v.22.2New Feature

Projections Ready for Production with Default Optimization Setting

Official CH changelog text
Projections are production ready. Set allow_experimental_projection_optimization by default and deprecate this setting. #34456 (Nikolai Kochetov).
Projections are now production ready in ClickHouse; the allow_experimental_projection_optimization setting is enabled by default and subsequently deprecated.

Why it matters

This feature promotes the stability and usability of projections by removing their experimental status, allowing users to leverage projection optimizations confidently in production environments without manual enabling.

How to use it

The optimization for projections is enabled by default, so users do not need to set allow_experimental_projection_optimization manually anymore. Existing configurations using this setting should remove it as it is deprecated.

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