data stream processing engines (DSPEs)

• risingwave
• Arroyo
• flink
• Spark
• KsqlDB
• Materialize
• Quix
• Bytewax

Comparison

Engines	User Infterface
risingwave	java/python UDF
Arroyo	rust UDF

Reference List

1. https://www.risingwave.com/blog/top-7-apache-flink-alternatives-a-deep-dive/