--- title: General questions about ClickHouse toc_hidden_folder: true toc_priority: 1 toc_title: General --- # General Questions About ClickHouse {#general-questions} Questions: - [What is ClickHouse?](../../index.md#what-is-clickhouse) - [Why ClickHouse is so fast?](../../faq/general/why-clickhouse-is-so-fast.md) - [Who is using ClickHouse?](../../faq/general/who-is-using-clickhouse.md) - [What does “ClickHouse” mean?](../../faq/general/dbms-naming.md) - [What does “Не тормозит” mean?](../../faq/general/ne-tormozit.md) - [What is OLAP?](../../faq/general/olap.md) - [What is a columnar database?](../../faq/general/columnar-database.md) - [Why not use something like MapReduce?](../../faq/general/mapreduce.md) !!! info "Don’t see what you were looking for?" Check out [other F.A.Q. categories](../../faq/index.md) or browse around main documentation articles found in the left sidebar. {## [Original article](https://clickhouse.com/docs/en/faq/general/) ##}