Nice, thanks for the reference! BTW, the comparison was only to give an idea about isolation levels, it wasn't meant to be a feature-to-feature comparison. Pe

Nice, thanks for the reference! BTW, the comparison was only to give an idea about isolation levels, it wasn't meant to be a feature-to-feature comparison. Perhaps I didn't make it prominent enough, but at some point I say that many SQL databases have key-value stores at their core, and implement a SQL layer on top (e.g. https://www.cockroachlabs.com/docs/v22.1/architecture/overview https://www.cockroachlabs.com/docs/v22.1/architecture/overvi...). Basically SQL can be a feature added later to a solid KV store as a base.