What is NewSQL?

A class of relational database management systems that seek to provide the scalability of NoSQL systems for online transaction processing (OLTP) workloads while maintaining the ACID guarantees of a traditional database system. This emerges from the NoSQL movement which advocates scalability over classic ACID guarantees. And only after hard learned lessons, people realize the merits of the old wisdom and add ACID to the NoSQL, thus resulting in NewSQL.