Optional ReadonlyOrderWhat happens to the query's ORDER BY. Auto (the default): it moves to the outer query,
or, when the query has its own row cap, stays inside and is copied outside. Keep: it stays
inside only. Drop: it is removed. Moved and copied items name output columns, so their
qualifiers are dropped (a.Name becomes Name).
Optional ReadonlySelectThe outer select list; * by default.
Options for WrapAsDerivedTable.