For example, you can use ClickHouse queries to dynamically change the shape of pages based on user behavior across multiple sites (aka retargeting). You can can

For example, you can use ClickHouse queries to dynamically change the shape of pages based on user behavior across multiple sites (aka retargeting). You can can also use ClickHouse to manage CDN downloads in real time. Here are a couple of talks that illustrate both use cases. We still call this OLAP but it's quite different from traditional uses. In particular the core data come event streams. https://altinity.com/presentations/2020/06/16/big-data-in-real-time-how-clickhouse-powers-admirals-visitor-relationships-for-publishers https://altinity.com/presentations/2020/06/16/big-data-in-re... https://altinity.com/webinarspage/2020/6/23/big-data-and-beautiful-video-how-clickhouse-enables-mux-to-deliver-content-at-scale https://altinity.com/webinarspage/2020/6/23/big-data-and-bea...