Ticket #3825: query_ordering.patch

query.py

@@ -530 +530 @@
                     col_name = f
                     order = "ASC"
                 if "." in col_name:
-                    table_prefix, col_name = col_name.split('.', 1)
+                    table_prefix, col_name = col_name.rsplit('.', 1)
+                    if col_name.startswith('-'):
+                        col_name = col_name[1:]
                     table_prefix = backend.quote_name(table_prefix) + '.'
                 else:
                     # Use the database table as a column prefix if it wasn't given,