Magnus Hagander <mag...@hagander.net> writes:
> On Mon, Nov 29, 2010 at 16:26, Robert Haas <robertmh...@gmail.com> wrote:
>> That works for me. But should we make a practice of writing the
>> ENTIRE SHA-ID rather than an abbreviated form, so that we could more
>> easily replace 'em later if need be?
> I think that's a good idea.
Just as a data point, there is already one 7-hex-digit collision in our
repository:
Branch: master Release: REL6_1 [aaeef4dae] 1997-04-09 08:29:35 +0000
Branch: master Release: REL6_1 [aaeef4d17] 1996-11-10 03:06:38 +0000
I think it's quite foolish to depend on abbreviated hashes to be unique
forever.
regards, tom lane
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