The remark wasn't that there weren't solutions, but that it is still a problem that needs a solution. Storing all data within a single database is a much simple

The remark wasn't that there weren't solutions, but that it is still a problem that needs a solution. Storing all data within a single database is a much simpler way to get started if you want to run analytic queries. You spin up a read slave that is tuned for expensive queries, rather than OLAP ones.