this is a neat project. most intriguing to me was that OLAP performance for an OLTP style query was worse.

This really highlights the place for _both_ OLTP and OLAP DBs.

OLTP: when you need to select one

OLAP: when you need to select the world

Also for metadata queries, OLTP was faster. But these were the difference between the blink of an eye and two blinks of an eye.