So a SQL layer on top of a KV base? Isn&#x27;t this very similar to what FoundationDB did (and had a lot of trouble with)?<p>if so, good post by John Hugg of voltdb about it: <a href="http:&#x2F;&#x2F;voltdb.com&#x2F;blog&#x2F;foundationdbs-lesson-fast-key-value-store-not-enough" rel="nofollow">http:&#x2F;&#x2F;voltdb.com&#x2F;blog&#x2F;foundationdbs-lesson-fast-key-value-s...</a><p>How does tiDB compare to this?