There not really defined though, just a statement that they should be there.
不过还是没有定义是怎样的策略，只是说应该要有策略。
A partitioning key is defined on a table with the CREATE table statement.
分区键是在一个表上用CREATEtable语句定义的。
The answer is the just what a well-defined functionality statement provides: focus.
答案就是一个定义良好的功能陈述所提供的内容：焦点。
The answer is the just what a well-defined functionality statement provides: focus.
答案就是一个定义良好的功能陈述所提供的内容：焦点。
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