Most industrial strength storage engines use multiversion concurrency control, but they still require a fair share of locking - row level locks that protect the

Most industrial strength storage engines use multiversion concurrency control, but they still require a fair share of locking - row level locks that protect the data while a second copy is made, for example. No storage engine is entirely "lock-free", but we have only very few extremely granular locks. This is completely different from what was done before (as far as we know), and from a practical perspective is as good as lock-free. I don't think I can explain the technology in a comment, but we'll definitely be releasing more information in the coming weeks. We had to get this release out for now. Stay tuned!