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From ShaoFeng Shi <shaofeng...@apache.org>
Subject Re: Understanding Query Cache In Apache Kylin
Date Tue, 13 Nov 2018 14:20:34 GMT
Kylin's query cache is simple, just checking the SQL's signature; so, in
your case, the query of (D1, D2) won't use the cache of (D1, D2, D3).


Best regards,

Shaofeng Shi 史少锋
Apache Kylin PMC
Work email: shaofeng.shi@kyligence.io
Kyligence Inc: https://kyligence.io/

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Na Zhai <na.zhai@kyligence.io> 于2018年11月13日周二 下午9:26写道:

> Hi, Shrikant Bang
>
> I think it will not go through query cached result(of D1,D2,D3) .
>
>
>
> 发送自 Windows 10 版邮件 <https://go.microsoft.com/fwlink/?LinkId=550986>应用
>
>
>
> *发件人: *Shrikant Bang <b.shrikant28@gmail.com>
> *发送时间: *2018年11月13日 20:50
> *收件人: *dev@kylin.apache.org; user@kylin.apache.org
> *主题: *Understanding Query Cache In Apache Kylin
>
>
>
> Hi Team,
>
>
>
> Let say I have a cube on dimensions D1, D2, D3 and Metrics M1, M2, M3.
>
>
>
> When I  hit a multiple queries on grouping dimension D1, D2, D3, it will
> get cached and cuboid will be hot.
>
>
>
> Once cuboid (D1,D2,D3) gets cached and I will hit a query on grouping
> dimension D1, D2 (with similar metrics).
>
> Will query go through query cached result (of D1,D2,D3) or runs a query on
> HBase Table?
>
>
>
> P.S. I am using Apache Kylin v2.5.1-hbase1.x
>
>
>
> Thank You,
>
> Shrikant Bang
>
>
>

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