Ticket #3485: db_do_not_format_string.diff

util.py

@@ -13 +13 @@
         self.cursor = cursor
         self.db = db
 
-    def execute(self, sql, params=()):
+    def execute(self, sql, params=None):
         start = time()
         try:
             return self.cursor.execute(sql, params)
         finally:
             stop = time()
+            # We only try param substitution if have any params
+            if params is not None:
+                sql = smart_unicode(sql) % convert_args(params)
+            else:
+                sql = smart_unicode(sql)
             self.db.queries.append({
-                'sql': smart_unicode(sql) % convert_args(params),
+                'sql': sql,
                 'time': "%.3f" % (stop - start),
             })