SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function parseDateTime64BestEffort (children 1)
     ExpressionList (children 3)
      Literal \'2020-05-14T03:37:03.253184Z\'
      Literal UInt64_3
      Function materialize (children 1)
       ExpressionList (children 1)
        Literal \'UTC\'