Cool. Would be interesting to see if that comes up as a common request; we have found the ability to do real-time and historic to be interesting for query-ability for system data.
Have you seen the other neat functionality about the Akamai query system? They allow (actually require) devs to create callbacks that get exposed as query tables to do debugging (vs letting devs on machines as first or second line of debugging).
It's an interesting paradigm though again the way they use it, like osquery, is only real-time and using the psql/OpenTSDB method allows for history as well as real-time.
osquery (and Akamai Query's) syntax is definitely simpler. We do plan to add a logical schema to map tags in OpenTSDB to logical columns to help with that.