> ## Documentation Index
> Fetch the complete documentation index at: https://private-7c7dfe99-fix-nav-issues.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# ClickHouse 常见问题

> 列出 ClickHouse 常见问题的索引页

* [什么是 ClickHouse？](/zh/get-started/about/intro)
* [为什么 ClickHouse 如此之快？](/zh/get-started/about/why-clickhouse-is-so-fast)
* [谁在使用 ClickHouse？](/zh/resources/support-center/knowledge-base/general-faqs/who-is-using-clickhouse)
* [“ClickHouse” 是什么意思？](/zh/resources/support-center/knowledge-base/general-faqs/dbms-naming)
* [“Не тормозит” 是什么意思？](/zh/resources/support-center/knowledge-base/general-faqs/ne-tormozit)
* [什么是 OLAP？](/zh/resources/support-center/knowledge-base/general-faqs/olap)
* [什么是列式数据库？](/zh/resources/support-center/knowledge-base/general-faqs/columnar-database)
* [如何选择主键？](/zh/guides/clickhouse/data-modelling/sparse-primary-indexes)
* [为什么不使用 MapReduce 之类的方案？](/zh/resources/support-center/knowledge-base/general-faqs/mapreduce)
* [如何为 ClickHouse 贡献代码？](/zh/resources/support-center/knowledge-base/general-faqs/how-do-i-contribute-code-to-clickhouse)

<Info>
  **没找到你要找的内容？**

  请查看我们的[知识库](/zh/resources/support-center/home)，也可以浏览本文档中的众多实用文章。
</Info>