Re: Do we need so many hint bits?

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От Jeff Davis
Тема Re: Do we need so many hint bits?
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Msg-id 1353350797.10198.134.camel@jdavis-laptop
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Ответ на Re: Do we need so many hint bits?  (Atri Sharma <atri.jiit@gmail.com>)
Ответы Re: Do we need so many hint bits?  (Andres Freund <andres@2ndquadrant.com>)
Re: Do we need so many hint bits?  (Tom Lane <tgl@sss.pgh.pa.us>)
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On Tue, 2012-11-20 at 00:13 +0530, Atri Sharma wrote:

> My mistake...I thought we were more concerned about the cost of
> locking.
> 
> I agree, locking many data pages simultaneously could be hazardous.
> 
> This requires more thought.Maybe removing PD_ALL_VISIBLE isnt such a
> great idea after all...

As I said elsewhere in the thread, I'm not planning to introduce any
additional locking. There is already precedent in IndexOnlyNext.

Regards,Jeff Davis





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