NOTE: There's a new version of this demo! Please watch it instead: https://youtu.be/illEpCOcCVg More info: https://confluent.io/ksql | KSQL is an open source streaming SQL engine that implements continuous, interactive queries against Apache Kafka®. KSQL makes it easy to read, write and process streaming data in real-time, at scale, using SQL-like semantics. This offers an easy way to express st