SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function nothingNull (alias n) (children 1)
     ExpressionList (children 1)
      Literal NULL
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier n
