Bruce Momjian <pgman@candle.pha.pa.us> writes:
> I think
> there are some papers at Berkeley or a web site that goes into it in
> detail.
I imagine there's some GiST stuff at the Berkeley papers repository
http://s2k-ftp.CS.Berkeley.EDU:8000/postgres/papers/
but I'd be surprised if it's more than an overview...
regards, tom lane