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 finalizeAggregation (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]
