ClickHouse is an open-source column-oriented DBMS built for online analytical processing (OLAP). It offers real-time query processing and can handle massive structured datasets. ClickHouse stands out for its high performance resulting from features like column-oriented storage, data compression, vector computation, and approximated calculations. Furthermore, it supports distributed query processing, data partitioning, and replication. With its SQL-like query language and a growing development community, ClickHouse provides a scalable and reliable solution for big data storage and analysis.