Re: BUG #10533: 9.4 beta1 assertion failure in autovacuum process

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>
Cc: Andres Freund <andres(at)2ndquadrant(dot)com>, levertond(at)googlemail(dot)com, pgsql-bugs(at)postgresql(dot)org, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
Subject: Re: BUG #10533: 9.4 beta1 assertion failure in autovacuum process
Date: 2014-06-09 14:21:54
Message-ID: 28011.1402323714@sss.pgh.pa.us
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Heikki Linnakangas <hlinnakangas(at)vmware(dot)com> writes:
> On 06/09/2014 03:46 PM, Andres Freund wrote:
>> Before I start working on a patch along those lines, do you see any
>> problems with making the critical section smaller?

> One subtle difference is that the PD_ALL_VISIBLE flag will not be
> included in the full-page-image that log_heap_page() might take. But
> that seems OK. visibilitymap_set() writes a WAL record that sets it at
> replay.

Huh? The visibility map call is after the page image would be taken in
any case.

regards, tom lane

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