SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function toIPv6 (children 1)
     ExpressionList (children 1)
      Function toUInt128 (children 1)
       ExpressionList (children 1)
        Function toIPv6 (children 1)
         ExpressionList (children 1)
          Literal \'1234:5678:9abc:def0:fedc:9abc:4321:8765\'
