Rust‑Powered StreamFusion Boosts Flink SQL with Native Columnar Execution
StreamFusion adds a Rust‑based, columnar accelerator to Apache Flink SQL via JNI, swapping supported streaming operators for native Arrow/DataFusion execution while Flink retains planning and fallback. It delivers byte‑identical results for a wide range of windowed aggregates, joins, and changelog operations, but any unsupported operator forces the whole query back to Flink.