A shallow survey of OLAP and HTAP query engines

from blog Scattered Thoughts, | ↗ original
Focused mostly on data layout and query execution. Query planning seems more or less the same as OLTP systems, and I'm ignoring distribution and transactions for now. Also see my full notes here. It was hard to figure out what systems are even worth studying. There is so much money in this space. Search results are polluted with barely concealed advertising (eg "How to choose between FooDB and...