StarRocks/starrocks
The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance for multi-dimensional analytics, real-time analytics, and ad-hoc queries. A Linux Foundation project.
License & maintenance
Apache-2.0 is a permissive license: free to use commercially with attribution.
Last code push today.