The document summarizes a ClickHouse meetup that took place on October 2, 2018 in Paris. It includes an agenda with presentations on ClickHouse and case studies from ContentSquare, Storetail, and Pragma Analytics. The document also provides an introduction to ClickHouse including that it is an open source, real-time, column-oriented database management system developed by Yandex in 2012-2015. It highlights ClickHouse's speed, flexibility, and cost advantages compared to other analytical database systems.