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From ShaoFeng Shi <shaofeng...@apache.org>
Subject Re: kylin merge
Date Thu, 21 Dec 2017 10:01:12 GMT
Hi Yujunliang,

The timestamp value is not fitting as a dimension, as the granularity is
too fine (粒度太细).

Please normalize it to a higher level like Day or Hour, then use that in
the dimension. This is a common practice in designing a cube.

Here is a good article you can refer to:
http://blog.csdn.net/yu616568/article/details/50548967

Hope this helps.

2017-12-18 20:58 GMT+08:00 yujunliang <609417501@qq.com>:

> yes, the cube has the big dictionary.So,which encoding a high cardinality
> column should use.The column is the time in the format "yyyy-MM-dd HH: mm:
> ss".Shaofeng,have you some advice for me?
>
> --
> Sent from: http://apache-kylin.74782.x6.nabble.com/
>



-- 
Best regards,

Shaofeng Shi 史少锋

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