- * -- {tablename}_trigger_before_delete_{column_name}(NEW.column)
- * -- {tablename}_trigger_before_update_{column_name}(OLD.column, NEW.column}
- * -- {tablename}_trigger_before_insert_{column_name}(OLD.column}
+ * -- {tablename}_trigger_{optional_string}_before_delete_{column_name}(NEW.column)
+ * -- {tablename}_trigger_{optional_string}_before_update_{column_name}(OLD.column, NEW.column}
+ * -- {tablename}_trigger_{optional_string}_before_insert_{column_name}(OLD.column}