what are postgresql limits?

i've posted to general mailing list, but no clear answer, so i ask to
you. i hope this is right.

what are max db and table size under Linux x86 and Linux Alpha.

Are there other Limitations? If yes, what are.
I've a big project in my mind (may be 100 Gb of data) so i must know the
numbers

Thank you for your answer and good job!

valter mazzola, http://naturalismedicina.com/linswap,  The Linux & GPL
apps banner exchange program.