Version: 2.5

Catalog overview

📄️ Overview

This topic describes what a catalog is, and how to manage and query internal data and external data by using a catalog.

This topic describes what the default catalog is, and how to query the internal data of StarRocks by using the default catalog.

A Hive catalog is a kind of external catalog that enables you to query data from Apache Hive™ without ingestion.

An Iceberg catalog is a kind of external catalog that enables you to query data from Apache Iceberg without ingestion.

A Hudi catalog is a kind of external catalog that enables you to query data from Apache Hudi without ingestion.

A Delta Lake catalog is a kind of external catalog that enables you to query data from Delta Lake without ingestion.

This topic guides you through querying data from external data sources by using external catalogs.