Yeah and good luck when the CEO starts asking for reports and metrics (or anything else that databases have been optimized over the last 50 years to do very well).
We do use Preset for metrics and dashboards, and obviously Preset isn't going to talk to our in-memory database.
So we do have a separate MySQL database where we just push analytics data. (e.g. each time an event of interest happens.) We never read from this database, and the data is a schemaless JSON.
Preset then queries from this database for our metrics purposes.
Surely this is a parody article of some sort?