v.25.10Improvement

Iceberg table state is not stored

Official CH changelog text
Iceberg table state is not stored in a storage object anymore. This should make Iceberg in ClickHouse usable with concurrent queries. #86062 (Daniil Ivanik).
Iceberg table state is no longer stored in a storage object, enabling safe concurrent queries.

Why it matters

This change resolves concurrency issues by removing the Iceberg table state from storage objects, allowing multiple queries to access Iceberg tables simultaneously without conflicts. It improves stability and usability for users working with Iceberg tables under concurrent workloads.

How to use it

No special action is required from users. After upgrading to the new version, Iceberg tables in ClickHouse will support concurrent queries automatically without additional configuration.

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