Re: Large object + FREEZE?

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От Bruce Momjian
Тема Re: Large object + FREEZE?
Дата
Msg-id 20130702143634.GA5361@momjian.us
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Ответ на Large object + FREEZE?  (Tatsuo Ishii <ishii@postgresql.org>)
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On Tue, Jul  2, 2013 at 12:16:18PM +0900, Tatsuo Ishii wrote:
> Now that we have COPY FREEZE, I'm thinking about adding similar option
> to creating large objects. In 9.3 the maximum size of large objects
> are increased. That means, the first access to a large object will
> trigger more writes because of hint bit updation. Also subsequent
> VACUUM may trigger that as well. If we could freeze arge objects while
> creating, it could reduce the writes dramatically as COPY FREEZE
> already does.

I was not aware that large objects had to feeze each 8k segment.  Do
they?

--  Bruce Momjian  <bruce@momjian.us>        http://momjian.us EnterpriseDB
http://enterprisedb.com
 + It's impossible for everything to be true. +



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