Re: visibility maps

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От Bruce Momjian
Тема Re: visibility maps
Дата
Msg-id 200901201655.n0KGtwm19279@momjian.us
обсуждение исходный текст
Ответ на Re: visibility maps  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: visibility maps  (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>)
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Tom Lane wrote:
> "Pavan Deolasee" <pavan.deolasee@gmail.com> writes:
> > OTOH I think we can still set PD_ALL_VISIBLE page header flag even
> > when there are DEAD line pointers.
> 
> That would mean the header flag means something different than the
> map bit does, which would mean extra tests need to be made before
> propagating the flag bit to the map.  This is doable, no doubt,
> but it seems pretty error-prone ...

Are there any open items from this discussion?

--  Bruce Momjian  <bruce@momjian.us>        http://momjian.us EnterpriseDB
http://enterprisedb.com
 + If your life is a hard drive, Christ can be your backup. +


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