While we're all here talking about databases I've got a question for the DBA/well versed software engineers.

What database or database design strategies to be used for an analytics dashboard that can be queries real-time similar to Google Analytics?

The first real scaling issue I've come across (as a junior dev working on a side project) is a table with 38 million rows and rapidly growing.

Short of just adding indexes and more RAM to the problem, is there another way to design such a table to be effectively queried for Counts and Group Bys over a date range?

Iimagine things can't really be pre-comuted too easily due to the different filters?