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ClickHouse Cloud can connect directly to your open table format data catalogs, giving you access to your data lake tables without duplicating data. Through the integration, your catalog’s tables will appear as queryable databases inside ClickHouse. Setup is available both via SQL command (DataLakeCatalog) and via the ClickHouse Cloud UI on the Data Sources tab. Using the UI:
  • Simplifies setup with a form using fields consistent with your Data Catalog objects
  • Provides a single interface for active data catalog integrations
  • Tests connections and credentials when saving
NameOpen Table Format SupportedAuth MethodSupportVersion
AWS Glue CatalogIcebergIAM/Access keysCloud & Core25.10+
LakekeeperIcebergOAuth client credentialsCore25.10+
Microsoft OneLakeIcebergAzure Active Directory (AAD)Cloud & Core25.12+
NessieIcebergOAuth client credentialsCore25.10+
Polaris/Open CatalogIcebergOAuth client credentialsCore26.1+
REST catalogIcebergOAuth client credentials, Bearer tokenCloud & Core25.10+
Unity CatalogIceberg (UniForm-enabled and managed), DeltaOAuth client credentialsCloud (Iceberg only) & Core25.10+
We have more catalogs planned, including Horizon and S3 tables REST endpoint.