> That said, now that I have finally gotten the chance to try ltree, I think I like it a lot.
Hello Don,
Yes, after looking at ltree --which I had not done before-- I have to agree with Misa that it looks like the right
solutionfor your problem. That is not to say that "brute force" SQL couldn't provide a workable arrangement; but ltree
looksvery flexible, especially as it allows you to assign cost values to non-terminal nodes. If it were me, though,
I'dstill make use of VIEWs to report results of the workhorse queries: staring at a list of items like
"Transportation.Bicycle.Gear.Chain_ring"sounds like headache. That's a matter of taste, of course.
Bryan
