Overview

External catalogs let you directly query and analyze data stored in external cloud storage services like Amazon S3. This feature eliminates the need to import data into Relyt, providing greater flexibility and convenience for data processing and querying.

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• For details about how to enable Lake Formation integration to allow access to data hosted on Amazon S3, see Configure Access to S3 Data Sources Through Integration with Lake Formation.

• For details about how to use Boto3 to run async queries against external catalogs and obtain execution information, see Use Boto3 to Run Async Queries and Dump Query Results.

• For details about user-defined functions (UDFs) for external catalogs, see External Table Functions.

• For details about the syntax for creating an external schema, see CREATE EXTERNAL SCHEMA.