Re: Idea for getting rid of VACUUM FREEZE on cold pages

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От Kevin Grittner
Тема Re: Idea for getting rid of VACUUM FREEZE on cold pages
Дата
Msg-id 4BFE7E9C0200002500031B89@gw.wicourts.gov
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Ответ на Re: Idea for getting rid of VACUUM FREEZE on cold pages  (Jesper Krogh <jesper@krogh.cc>)
Ответы Re: Idea for getting rid of VACUUM FREEZE on cold pages  (Robert Haas <robertmhaas@gmail.com>)
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Jesper Krogh <jesper@krogh.cc> wrote:
> Couldn't pages that are totally filled by the same transaction, be
> frozen on the initial write?
As far as I'm aware, that can only be done if:
(a)  The tuples were written within the same transaction which
created or truncated the table.
*or*
(b)  The writing transaction and all transactions concurrent to it
have completed by the time the page is about to be written.
-Kevin


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