hierarchical query problem

I have a hierarchical query that returns the following output:

id                             date


------------------------------ --------

18331                          25-01-05


---13204                       28-10-04

------13193                    07-10-04

---13205                       28-10-04

------13194                    07-10-04

---13206                       28-10-04

18332                          25-01-05


---13204                       28-10-04

------13193                    07-10-04

---13205                       28-10-04

------13194                    07-10-04

---13206                       28-10-04

19521                          15-02-05


---14798                       25-11-04

---15228                       02-12-04

------15223                    08-11-04

Please notice that ID is formatted in order to show its hierarchical level.

I wish to wrote another query that uses this query as an inline view and returns an output like this:

root days
----- ----

18331 xxx
18332 yyy
19521 zzz

Where 18331, 18332 and 19521 are the root nodes and "days" are the days   between the date of the root node and the average date of the leaf nodes.

Any suggestion?

Thank you. Kind regards,

-- 
Cris Carampa (cris119_at_operamail.com)

- We're gonna be like three little Fonzies here. And what's Fonzie like?
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