Catalog guides

Reference guides for connecting ClickHouse to data lake catalogs including AWS Glue, Unity, REST, Lakekeeper, Nessie, and OneLake.

ClickHouse integrates with a range of data lake catalogs through the DataLakeCatalog database engine. The following guides walk through connecting ClickHouse to each supported catalog, including configuration, authentication, and querying examples.

Catalog	Description
AWS Glue	Query Iceberg tables registered in the AWS Glue Data Catalog from data stored in S3.
Databricks Unity Catalog	Connect to Databricks Unity Catalog for Delta Lake and Iceberg tables.
Iceberg REST Catalog	Use any catalog implementing the Iceberg REST specification, such as Tabular.
Lakekeeper	Connect to the Lakekeeper Catalog for Iceberg tables.
Project Nessie	Query Iceberg tables using the Nessie Catalog with Git-like data version control.
Microsoft OneLake	Query Iceberg tables in Microsoft Fabric OneLake.
Polaris catalog	Connect to the Polaris catalog for Iceberg tables.
BigLake Metastore	Query Iceberg tables registered in BigLake Metastore.