On Sat, Sep 30, 2006 at 04:42:13AM +0000, [EMAIL PROTECTED] wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On Fri, Sep 29, 2006 at 12:19:07PM +0200, Martijn van Oosterhout wrote: > > On Thu, Sep 28, 2006 at 06:32:11PM -0500, Jim C. Nasby wrote: > If you are at that, it's worth noting that the currency tag consists > of three capital ASCII letters. That would be fifteen bits, take or > give.
I feel silly for even mentioning this, but there are less than 256 countries in the UN, and as far as I know, each has at most one currency, so you could use 8 bits instead of 15. > That leaves forty-eightish bits for the number or about 10^14. By the above calculation, 56 bits or about 7.2 * 10^16. > THis is only half-serious, since there are other problems with > currencies (their value is dependent on time, all that Pandora's > box). It's not just dependent on time. Exchange rates vary in such a way that the relationships are not always transitive :P Cheers, D -- David Fetter <[EMAIL PROTECTED]> http://fetter.org/ phone: +1 415 235 3778 AIM: dfetter666 Skype: davidfetter Remember to vote! ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
