By your logic the entire in-memory CPU database space is wasted energy. I'm sure every analyst who wants to do some filters, group bys, joins and subqueries ove

By your logic the entire in-memory CPU database space is wasted energy. I'm sure every analyst who wants to do some filters, group bys, joins and subqueries over a big dataset wants to write custom code (in C/C++ to be fast!), hoping their code will be as fast as a database optimized for such purposes, and then rewrite it all as soon as they need to tweak their query.