v.25.8New Feature

Iceberg Rest catalogs for writes

Official CH changelog text
Iceberg Rest catalogs for writes. #84684 (Konstantin Vedernikov).
Iceberg Rest catalogs support for write operations. This feature adds the ability to write data using Iceberg Rest catalogs in ClickHouse.

Why it matters

The feature enables users to perform write operations on Iceberg tables through REST catalogs, expanding ClickHouse's compatibility and ease of integration with Iceberg-managed data lakes. It solves the limitation of read-only access and allows seamless data management in Iceberg using ClickHouse.

How to use it

To use this feature, configure an Iceberg Rest catalog in ClickHouse by specifying the relevant REST endpoint and authentication details. Once configured, users can perform INSERT and other write operations on Iceberg tables through the catalog as part of their usual SQL workflows.

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