Thank you for your answer, but it did not solve my issue. I understand denodo needs parameters to query the API to create a schema. The API I use has some mutually exclusive params, so I cannot provide them all together or else the response would be empty and the schema wrong. As a workaround, can I somehow provide an empty string as a parameter? My current workaround is to only add some params, then ceate a base view, then add the rest of the params via VQL — very inconvinient.