SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function hex (children 1)
     ExpressionList (children 1)
      Function toString (children 1)
       ExpressionList (children 1)
        Function uniqStateForEach (children 1)
         ExpressionList (children 1)
          Literal Array_[UInt64_1, NULL]
