Synthesize support for Statement.getGeneratedKeys()?

Hello,

I've just come to realize that Statement.getGeneratedKeys() is not
supported in the current PG and/or JDBC driver. Does someone know if
this is a limitation of PG, or its protocol, or just not yet implemented
in the JDBC driver? I'm just wondering where, if at all (if I have
enough brain cells that is :), I could try to offer a patch or ideas..

Then question 2; I did see a discussion where it was suggested that we
could get roughly the same effect by issuing a
SELECT currval('<sequence-name>'); after the DML...
http://archives.postgresql.org/pgsql-jdbc/2005-10/msg00035.php
Would it then be feasible internal to the JDBC driver to (create an
option that would enable) always implicitly append that query to the
(String)sql arg of Statment.executeUpdate(String sql, String[]
columnNames)? I mean, just internally attempt to create the same
behavior as what this method should be doing?

Question 3 is, it seems like option two would only return the last
created key, not set of keys, in the case where multiple rows were
inserted.. is this accurate?

Unfortunately if I cant find a way to make my target-app work with PG
(without adding PG-specific modifications for getting keys), I'm
probably not going to be able to make the switch to PG unfortunately -
the code I'm working with makes really, really extensive use of
retrieved keys..

Thank you,
Ken