RisingWave Community - How does RisingWave compare with VoltDB?

VoltDB is a commercial version of H-Store, originally an in-memory OLTP database.
VoltDB adopts a deterministic concurrency control protocol.
VoltDB (formerly VoltDB, now Volt Active Data) focuses on 5G data and sub 10-millisecond latency.
RisingWave is a cloud streaming database that aims to reduce costs for users by leveraging cloud resources.
RisingWave does not focus on 5G data or deliver sub 10-millisecond latency at the current stage.
RisingWave does not support transaction processing.