partition by range on "timestamp with time zone" column

Hi.
On Oracle 10g i'm trying to partition the table by range of "timestamp with time zone" column:

CREATE TABLE ACCT
(
...
ACCTSTOPTIME TIMESTAMP(0) WITH TIME ZONE,
...
)
PARTITION BY RANGE (ACCTSTOPTIME) (
PARTITION ACCT_042005 VALUES LESS THAN (TO_DATE('01052005','DDMMYYYY')),
...
);

but got an error:
PARTITION BY RANGE (ACCTSTOPTIME) (
*
ERROR at line 52:
ORA-03001: unimplemented feature

is it completely impossible to partition the table by this type of date?
Is there any workaround on this?

thanks,
--
Alexander

is your database an upgrade from an eariler version?

No. It was just installed for tests from 10.2.0.1.0 distribution (Solaris 9)

Do you really need time zone in the partition key?

Tamil

i'm not sure about this.
but the column itself need this format because the values stored there are with timezone.

Might be time for a synthetic key. Ought to work as long as you assign the key to the time zone values in large batches, but it's not something I've spent a lot of time thinking avbout personally.