Merge remote-tracking branch 'upstream/master'

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

diff --git a/lib-sql/functions/place_triggers.sql b/lib-sql/functions/place_triggers.sql
index 219bb6fec3b03c6729c7e9d6b66e0d73a7e51122..08331f32c17e6b1a8662e71ddd3aba72d70113cd 100644 (file)
--- a/lib-sql/functions/place_triggers.sql
+++ b/lib-sql/functions/place_triggers.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.
+
 CREATE OR REPLACE FUNCTION place_insert()
   RETURNS TRIGGER
   AS $$
@@ -271,18 +278,26 @@ BEGIN
               and x.class = p.class;
       END IF;
 
-      -- When streets change their name, the parenting of rank30 objects may change.
-      IF existingplacex.rank_address between 26 and 27
-         and coalesce(existing.name::text, '') != coalesce(NEW.name::text, '')
+      IF coalesce(existing.name::text, '') != coalesce(NEW.name::text, '')
       THEN
-        UPDATE placex SET indexed_status = 2
-        WHERE indexed_status = 0 and address ? 'street'
-              and parent_place_id = existingplacex.place_id;
-        UPDATE placex SET indexed_status = 2
-        WHERE indexed_status = 0 and rank_search = 30 and address ? 'street'
-              and ST_DWithin(NEW.geometry, geometry, 0.002);
+        IF existingplacex.rank_address between 26 and 27 THEN
+          -- When streets change their name, this may have an effect on POI objects
+          -- with addr:street tags.
+          UPDATE placex SET indexed_status = 2
+          WHERE indexed_status = 0 and address ? 'street'
+                and parent_place_id = existingplacex.place_id;
+          UPDATE placex SET indexed_status = 2
+          WHERE indexed_status = 0 and rank_search = 30 and address ? 'street'
+                and ST_DWithin(NEW.geometry, geometry, 0.002);
+        ELSEIF existingplacex.rank_address between 16 and 25 THEN
+          -- When places change their name, this may have an effect on POI objects
+          -- with addr:place tags.
+          UPDATE placex SET indexed_status = 2
+          WHERE indexed_status = 0 and address ? 'place' and rank_search = 30
+                and parent_place_id = existingplacex.place_id;
+          -- No update of surrounding objects, potentially too expensive.
+        END IF;
       END IF;
-
     END IF;
 
     -- Abort the add (we modified the existing place instead)