[keycloak-user] Performance with a large number of resources

Using the photoz application as an example, what is the expected performance if there are a very large (say, 5M) number of albums? What about if there are multiple resources per album? You quickly get a very large number of resources. The OIDC adapters cache some number of these, so what effect will that have on the resource server? Ideally there would be a way to authorize any resource associated with an album, so if /album/vacation were authorized by /album/{id}, /album/vacation/photo/1 was also authorized, i.e., the URI that selects the resource to be authorized would always be /album/vacation.