Re: Conflict Detection and Resolution

On Wed, Jun 5, 2024 at 7:29 PM Dilip Kumar <dilipbalaut@gmail.com> wrote:
>
> On Tue, Jun 4, 2024 at 9:37 AM Amit Kapila <amit.kapila16@gmail.com> wrote:
> >
> > Can you share the use case of "earliest_timestamp_wins" resolution
> > method? It seems after the initial update on the local node, it will
> > never allow remote update to succeed which sounds a bit odd. Jan has
> > shared this and similar concerns about this resolution method, so I
> > have added him to the email as well.
> >
> I can not think of a use case exactly in this context but it's very
> common to have such a use case while designing a distributed
> application with multiple clients.  For example, when we are doing git
> push concurrently from multiple clients it is expected that the
> earliest commit wins.
>

Okay, I think it mostly boils down to something like what Shveta
mentioned where Inserts for a primary key can use
"earliest_timestamp_wins" resolution method [1]. So, it seems useful
to support this method as well.

[1] - https://www.postgresql.org/message-id/CAJpy0uC4riK8e6hQt8jcU%2BnXYmRRjnbFEapYNbmxVYjENxTw2g%40mail.gmail.com

--
With Regards,
Amit Kapila.