On Thu, Oct 23, 2014 at 4:32 PM, Darryl Freinkel <dhfreinkel@xxxxxxxxx> wrote:
We have used it since it was available and it worked like a dream, no
issues. Timestamps could be an issue for some but they are not for us.
Timestamps are down to 6 decimals of a second so there should be no way to
get a duplicate based on the timestamp.

6 decimals (microseconds) is not very much. Very recently there was a
thread on this list discussing generation of unique names, and it
quickly became clear that lots of folks have found that using
timestamps for this purpose was not sufficient for avoiding
collisions.

During "time-stretching" periods (where the system clock advances
slower than real time), you'd have even higher chances of collisions
if you relied (solely) on timestamps.

John Y.

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