要修改订阅的优先级，请在发布服务器上运行 sp_changemergesubscription，而不是在订阅服务器上使用 sp_changemergepullsubscription。这只是为了向后兼容。

To modify the priority of a subscription, run sp_changemergesubscription at the Publisher instead of using sp_changemergepullsubscription at subscriber. This is for backward compatibility only.