If not supported by the underlying database method, this directive is ignored without comment.
If not supported by the underlying database method, this directive is ignored without comment.
如果它不被数据库底层方法所支持，那么该指令将被无条件忽略。
If not supported by the underlying database method, this directive is ignored without comment.
如果它不被数据库底层方法所支持，那么该指令将被无条件忽略。