> ## 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.

# Does ClickHouse support real-time updates?

> ClickHouse supports lightweight real-time updates

ClickHouse supports the UPDATE statement and is capable running real-time updates as fast as it runs INSERTs.

This is possible thanks to the [patch parts data structure](https://clickhouse.com/blog/updates-in-clickhouse-2-sql-style-updates#stage-3-patch-parts--updates-the-clickhouse-way), which allows quickly applying changes without a significant impact on the SELECT performance.

Moreover, due to MVCC (multi-version concurrency control) and snapshot isolation, updates provide ACID properties.

<Info>
  Lightweight updates were first introduced in ClickHouse version 25.7.
</Info>