SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function subtractInterval (children 1)
     ExpressionList (children 2)
      Function tuple (children 1)
       ExpressionList (children 1)
        Function toIntervalSecond (children 1)
         ExpressionList (children 1)
          Literal UInt64_1
      Function toIntervalSecond (children 1)
       ExpressionList (children 1)
        Literal UInt64_1