Re: Timezone database changes

Am Mittwoch, 10. Oktober 2007 schrieb Tom Lane:
> I'm not sure that I think this sort of rigid thinking works very well in
> the wonderland that is date/time behavior.  When the rules of the game
> (ie, DST laws) are changing underneath you, who is to say exactly what
> "reading out as A" means?  Arguably, TIMESTAMP WITH TIME ZONE does the
> right thing now, and would cease to do the right thing if we changed
> it as I think you intend.

If we make an appointment at 12-November-2007 at 10:00 CET (winter time) and 
next week those in charge decide to postpone the change to winter time from 
28-October-2007 to 25-November-2007, what becomes of the appointment?  Do we 
still meet when the hands point to "10", or when?

-- 
Peter Eisentraut
http://developer.postgresql.org/~petere/