On Mon, Apr 20, 2009 at 10:07 AM, Ed Murphy <emurph...@socal.rr.com> wrote: > Oi, talk about temporal databases. I think I know how to automate it > sanely, though (when recording a transaction, first generate all rate > changes between the last one and the current one; when generating a > report, assume further rate changes up to the present, but don't write > them to the database).
I believe ehird was just recording the transactions in a flat file, possibly with checkpoints where things were ratified, and then computing the current values from the sum of all of the transactions. Of course, the recordkeeping is only part of the problem; the fact that you and Pavitra can buy all of the bank's assets and have coins left over, leaving everyone else's coins completely worthless, is a bigger problem.