Re: Freeze avoidance of very large table.

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От Jim Nasby
Тема Re: Freeze avoidance of very large table.
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Msg-id 55383077.3080108@BlueTreble.com
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Ответ на Re: Freeze avoidance of very large table.  (Bruce Momjian <bruce@momjian.us>)
Ответы Re: Freeze avoidance of very large table.  (Bruce Momjian <bruce@momjian.us>)
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On 4/22/15 6:12 PM, Bruce Momjian wrote:
> My point is that for the life of 200M transactions, you would have the
> overhead of an additional file per table in the file system, and updates
> of that.  I just don't know if the overhead over the long time period
> would be smaller than the VACUUM FREEZE.  It might be fine --- I don't
> know.  People seem to focus on the big activities, while many small
> activities can lead to larger slowdowns.

Ahh. This wouldn't be for the life of 200M transactions; it would be a 
permanent fork, just like the VM is.
-- 
Jim Nasby, Data Architect, Blue Treble Consulting
Data in Trouble? Get it in Treble! http://BlueTreble.com



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