allow partial support for filtering against window functions (#239)

Author: maikhanhbui

mssql/compiler.py

@@ -230,6 +230,9 @@ def as_sql(self, with_limits=True, with_col_aliases=False):
                 if not getattr(features, 'supports_select_{}'.format(combinator)):
                     raise NotSupportedError('{} is not supported on this database backend.'.format(combinator))
                 result, params = self.get_combinator_sql(combinator, self.query.combinator_all)
+            elif django.VERSION >= (4, 2) and self.qualify:
+                result, params = self.get_qualify_sql()
+                order_by = None
             else:
                 distinct_fields, distinct_params = self.get_distinct()
                 # This must come after 'select', 'ordering', and 'distinct' -- see