There is no actual new functionality here, but formerly you had to say ALTER TABLE to do these things, which was confusing.

这样也没带来什么新功能，不过以前都是用ALTER TABLE 来做这件事，很让人迷惑。

youdao

"My Lord," said a dark woman halfway down the table, her voice constricted with emotion, "it is an honor to have you here, in our family's house." There can be no higher pleasure.

“主人，”桌子中间的一个皮肤黝黑女人激动地说，“您能在这儿，在我们家族的房子里，是一种莫大的荣耀，再也没有比这更令人高兴的事情了。”

youdao