About inheritance

Hi,

I've been talking a lot about PostgreSQL, and from time to time I get
some questions about inheritance that are pretty confusing to me.
I think that the main question is about the FK and unique constraints.
So, I gave up to use the inheritance feature as an advocacy tool. But
I would like to know what is your opinion on this subject, is there
anyone working on this issues? How I should answer these questions?

Thanks in advance,

Diogo Biazus
http://www.postgresql.org.br