Ticket #10932: aggregations_postgresql_allow_charfields.diff

django/db/backends/__init__.py

@@ -440 +440 @@
             return value
         # No field, or the field isn't known to be a decimal or integer
         # Default to a float
-        return float(value)
+        try:                       #3566: try float ...
+            return float(value)
+        except ValueError:         #3566: ... then allow strings
+            return value
 
     def check_aggregate_support(self, aggregate_func):
         """Check that the backend supports the provided aggregate