Ticket #3711: backends.diff

django/db/backends/util.py

@@ -16 +16 @@
             # formatting with '%' only works with tuples or dicts.
             if not isinstance(params, (tuple, dict)):
                 params = tuple(params)
+            if len(self.db.queries) > 25:
+                self.db.queries.pop(0)
             self.db.queries.append({
                 'sql': sql % params,
                 'time': "%.3f" % (stop - start),