Hi,

On 11/24/23 10:45 AM, Amit Kapila wrote:
On Fri, Nov 24, 2023 at 1:53 PM Drouvot, Bertrand
<bertranddrouvot...@gmail.com> wrote:

On 11/24/23 4:35 AM, Zhijie Hou (Fujitsu) wrote:
On Thursday, November 23, 2023 11:45 PM Drouvot, Bertrand 
<bertranddrouvot...@gmail.com> wrote:

IOW, the logical slot's LSN can still be advanced after the
walreceiver shutdown if it was far bebind the physical slot's LSN.


oh yeah right, it would need much more work/discussion to handle this case.

As mentioned up-thread for publisher/subscriber I think it's fine
(thanks to the replication origin linked to the subscriber) but for
anything else that don't make use of replication origin (or similar
approach to re-start the decoding from the right place after promotion)
I feel like the user experience is not as good.

It may not be worth it to work on it for V1 but maybe something to keep
in mind as improvement for later?


Agreed, we can think of improving it in the future but there is no
correctness issue with the current implementation (not trying to do
the last fetch after the promotion signal).


Yeah agree, no correctness issue, my remark was all about trying to
improve the user experience in some cases.

Regards,

--
Bertrand Drouvot
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com


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