Generally, one of the MDC dimensions will be a time-based column so the same column can be used for both MDC and TP.
通常,有一个mdc维是基于时间的列,这样一来,同一个列既可以用于MDC,又可以用于TP。
TP is the obvious choice for the basic, common roll-out situation (that is, simply remove rows that have reached a certain age).
对于基本的、常见的转出情况(也就是说,只是删除到了一定年龄的行),TP显然是首选。
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