SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function in (children 1)
     ExpressionList (children 2)
      Function CAST (children 1)
       ExpressionList (children 2)
        Function tuple (children 1)
         ExpressionList
        Literal \'Tuple()\'
      Function array (children 1)
       ExpressionList (children 1)
        Function tuple (children 1)
         ExpressionList
