MemSQL is The Database of Now™ Powering Modern Applications and Analytical Systems
MemSQL is the cloud-native operational database built for speed and scale. Tested and proven as the world’s fastest database for ML, AI, & operational analytics. ANSI SQL. Fast Query Response. Hybrid Flexibility. Multi-Cloud. Fast Ingest. Highly Scalable.
MemSQL - Wikipedia
Rather than the traditional B-tree index, MemSQL uses skiplists optimized for fast, lock-free processing in memory. Due to its fully distributed nature, MemSQL is fully scalable, and it achieves high speeds for time-critical processing of large data sets. MemSQL is compatible with the MySQL wire protocol, meaning most MySQL and MariaDB drivers and products work on MemSQL.
closed source, C++