Sink

A Sink represents the destination for results processed by RisingWave, defined using the `CREATE SINK` SQL command. It specifies an external system (like a Kafka topic, database, or Iceberg table) where RisingWave should send the output stream of changes from a table or materialized view. Sinks enable integration with downstream applications, databases, or data lakes, effectively pushing processed data out of RisingWave.