getTablePrivileges empty if table owned by group role

Hi,

I came across a situation which revealed that getTablePrivileges is not
returning any grants if a table is owned by a group role, i.e. a role wihout
login attribute. The connection is opened with superuser priviliges.

This code runs with the latest 8.4 driver (702) agains a 8.4.8 database.

    public static void listprivs() throws SQLException{
        ResultSet rs = con.getMetaData().getTablePrivileges(null, "public", "test");
        int i = 0;
        while (rs.next())
        {
           System.out.print("grantee: " + rs.getString("GRANTEE"));
           System.out.println(", privilege: " + rs.getString("PRIVILEGE"));
           i++;
        }
        System.out.println("Total: " + i);
    }

    public static void main(String[] args) throws ClassNotFoundException,
SQLException {

        Class.forName("org.postgresql.Driver");
        con = DriverManager.getConnection("jdbc:postgresql://localhost/test",
        "user", "****");
        con.setAutoCommit(true);
        Statement stmt = con.createStatement();

        stmt.executeUpdate("create table test (a int)");
        stmt.executeUpdate("create role test_group");
        stmt.executeUpdate("alter table test owner to test_group");
        System.out.println("Initial case");
        listprivs();
        stmt.executeUpdate("alter role test_group login");
        System.out.println("login attribute set");
        listprivs();
        stmt.executeUpdate("drop table test");
        stmt.executeUpdate("drop role test_group");
    }
}

Output:

Initial case
Total: 0
Group with login
grantee: test_group, privilege: DELETE
grantee: test_group, privilege: INSERT
grantee: test_group, privilege: REFERENCES
grantee: test_group, privilege: RULE
grantee: test_group, privilege: SELECT
grantee: test_group, privilege: TRIGGER
grantee: test_group, privilege: UPDATE
Total: 7

To my understanding, the result should be the same in both cases. The result is
the same even if there are explicit grants on the table to some other role.

Regards,

Jonas Sundman