On 28.01.21 01:44, osumi(dot)takamichi(at)fujitsu(dot)com wrote:
>> (1) writing the time or LSN in the control file to indicate when/where wal_level
>> is changed to 'minimal'
>> from upper level to invalidate the old backups or make alerts to users.
> I attached the first patch which implementes this idea.
> It was aligned by pgindent and shows no regression.
It's not clear to me what this is supposed to accomplish. I read the
thread, but it's still not clear. What is one supposed to do with this
information?