Re: Handle infinite recursion in logical replication setup

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От Dilip Kumar
Тема Re: Handle infinite recursion in logical replication setup
Дата
Msg-id CAFiTN-tC4T2AbeVytp73sjJ6qqCNQbFWVtb25YmEZB1CzfkQvQ@mail.gmail.com
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Ответ на Re: Handle infinite recursion in logical replication setup  (Dilip Kumar <dilipbalaut@gmail.com>)
Ответы Re: Handle infinite recursion in logical replication setup  (vignesh C <vignesh21@gmail.com>)
Список pgsql-hackers
On Wed, Jul 13, 2022 at 4:49 PM Dilip Kumar <dilipbalaut@gmail.com> wrote:
>
> On Tue, Jul 12, 2022 at 2:58 PM vignesh C <vignesh21@gmail.com> wrote:
> >
> > On Tue, Jul 12, 2022 at 9:51 AM Amit Kapila <amit.kapila16@gmail.com> wrote:
>
> I find one thing  confusing about this patch.  Basically, this has two
> option 'local' and 'any', so I would assume that all the local server
> changes should be covered under the 'local' but now if we set some
> origin using 'select pg_replication_origin_session_setup('aa');' then
> changes from that session will be ignored because it has an origin id.
> I think actually the name is creating confusion, because by local it
> seems like a change which originated locally and the document is also
> specifying the same.
>
> +       If <literal>local</literal>, the subscription will request the publisher
> +       to only send changes that originated locally. If <literal>any</literal>,
>
> I think if we want to keep the option local then we should look up all
> the origin in the replication origin catalog and identify whether it
> is a local origin id or remote origin id and based on that filter out
> the changes.

On the other hand if we are interested in receiving the changes which
are generated without any origin then I think we should change 'local'
to 'none' and then in future we can provide a new option which can
send the changes generated by all the local origin?  I think other
than this the patch LGTM.


--
Regards,
Dilip Kumar
EnterpriseDB: http://www.enterprisedb.com



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