Don: Along the "is this transparent" vein; have you changed the next_sortkey function? (I'll look in CVS, but I figured I'd ask so the discussion can be documented here). I ask because bookmarks (my module) is rife with CONNECT BYs, so I've used the tree_sortkey solution quite a bit in porting to PG. Improvements sound excellent, but if I've got to go back and update my module at this stage of the game...bummer. Not that I won't *grin*, but is there going to be a point where changes like this will be "frozen" until after the release?