v.23.4Improvement

Installation Script Enhancements: Hard Link Creation

Official CH changelog text
The installation script will create a hard link instead of copying if it is possible. #48578 (Alexey Milovidov).
The ClickHouse installation script now creates a hard link instead of copying files when possible.

Why it matters

This feature optimizes the installation process by reducing disk space usage and speeding up file operations. Creating hard links avoids duplicating the same data, making installations more efficient.

How to use it

When running the ClickHouse installation script, it will automatically attempt to create hard links instead of copying files if the filesystem supports it. No additional user action is needed.

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