Very cool, I stand corrected. I hope one day I have another opportunity to play with KDB.<p>As for the speed advantage, you&#x27;ll have a similar speed advantage with python&#x2F;pandas&#x2F;big folder of CSV files. For all of Spark&#x27;s claims on &quot;speed&quot;, it&#x27;s really just reducing the speed penalty of Hadoop from 500x to 50x. (Here 500x and 50x refer to the performance of loading flat files from a disk.)