SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function round (children 1)
     ExpressionList (children 2)
      Function h3HexAreaKm2 (children 1)
       ExpressionList (children 1)
        Function arrayJoin (children 1)
         ExpressionList (children 1)
          Literal Array_[UInt64_1, UInt64_2]
      Literal UInt64_2
