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From Mich Talebzadeh <mich.talebza...@gmail.com>
Subject Re: Data frame Performance
Date Tue, 16 Aug 2016 11:48:04 GMT
Hi Selvan,

is table called sel,?

And are these assumptions correct?

site -> ColA
requests -> ColB

I don't think you are using ColC here?

HTH



Dr Mich Talebzadeh



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On 16 August 2016 at 12:06, Selvam Raman <selmna@gmail.com> wrote:

> Hi All,
>
> Please suggest me the best approach to achieve result. [ Please comment if
> the existing logic is fine or not]
>
> Input Record :
>
> ColA ColB ColC
> 1 2 56
> 1 2 46
> 1 3 45
> 1 5 34
> 1 5 90
> 2 1 89
> 2 5 45
> ​
> Expected Result
>
> ResA     ResB
> 1            2:2|3:3|5:5
> 2           1:1|5:5
>
> I followd the below Spark steps
>
> (Spark version - 1.5.0)
>
> def valsplit(elem :scala.collection.mutable.WrappedArray[String]) :
> String =
> {
>
>     elem.map(e => e+":"+e).mkString("|")
> }
>
> sqlContext.udf.register("valudf",valsplit(_:scala.collection.mutable.
> WrappedArray[String]))
>
>
> val x =sqlContext.sql("select site,valudf(collect_set(requests)) as test
> from sel group by site").first
>
>
>
> --
> Selvam Raman
> "லஞ்சம் தவிர்த்து நெஞ்சம் நிமிர்த்து"
>

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