersects geometry
 -- 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
@@ -32,7 +39,10 @@ BEGIN
 END
 $$ LANGUAGE plpgsql IMMUTABLE;
 
-create or replace function getNearFeatures(in_partition INTEGER, feature GEOMETRY, maxrank INTEGER) RETURNS setof nearfeaturecentr AS $$
+CREATE OR REPLACE function getNearFeatures(in_partition INTEGER, feature GEOMETRY,
+                                           feature_centroid GEOMETRY,
+                                           maxrank INTEGER)
+RETURNS setof nearfeaturecentr AS $$
 DECLARE
   r nearfeaturecentr%rowtype;
 BEGIN
@@ -41,7 +51,11 @@ BEGIN
   IF in_partition = {{ partition }} THEN
     FOR r IN
       SELECT place_id, keywords, rank_address, rank_search,
-             min(ST_Distance(feature, centroid)) as distance,
+             CASE WHEN isguess THEN ST_Distance(feature, centroid)
+                  ELSE min(ST_Distance(feature_centroid, geometry))
+                       -- tie breaker when distance is the same (i.e. way is on boundary)
+                       + 0.00001 * ST_Distance(feature, centroid)
+             END as distance,
              isguess, postcode, centroid
       FROM location_area_large_{{ partition }}
       WHERE geometry && feature
@@ -66,7 +80,7 @@ LANGUAGE plpgsql STABLE;
 
 CREATE OR REPLACE FUNCTION get_address_place(in_partition SMALLINT, feature GEOMETRY,
                                              from_rank SMALLINT, to_rank SMALLINT,
-                                             extent FLOAT, tokens INT[])
+                                             extent FLOAT, token_info JSONB, key TEXT)
   RETURNS nearfeaturecentr
   AS $$
 DECLARE
@@ -80,9 +94,9 @@ BEGIN
         FROM location_area_large_{{ partition }}
         WHERE geometry && ST_Expand(feature, extent)
               AND rank_address between from_rank and to_rank
-              AND tokens && keywords
+              AND token_matches_address(token_info, key, keywords)
         GROUP BY place_id, keywords, rank_address, rank_search, isguess, postcode, centroid
-        ORDER BY bool_or(ST_Intersects(geometry, feature)), distance LIMIT 1;
+        ORDER BY bool_or(ST_Intersects(geometry, feature)) DESC, distance LIMIT 1;
       RETURN r;
   END IF;
 {% endfor %}
@@ -148,18 +162,21 @@ LANGUAGE plpgsql;
 
 CREATE OR REPLACE FUNCTION getNearestNamedRoadPlaceId(in_partition INTEGER,
                                                       point GEOMETRY,
-                                                      isin_token INTEGER[])
+                                                      token_info JSONB)
   RETURNS BIGINT
   AS $$
 DECLARE
   parent BIGINT;
 BEGIN
+  IF not token_has_addr_street(token_info) THEN
+    RETURN NULL;
+  END IF;
 
 {% for partition in db.partitions %}
   IF in_partition = {{ partition }} THEN
     SELECT place_id FROM search_name_{{ partition }}
       INTO parent
-      WHERE name_vector && isin_token
+      WHERE token_matches_street(token_info, name_vector)
             AND centroid && ST_Expand(point, 0.015)
             AND address_rank between 26 and 27
       ORDER BY ST_Distance(centroid, point) ASC limit 1;
@@ -174,19 +191,22 @@ LANGUAGE plpgsql STABLE;
 
 CREATE OR REPLACE FUNCTION getNearestNamedPlacePlaceId(in_partition INTEGER,
                                                        point GEOMETRY,
-                                                       isin_token INTEGER[])
+                                                       token_info JSONB)
   RETURNS BIGINT
   AS $$
 DECLARE
   parent BIGINT;
 BEGIN
+  IF not token_has_addr_place(token_info) THEN
+    RETURN NULL;
+  END IF;
 
 {% for partition in db.partitions %}
   IF in_partition = {{ partition }} THEN
     SELECT place_id
       INTO parent
       FROM search_name_{{ partition }}
-      WHERE name_vector && isin_token
+      WHERE token_matches_place(token_info, name_vector)
             AND centroid && ST_Expand(point, 0.04)
             AND address_rank between 16 and 25
       ORDER BY ST_Distance(centroid, point) ASC limit 1;