# Clone massive tables instantly and experiment safely in ClickHouse

DevFeed: [Clone massive tables instantly and experiment safely in ClickHouse](<https://devfeed.tech/articles/clone-massive-tables-instantly-and-experiment-safely-in-clickhouse-5588.md>)

Original publisher: [Read original article](<https://clickhouse.com/blog/table-cloning>)

Author: Tom Schreiber

Published: 2026-02-24T08:22:17Z

Content type: tutorial

Language: en

Sources: [ClickHouse Blog](<https://devfeed.tech/sources/clickhouse-blog.md>)

Topics: [data](<https://devfeed.tech/topics/data.md>)

Tags: [clickhouse](<https://devfeed.tech/tags/clickhouse.md>), [cloud](<https://devfeed.tech/tags/cloud.md>), [data](<https://devfeed.tech/tags/data.md>), [experimentation](<https://devfeed.tech/tags/experimentation.md>), [production](<https://devfeed.tech/tags/production.md>), [testing](<https://devfeed.tech/tags/testing.md>)

## AI overview

Explains how ClickHouse table cloning creates instant copy-on-write clones for safely testing destructive changes without copying production data.

## Source excerpt

Learn how to clone massive tables in ClickHouse instantly, without copying a single byte. Discover how immutable data parts and part-level copy-on-write make safe experimentation and migrations effortless.