SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 5)
   ExpressionList (children 3)
    Identifier cntrycode
    Function count (alias numcust) (children 1)
     ExpressionList (children 1)
      Asterisk
    Function sum (alias totacctbal) (children 1)
     ExpressionList (children 1)
      Identifier c_acctbal
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (alias custsale) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 2)
           Function substring (alias cntrycode) (children 1)
            ExpressionList (children 3)
             Identifier c_phone
             Literal UInt64_1
             Literal UInt64_2
           Identifier c_acctbal
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier customer
          Function and (children 1)
           ExpressionList (children 3)
            Function in (children 1)
             ExpressionList (children 2)
              Function substring (children 1)
               ExpressionList (children 3)
                Identifier c_phone
                Literal UInt64_1
                Literal UInt64_2
              Literal Tuple_(\'13\', \'31\', \'23\', \'29\', \'30\', \'18\', \'17\')
            Function greater (children 1)
             ExpressionList (children 2)
              Identifier c_acctbal
              Subquery (children 1)
               SelectWithUnionQuery (children 1)
                ExpressionList (children 1)
                 SelectQuery (children 3)
                  ExpressionList (children 1)
                   Function avg (children 1)
                    ExpressionList (children 1)
                     Identifier c_acctbal
                  TablesInSelectQuery (children 1)
                   TablesInSelectQueryElement (children 1)
                    TableExpression (children 1)
                     TableIdentifier customer
                  Function and (children 1)
                   ExpressionList (children 2)
                    Function greater (children 1)
                     ExpressionList (children 2)
                      Identifier c_acctbal
                      Literal Float64_0
                    Function in (children 1)
                     ExpressionList (children 2)
                      Function substring (children 1)
                       ExpressionList (children 3)
                        Identifier c_phone
                        Literal UInt64_1
                        Literal UInt64_2
                      Literal Tuple_(\'13\', \'31\', \'23\', \'29\', \'30\', \'18\', \'17\')
            Function not (children 1)
             ExpressionList (children 1)
              Function exists (children 1)
               ExpressionList (children 1)
                Subquery (children 1)
                 SelectWithUnionQuery (children 1)
                  ExpressionList (children 1)
                   SelectQuery (children 3)
                    ExpressionList (children 1)
                     Asterisk
                    TablesInSelectQuery (children 1)
                     TablesInSelectQueryElement (children 1)
                      TableExpression (children 1)
                       TableIdentifier orders
                    Function equals (children 1)
                     ExpressionList (children 2)
                      Identifier o_custkey
                      Identifier c_custkey
   ExpressionList (children 1)
    Identifier cntrycode
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier cntrycode
   Set