> ## Documentation Index
> Fetch the complete documentation index at: https://private-7c7dfe99-fix-nav-issues.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

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

# Catalog guides

ClickHouse integrates with a range of data lake catalogs through the [`DataLakeCatalog`](/reference/engines/database-engines/datalake) database engine. The following guides walk through connecting ClickHouse to each supported catalog, including configuration, authentication, and querying examples.

| Catalog                                                                      | Description                                                                          |
| ---------------------------------------------------------------------------- | ------------------------------------------------------------------------------------ |
| [AWS Glue](/guides/use-cases/data-warehousing/glue-catalog)                  | Query Iceberg tables registered in the AWS Glue Data Catalog from data stored in S3. |
| [Databricks Unity Catalog](/guides/use-cases/data-warehousing/unity-catalog) | Connect to Databricks Unity Catalog for Delta Lake and Iceberg tables.               |
| [Iceberg REST Catalog](/guides/use-cases/data-warehousing/rest-catalog)      | Use any catalog implementing the Iceberg REST specification, such as Tabular.        |
| [Lakekeeper](/guides/use-cases/data-warehousing/lakekeeper-catalog)          | Connect to the Lakekeeper Catalog for Iceberg tables.                                |
| [Project Nessie](/guides/use-cases/data-warehousing/nessie-catalog)          | Query Iceberg tables using the Nessie Catalog with Git-like data version control.    |
| [Microsoft OneLake](/guides/use-cases/data-warehousing/onelake-catalog)      | Query Iceberg tables in Microsoft Fabric OneLake.                                    |