I think what people actually want is SQL layer that runs on an engine that has NoSQL performance characteristics that supports a flexible data schema. As S3 has

I think what people actually want is SQL layer that runs on an engine that has NoSQL performance characteristics that supports a flexible data schema. As S3 has shown, a non-trivial amount of data applications are very basic get/put. Yes yes, now that it’s so dominant, that’s how people are designing access patterns which is skewing things, but it’s success should tell you something about what people want.