For example: https://latest.datasette.io/fixtures/sortable?_sort_desc=sortable&_col=sortable_with_nulls That's `?_sort_desc=sortable&_col=sortable_with_nulls` <img width="494" alt="image" src="https://user-images.githubusercontent.com/9599/181139719-06e3bf66-3fde-4f9a-bfd1-62b326121601.png">