Re: [Performance] Spark DataFrame is slow with wide data. Polynomial complexity on the number of columns is observed. Why?

[makatun]

Here are the images missing in the previous mail. My apologies. 
<http://apache-spark-developers-list.1001551.n3.nabble.com/file/t3091/timeline.png>
 
<http://apache-spark-developers-list.1001551.n3.nabble.com/file/t3091/readFormat_visualVM_Sampler.jpg>
 



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