v.22.10Improvement

Projections Added for Zero-Copy Replication in ClickHouse

Official CH changelog text
Now projections can be used with zero copy replication (zero-copy replication is a non-production feature). #41147 (alesapin).
Projections in ClickHouse can now be used with zero copy replication, enabling more efficient replication of projected data.

Why it matters

This feature allows users to leverage zero copy replication for tables with projections, solving the limitation where projections were previously incompatible. It provides value by improving replication efficiency and reducing storage overhead during replication of projected data.

How to use it

To use projections with zero copy replication, enable zero copy replication on the desired tables that have projections defined. Note that zero copy replication remains a non-production feature and should be used accordingly.

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