You obviously have no idea what you're talking about. You can do all of this in Kx systems as well, and it runs a lot faster than spark. I beat a databricks st

You obviously have no idea what you're talking about. You can do all of this in Kx systems as well, and it runs a lot faster than spark. I beat a databricks stack (hand tuned by one of the authors of big-DF) running on a large cluster using one jd node by factors of "a lot." And K is faster than J.