Jeff Janes writes:
> If we are not doing a scan_all and we fail to acquire a clean-up lock on
> the last block, and the last block reports that it needs freezing, then we
> continue on to wait for the clean-up lock. But there is no need, we don't
> really need to freeze the block, and we already k
On Mon, Dec 28, 2015 at 2:12 PM, Tom Lane wrote:
> I wrote:
>> Jeff Janes writes:
>>> If a partially-active table develops a slug of stable all-visible,
>>> non-empty pages at the end of it, then every autovacuum of that table
>>> will skip the end pages on the forward scan, think they might be
>
I wrote:
> Jeff Janes writes:
>> If a partially-active table develops a slug of stable all-visible,
>> non-empty pages at the end of it, then every autovacuum of that table
>> will skip the end pages on the forward scan, think they might be
>> truncatable, and take the access exclusive lock to do
Jeff Janes writes:
> If a partially-active table develops a slug of stable all-visible,
> non-empty pages at the end of it, then every autovacuum of that table
> will skip the end pages on the forward scan, think they might be
> truncatable, and take the access exclusive lock to do the truncation.
