Re: Conflict Detection and Resolution - Mailing list pgsql-hackers

On Mon, Jul 1, 2024 at 1:35 PM Masahiko Sawada <sawada.mshk@gmail.com> wrote:
>
> Setting resolvers at table-level and subscription-level sounds good to
> me. DDLs for setting resolvers at subscription-level would need the
> subscription name to be specified?
>

Yes, it should be part of the ALTER/CREATE SUBSCRIPTION command. One
idea could be to have syntax as follows:

ALTER SUBSCRIPTION name SET CONFLICT RESOLVER 'conflict_resolver' FOR
'conflict_type';
ALTER SUBSCRIPTION name RESET CONFLICT RESOLVER FOR 'conflict_type';

CREATE SUBSCRIPTION subscription_name CONNECTION 'conninfo'
PUBLICATION publication_name [, ...] CONFLICT RESOLVER
'conflict_resolver' FOR 'conflict_type';

> And another question is: a
> table-level resolver setting is precedent over all subscriber-level
> resolver settings in the database?
>

Yes.

--
With Regards,
Amit Kapila.