Clarity on Dimensions and aggregate group

[mvneethu <ne...@tigeranalytics.com>]

Hi,
I am trying to use Apache Kylin for my work and need some clarity. Say, I
have 10 dimensions but I have 2 AGG with 6 dimensions. From what I
understand, the cuboids are created from the AGG. How does the row key will
be created to be stored to HBASE? what about the rest 4 dimesions in the
data model?
Please clarify.

--
Sent from: http://apache-kylin.74782.x6.nabble.com/

Re: Clarity on Dimensions and aggregate group

[ShaoFeng Shi <sh...@apache.org>]

Hello Neethu,

Welcome to Kylin community. This is a good question.

The top level of the cuboids is the "base cuboid", which is the parent of
all AGGs.

The "base cuboid" will have all dimensions; In this case, it has the 10
dimensions in it. The two AGG will be calculated from the base cuboid.

So, if the rest 4 dimensions are not included in any AGG, at least they
will appear in the base cuboid.

Hope this clarifies your question.



2018-04-06 17:19 GMT+08:00 mvneethu <ne...@tigeranalytics.com>:

> Hi,
> I am trying to use Apache Kylin for my work and need some clarity. Say, I
> have 10 dimensions but I have 2 AGG with 6 dimensions. From what I
> understand, the cuboids are created from the AGG. How does the row key will
> be created to be stored to HBASE? what about the rest 4 dimesions in the
> data model?
> Please clarify.
>
> --
> Sent from: http://apache-kylin.74782.x6.nabble.com/
>



-- 
Best regards,

Shaofeng Shi 史少锋