Re: unique ascending numbers
This WebDNA talk-list message is from 2003
It keeps the original formatting.
numero = 50184
interpreted = N
texte = On Friday, May 9, 2003, at 10:47 AM, John Peacock wrote:> ... There is no reason you cannot use the [cart] even if it is of > varying length. The [cart] is guaranteed to be unique, no matter how > many people are hitting the site at the exact same instant. I > wouldn't get too wrapped up in recreating that particular wheel.Yeah [cart] would be the perfect tool but I still need the ascending set of numbers. Just out of curiosity I swear I thought that [cart] used to produce an ever increasing number ...???> .. Mac epoch, huh? Apart from the fact that the Mac epoch is truly > evil[1], I believe the cart code uses the Unix epoch as it's base > number. > > John > > [1] the Mac epoch is defined as the number of seconds since > 1904-01-01 00:00:00 _local time_. The problem is that an epoch is > supposed to be a fixed point in time that can be referred to uniquely > all over the planet; the Mac epoch is floating so that it is > impossible to use to reference events in time that occur in different > timezones.Humm I didn't know all that Mac epoch stuff. I just remember that whenever a mac would go belly-up it would revert to midnight Jan, 01 1904 : c)... well anyway, I still think it's maybe silly to have a unique [cart] number that fluctuates around in value between high and low.Thanks,Signed: Marc Kaiwi ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list
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Associated Messages, from the most recent to the oldest:
On Friday, May 9, 2003, at 10:47 AM, John Peacock wrote:> ... There is no reason you cannot use the [cart] even if it is of > varying length. The [cart] is guaranteed to be unique, no matter how > many people are hitting the site at the exact same instant. I > wouldn't get too wrapped up in recreating that particular wheel.Yeah [cart] would be the perfect tool but I still need the ascending set of numbers. Just out of curiosity I swear I thought that [cart] used to produce an ever increasing number ...???> .. Mac epoch, huh? Apart from the fact that the Mac epoch is truly > evil[1], I believe the cart code uses the Unix epoch as it's base > number. > > John > > [1] the Mac epoch is defined as the number of seconds since > 1904-01-01 00:00:00 _local time_. The problem is that an epoch is > supposed to be a fixed point in time that can be referred to uniquely > all over the planet; the Mac epoch is floating so that it is > impossible to use to reference events in time that occur in different > timezones.Humm I didn't know all that Mac epoch stuff. I just remember that whenever a mac would go belly-up it would revert to midnight Jan, 01 1904 : c)... well anyway, I still think it's maybe silly to have a unique [cart] number that fluctuates around in value between high and low.Thanks,Signed: Marc Kaiwi ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
marc@kaiwi.com (Marc Kaiwi)
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