SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function arraySort (children 1)
     ExpressionList (children 1)
      Function arrayUnion (children 1)
       ExpressionList (children 2)
        Function range (children 1)
         ExpressionList (children 2)
          Literal UInt64_1
          Literal UInt64_256
        Function range (children 1)
         ExpressionList (children 2)
          Literal UInt64_2
          Literal UInt64_257