These components are installed and managed independently from WarehousePG, and aren't activated with CREATE EXTENSION.

• WarehousePG Platform Extension Framework (PXF) - Connectors for accessing data stored in external sources such as object storage and Hadoop.
• whpg-backup - Parallel backup and restore for WarehousePG clusters.
• whpg-backup-s3-plugin - Amazon S3 support for whpg-backup.