When you execute the UPDATE command of ALTER EXTENSION to upgrade an extension after installing an external PostgreSQL extension and performing CREATE EXTENSION, some extensions can be updated only by SUPERUSER. The FEPAction custom resource is used to update such extensions.

By specifying "alter_extension" in the spec.fepAction.type of the FEPAction custom resource, you can execute ALTER EXTENSION on the specified FEPCluster container.

Please refer to the Reference for how to use.