do not use index when searching in large areas

[nominatim.git] / nominatim / db / sqlalchemy_types.py

diff --git a/nominatim/db/sqlalchemy_types.py b/nominatim/db/sqlalchemy_types.py
index 7d3789aa0d3b44854583aeb09686d8edaa1c421e..9e1f9fcecf8c1dc819e616bbbe708f40ccfd7949 100644 (file)
--- a/nominatim/db/sqlalchemy_types.py
+++ b/nominatim/db/sqlalchemy_types.py
@@ -66,7 +66,15 @@ class Geometry(types.UserDefinedType): # type: ignore[type-arg]
 
 
         def ST_DWithin(self, other: SaColumn, distance: SaColumn) -> SaColumn:
-            return sa.func.ST_DWithin(self, other, distance, type_=sa.Float)
+            return sa.func.ST_DWithin(self, other, distance, type_=sa.Boolean)
+
+
+        def ST_DWithin_no_index(self, other: SaColumn, distance: SaColumn) -> SaColumn:
+            return sa.func._ST_DWithin(self, other, distance, type_=sa.Boolean)
+
+
+        def ST_Intersects_no_index(self, other: SaColumn) -> SaColumn:
+            return sa.func._ST_Intersects(self, other, type_=sa.Boolean)
 
 
         def ST_Distance(self, other: SaColumn) -> SaColumn: