Using the dll from the link that Hiroshi posted actually fixed v1 in my case (though perhaps it's just an unrelated side-effect caused by using a different random number generator which might be slower???). Thanks!

Anyhow, I would have expected v1 to work fine in this case too as the ossp-uuid implementation has provisions for preventing overlapping ids when they're generated in rapid succession. And, as I was only generating about 1 uuid/ms, I didn't think that would be pushing the limits of the algorithm.

Thanks again everyone,
Meetesh

Tom Lane wrote:
Stefan Kaltenbrunner <[EMAIL PROTECTED]> writes:
Tom Lane wrote:
Perhaps the v4 generation method would work better for you?

actually this has been reported before and seems to be an issue in the windows port of the ossp-uuid library:
http://archives.postgresql.org/pgsql-bugs/2008-05/msg00059.php

Oh, so that doesn't work either :-(.  However, at least it's been
fixed upstream:
http://archives.postgresql.org/pgsql-bugs/2008-05/msg00070.php
http://cvs.ossp.org/pkg/lib/uuid/ChangeLog

                        regards, tom lane

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