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Hadoop >> mail # user >> Re: Is it possible to implement transpose with PigLatin/any other MR language?


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Re: Is it possible to implement transpose with PigLatin/any other MR language?
Hi,
 Its possible in Map/Reduce. Look into the code here
https://github.com/zinnia-phatak-dev/Nectar/tree/master/Nectar-regression/src/main/java/com/zinnia/nectar/regression/hadoop/primitive/mapreduce

2012/6/21 Subir S <[EMAIL PROTECTED]>

> Hi,
>
> Is it possible to implement transpose operation of rows into columns and
> vice versa...
>
>
> i.e.
>
> col1 col2 col3
> col4 col5 col6
> col7 col8 col9
> col10 col11 col12
>
> can this be converted to
>
> col1 col4 col7 col10
> col2 col5 col8 col11
> col3 col6 col9 col12
>
> Is this even possible with map reduce? If yes, which language helps to
> achieve this faster?
>
> Thanks
>

--
https://github.com/zinnia-phatak-dev/Nectar