Mark,A model that intended to try and guarantee uniqueness would provide aUUID generation service for the entire host, that was not specific to
any application, or database, possibly accessible via the loopbackaddress. It would ensure that at any given time, either the time isnew, or the sequence
On Mon, Sep 18, 2006 at 07:45:07PM -0400, [EMAIL PROTECTED] wrote:
I would not use a 100% random number generator for a UUID value as was
suggested. I prefer inserting the MAC address and the time, to at
least allow me to control if a collision is possible. This is not easy
to do using a few
On Tue, Sep 19, 2006 at 08:20:13AM -0500, Jim C. Nasby wrote:
On Mon, Sep 18, 2006 at 07:45:07PM -0400, [EMAIL PROTECTED] wrote:
I would not use a 100% random number generator for a UUID value as was
suggested. I prefer inserting the MAC address and the time, to at
least allow me to control
On Tue, Sep 19, 2006 at 09:51:23AM -0400, [EMAIL PROTECTED] wrote:
On Tue, Sep 19, 2006 at 08:20:13AM -0500, Jim C. Nasby wrote:
On Mon, Sep 18, 2006 at 07:45:07PM -0400, [EMAIL PROTECTED] wrote:
I would not use a 100% random number generator for a UUID value as was
suggested. I prefer
[EMAIL PROTECTED] wrote:
On Tue, Sep 19, 2006 at 08:20:13AM -0500, Jim C. Nasby wrote:
On Mon, Sep 18, 2006 at 07:45:07PM -0400, [EMAIL PROTECTED] wrote:
I would not use a 100% random number generator for a UUID value as was
suggested. I prefer inserting the MAC address and the time, to
On Tue, Sep 19, 2006 at 11:21:51PM -0400, Alvaro Herrera wrote:
[EMAIL PROTECTED] wrote:
On Tue, Sep 19, 2006 at 08:20:13AM -0500, Jim C. Nasby wrote:
On Mon, Sep 18, 2006 at 07:45:07PM -0400, [EMAIL PROTECTED] wrote:
I would not use a 100% random number generator for a UUID value as was
On Mon, Sep 18, 2006 at 10:33:22AM -0400, Tom Lane wrote:
Andreas Pflug [EMAIL PROTECTED] writes:
Isn't guaranteed uniqueness the very attribute that's expected? AFAIK
there's a commonly accepted algorithm providing this.
Anyone who thinks UUIDs are guaranteed unique has been drinking too
If you're going to yank it, please at least include a generator in
contrib.
Personally, I'd like to see at least some kind of generator in core,
with appropriate info/disclaimers in the docs. A simple random-number
generator is probably the best way to go in that regard. I think that
most people
On Mon, Sep 18, 2006 at 04:00:22PM -0500, Jim C. Nasby wrote:
BTW, at a former company we used SHA1s to identify files that had been
uploaded. We were wondering on the odds of 2 different files hashing to
the same value and found some statistical comparisons of probabilities.
I don't recall
On Mon, Sep 18, 2006 at 12:23:16PM -0400, [EMAIL PROTECTED] wrote:
I have UUID generation in core in my current implementation. In the
last year that I've been using it, I have already chosen twice to
generate UUIDs from my calling program. I find it faster, as it avoids
have to call out to
On Mon, 2006-09-18 at 16:00 -0500, Jim C. Nasby wrote:
BTW, at a former company we used SHA1s to identify files that had been
uploaded. We were wondering on the odds of 2 different files hashing to
the same value and found some statistical comparisons of probabilities.
I don't recall the
On Mon, Sep 18, 2006 at 04:17:50PM -0500, Jim C. Nasby wrote:
On Mon, Sep 18, 2006 at 12:23:16PM -0400, [EMAIL PROTECTED] wrote:
I have UUID generation in core in my current implementation. In the
last year that I've been using it, I have already chosen twice to
generate UUIDs from my
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