Re: Logical Replication of sequences

On Fri, 2 Aug 2024 at 14:33, shveta malik <shveta(dot)malik(at)gmail(dot)com> wrote:
>
> On Fri, Aug 2, 2024 at 2:24 PM shveta malik <shveta(dot)malik(at)gmail(dot)com> wrote:
> >
> > On Thu, Aug 1, 2024 at 9:26 AM shveta malik <shveta(dot)malik(at)gmail(dot)com> wrote:
> > >
> > > On Mon, Jul 29, 2024 at 4:17 PM vignesh C <vignesh21(at)gmail(dot)com> wrote:
> > > >
> > > > Thanks for reporting this, these issues are fixed in the attached
> > > > v20240730_2 version patch.
> > > >
> >
> > I was reviewing the design of patch003, and I have a query. Do we need
> > to even start an apply worker and create replication slot when
> > subscription created is for 'sequences only'? IIUC, currently logical
> > replication apply worker is the one launching sequence-sync worker
> > whenever needed. I think it should be the launcher doing this job and
> > thus apply worker may even not be needed for current functionality of
> > sequence sync? Going forward when we implement incremental sync of
> > sequences, then we may have apply worker started but now it is not
> > needed.
> >
>
> Also, can we please mention the state change and 'who does what' atop
> sequencesync.c file similar to what we have atop tablesync.c file
> otherwise it is difficult to figure out the flow.

I have added this in sequencesync.c file, the changes for the same are
available at v20240805_2 version patch at [1].
[1] - https://www.postgresql.org/message-id/CALDaNm1kk1MHGk3BU_XTxay%3DdR6sMHnm4TT5cmVz2f_JXkWENQ%40mail.gmail.com

Regards,
Vignesh