I spent 3 hours learning the overview of ClickHouse

ClickHouse is a high-performance, column-oriented SQL OLAP system developed initially for Yandex Metrica. It supports high ingestion rates, low-latency queries, and is adaptable for various data architectures. The system's architecture includes a query processing layer with vectorized execution, a storage layer with diverse table engines, and an integration layer for extensive external connectivity. ClickHouse uses sharding and replication to handle large-scale data efficiently.