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Apache Spark Training: RDD: Part 2 (How to do Pivot)
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1,769 Views • Jun 10, 2015 • Click to toggle off description
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@mimmakutu

9 years ago

Hi
Pivots by default needs to have a fixed number of fields. Hence the SQL you fire needs to have the format I shown in the video. However you can construct the query dynamically by looping over list of fields

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@mimmakutu

9 years ago

Just realised the video talks in Dataframe terms. In that case you need to modify the reshape function using broadcasted variable so it generates appropriate number of output

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@SpiritOfIndiaaa

5 years ago

Really nice , thank you ...assume I have some number_of_calls 0 then I need to value from other column value "x" then how to do it ? i.e. if non-zero print as is , if zero print from column X ?

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@chinmayarankalle4389

9 years ago

Hey Ayan,
Thanks for the video now I am trying to pivot a table where values in a pivot column are  dynamic not like the country array variable I saw in this video, do you have any thoughts on this if yes please do let me know I will be happy to hear your suggestions. Thanks in advance.

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@SpiritOfIndiaaa

5 years ago

Thanks ayan , how to fix this pivot issue ... https://stackoverflow.com/questions/54577607/spark-dataframe-pivoting-is-throwing-assertionerror-assertion-failed-unsafe-sy

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