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 tuple (children 1)
       ExpressionList (children 1)
        Literal UInt64_1
