Hopefully before 4.7 we can decide what to use for explicit sorting of CR items. tree_sortkey was not designed for this use. Its just that Luke made use of it, and I needed to use something for the client. So I decided to make use of something has proven to be effective. Portability to Oracle was 2nd priority for me at that time. Since I intend to have my cms package to be released, explicit sorting of one feature I would need. And I hope to use what will be available in 4.7.
