SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function toString (children 1)
     ExpressionList (children 1)
      Function CAST (children 1)
       ExpressionList (children 2)
        Function toTime64 (children 1)
         ExpressionList (children 2)
          Literal \'01:02:03.123\'
          Literal UInt64_3
        Literal \'Time64(6)\'
