SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function arrayMap (children 1)
     ExpressionList (children 2)
      Function lambda (children 1)
       ExpressionList (children 2)
        Function tuple (children 1)
         ExpressionList (children 1)
          Identifier x
        Function hex (children 1)
         ExpressionList (children 1)
          Function toString (children 1)
           ExpressionList (children 1)
            Identifier x
      Function finalizeAggregation (children 1)
       ExpressionList (children 1)
        Function uniqStateForEachState (children 1)
         ExpressionList (children 1)
          Literal Array_[UInt64_1, NULL]
