installation:
make && make install
upgrade issue is tricky. their is a lower burden of backwards
compatibility than on in-core features. for example, some of contrib
was gpl and is getting moved out/changed. however, the more popular
modules, like tsearch are very well supported. I haven't used ltree
module myself but on the surface it has some advantages and
disadvantages over the approach I suggested. However, the authors,
namely Teodor Sigaev and Oleg Bartunov are some pretty amazing coders.
merlin
Thank you for the information.
I think your article on the BoM helped me solve the issue so far. I am
not that experienced and I prefer to stay on a stable ground as long as
I am not forced to move :)
Thanks again!
Iv