X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/41bf162306cb0d4fbf76e793e37b395dd57d5761..317cc5c5443ef0a46b70be589fba2737d0685948:/nominatim/api/search/db_searches.py

diff --git a/nominatim/api/search/db_searches.py b/nominatim/api/search/db_searches.py
index 107451b6..db35f726 100644
--- a/nominatim/api/search/db_searches.py
+++ b/nominatim/api/search/db_searches.py
@@ -639,8 +639,8 @@ 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'),