How to find object dependencies in PG 8.4

Hi All,

I need to find object dependencies in postgres 8.4 database. Mainly i am
concerned about how functions are dependent(one function calling other
one) of one another. In oracle, we have options of _dpendency views(
user_dependecy,all_dependency and dba_dependecy).

Is there any equivalent available in Postgres 8.4. I have seen pg_depend
catalog, but I don't know, is this the one which i am looking for; also
how to use this catalog (join with other catalogs ??).

Can anyone kindly help me in this regard.

Venkat
=====-----=====-----=====
Notice: The information contained in this e-mail
message and/or attachments to it may contain
confidential or privileged information. If you are
not the intended recipient, any dissemination, use,
review, distribution, printing or copying of the
information contained in this e-mail message
and/or attachments to it are strictly prohibited. If
you have received this communication in error,
please notify us by reply e-mail or telephone and
immediately and permanently delete the message
and any attachments. Thank you