Concepts - ClickHouse Documentation

In this section of the docs we’ll dive into the concepts around what makes ClickHouse so fast and efficient.

Page	Description
Why is ClickHouse so Fast?	Learn what makes ClickHouse so fast.
What is OLAP?	Learn what Online Analytical Processing is.
Why is ClickHouse unique?	Learn what makes ClickHouse unique.
Glossary	This page contains a glossary of terms you’ll commonly encounter throughout the docs.
FAQ	A compilation of the most frequently asked questions we get about ClickHouse.

Last modified on July 2, 2026