Grzegorz Nowakowski <krecik@e-wro.net> writes:
> But I have another question: why can't be
> inheritance implemented as implicit JOIN?
Interesting thought, but joins are expensive --- this would be quite a
lot slower than the current way, I fear, especially when you consider
more than one level of inheritance. Also, switching over to this would
destroy the current usefulness of inheritance for partitioning.
regards, tom lane