Re: [HACKERS] Setting pd_lower in GIN metapage

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От Tom Lane
Тема Re: [HACKERS] Setting pd_lower in GIN metapage
Дата
Msg-id 7357.1505836029@sss.pgh.pa.us
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Ответ на Re: [HACKERS] Setting pd_lower in GIN metapage  (Amit Kapila <amit.kapila16@gmail.com>)
Ответы Re: [HACKERS] Setting pd_lower in GIN metapage  (Michael Paquier <michael.paquier@gmail.com>)
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Amit Kapila <amit.kapila16@gmail.com> writes:
> On Tue, Sep 19, 2017 at 9:27 AM, Michael Paquier
> <michael.paquier@gmail.com> wrote:
>> I am not saying that no index AMs take advantage FPW compressibility
>> for their meta pages. There are cases like this one, as well as one
>> code path in BRIN where this is useful, and it is useful as well when
>> logging FPWs of the init forks for unlogged relations.

> Hmm, why is it useful for logging FPWs of the init forks for unlogged
> relations?  We don't use REGBUF_STANDARD in those cases.

But if we started to do so, that would be a concrete benefit of this
patch ...
        regards, tom lane


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