Feldera is an incremental computation platform for SQL pipelines. It updates materialized views in response to inserts, updates, and deletes, supporting use cases such as analytics, ETL, and feature engineering across live and historical data.
Its DBSP engine, pipeline manager, connectors, and storage components form a substantial Rust workspace. The wider product also includes a SQL compiler and web interface implemented with other languages. The open-source edition is MIT-licensed; Enterprise-only code has separate commercial terms.