Definition - What does NewSQL mean?
Techopedia explains NewSQL
Conceived in 2011 to address challenges faced by traditional SQL-based systems, NewSQL was designed for online transaction processing (OLTP) systems, while complying with atomicity, consistency, isolation and durability (ACID). NewSQL architecture natively supports applications that have a large number of transactions, are repetitive in their processes and utilize a small subset of data retrieving processes.
VoltDB is a NewSQL database system that provides speed up to 50 times faster than SQL and more than eight times faster than NoSQL.