SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function toStartOfInterval (children 1)
     ExpressionList (children 4)
      Function materialize (children 1)
       ExpressionList (children 1)
        Function toDateTime64 (children 1)
         ExpressionList (children 2)
          Literal \'2023-02-01 15:45:50\'
          Literal UInt64_2
      Function toIntervalHour (children 1)
       ExpressionList (children 1)
        Literal UInt64_1
      Function toDateTime64 (children 1)
       ExpressionList (children 2)
        Literal \'2023-01-02 14:44:30\'
        Literal UInt64_2
      Literal \'Europe/Amsterdam\'
