When you say “if it isn’t null”, what is the it you are referring to?
If you mean the Subscription__r.Account__c field on the ProductUser model for ALL rows, then yes. No rows should be returned for ProductUserAccount.
When you say “if it isn’t null”, what is the it you are referring to?
If you mean the Subscription__r.Account__c field on the ProductUser model for ALL rows, then yes. No rows should be returned for ProductUserAccount.