<ul><li>Sometimes in ClickHouse, you need to move or copy data between tables — especially when you're changing the table engine.</li><li>The 'MOVE PARTITION TO TABLE' command in ClickHouse comes with strict requirements, making it unsuitable for moving data between different engine types.</li><li>The alternative approach is to use 'ATTACH PARTITION FROM' command, which allows copying data without deleting it from the source and supports different engine types.</li><li>After successfully attaching and validating the data, the old partition can be dropped using the 'DROP PARTITION' command.</li></ul>

🛠️ Copying and Moving Data Between Tables in ClickHouse (with Different Engines)

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