From: | "Matthew T(dot) O'Connor" <matthew(at)zeut(dot)net> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, pgsql-patches(at)postgresql(dot)org |
Subject: | Re: [HACKERS] Autovacuum loose ends |
Date: | 2005-07-25 15:33:37 |
Message-ID: | 42E50651.3040603@zeut.net |
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Lists: | pgsql-hackers pgsql-patches |
Tom Lane wrote:
>"Matthew T. O'Connor" <matthew(at)zeut(dot)net> writes:
>
>
>>I don't know either, but this brings up another question. Stats
>>wraparound.
>>
>We'll all be safely dead, for one thing ;-)
>
>At one update per nanosecond, it'd take approximately 300 years to wrap
>a 64-bit counter. Somehow I don't have a problem with the idea that
>Postgres would need to be rebooted that often. We'd want to fix the
>32-bit nature of XIDs long before 64-bit stats counters get to be a
>real-world issue ...
>
*sigh* Sorry, I should have done a little math before I asked that
question.....
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