Complex Object Retrieval doesn't work

I'm using Oracle object extensions. I use nested tables and table of refs.
I've tried to read my data with OCI and OCCI but tracing accesses to db I find a lot of roundtrips: one for each ref to be read. Much more with OCCI which is several times slower. I've tried to set Complex Object Retrieval parameters with but I got no results: roundtrips are always the same and its time is 55-60% of my app total time.
I used following configurations:

server: tru64 5.1b + ora 9.2.0.4 - client: tru64 5.1b + ora 10.1.0.2
server: tru64 5.1b + ora 9.2.0.4 - client: tru64 5.1b + ora 9.2.0.4
server: tru64 5.1b + ora 9.2.0.4 - client: winxp + ora 10.1.0.2
server: tru64 5.1b + ora 9.2.0.4 - client: winxp + ora 10.1.0.3
server: winxp + ora 10.1.0.3 - client: tru64 5.1b + ora 10.1.0.3

Have someone ever had successful results using COR ?

TIA Received on Sat Nov 13 2004 - 18:56:24 CST