Re: Perform streaming logical transactions by background workers and parallel apply

On Wed, Nov 30, 2022 at 7:54 PM Amit Kapila <amit.kapila16@gmail.com> wrote:
>
> On Tue, Nov 29, 2022 at 10:18 AM houzj.fnst@fujitsu.com
> <houzj.fnst@fujitsu.com> wrote:
> >
> > Attach the new version patch which addressed all comments.
> >
>
> Some comments on v53-0002*
> ========================
> 1. I think testing the scenario where the shm_mq buffer is full
> between the leader and parallel apply worker would require a large
> amount of data and then also there is no guarantee. How about having a
> developer GUC [1] force_apply_serialize which allows us to serialize
> the changes and only after commit the parallel apply worker would be
> allowed to apply it?

+1

The code coverage report shows that we don't cover the partial
serialization codes. This GUC would improve the code coverage.

Regards,

-- 
Masahiko Sawada
Amazon Web Services: https://aws.amazon.com