Merge remote-tracking branch 'upstream/master'

[nominatim.git] / nominatim / api / search / db_searches.py

diff --git a/nominatim/api/search/db_searches.py b/nominatim/api/search/db_searches.py
index 107451b6cc50c57352d192e039623c41da550895..76ff368f85b177ae8ad9dee579ec0bbc6de4e160 100644 (file)
--- a/nominatim/api/search/db_searches.py
+++ b/nominatim/api/search/db_searches.py
@@ -403,6 +403,12 @@ class CountrySearch(AbstractSearch):
                                       details: SearchDetails) -> nres.SearchResults:
         """ Look up the country in the fallback country tables.
         """
+        # Avoid the fallback search when this is a more search. Country results
+        # usually are in the first batch of results and it is not possible
+        # to exclude these fallbacks.
+        if details.excluded:
+            return nres.SearchResults()
+
         t = conn.t.country_name
         tgrid = conn.t.country_grid
 
@@ -562,6 +568,8 @@ class PlaceSearch(AbstractSearch):
             sql = sql.where(tsearch.c.country_code.in_(self.countries.values))
 
         if self.postcodes:
+            # if a postcode is given, don't search for state or country level objects
+            sql = sql.where(tsearch.c.address_rank > 9)
             tpc = conn.t.postcode
             if self.expected_count > 1000:
                 # Many results expected. Restrict by postcode.
@@ -639,8 +647,8 @@ class PlaceSearch(AbstractSearch):
                                                                   numerals, details)
                                     ), else_=None)
             else:
-                interpol_sql = sa.literal(None)
-                tiger_sql = sa.literal(None)
+                interpol_sql = sa.literal_column('NULL')
+                tiger_sql = sa.literal_column('NULL')
 
             unsort = sa.select(inner, place_sql.scalar_subquery().label('placex_hnr'),
                                interpol_sql.label('interpol_hnr'),