Re: Time delayed LR (WAS Re: logical replication restrictions)

On Wed, Jan 11, 2023 at 6:16 PM Hayato Kuroda (Fujitsu)
<kuroda.hayato@fujitsu.com> wrote:
>
> Dear Shveta,
>
> Thanks for reviewing! PSA new version.
>
> > 1.
> > + errmsg("min_apply_delay must not be set when streaming = parallel")));
> > we give the same error msg for  both the cases:
> > a. when subscription is created with streaming=parallel  but we are
> > trying to alter subscription to set min_apply_delay >0
> > b. when subscription is created with some min_apply_delay and we are
> > trying to alter subscription to make it streaming=parallel.
> > For case a, error msg looks fine but for case b, I think error msg
> > should be changed slightly.
> > ALTER SUBSCRIPTION regress_testsub SET (streaming = parallel);
> > ERROR:  min_apply_delay must not be set when streaming = parallel
> > This gives the feeling that we are trying to modify min_apply_delay
> > but we are not. Maybe we can change it to:
> > "subscription with min_apply_delay must not be allowed to stream
> > parallel" (or something better)
>
> Your point that error messages are strange is right. And while
> checking other ones, I found they have very similar styles. Therefore I reworded
> ERROR messages in AlterSubscription() and parse_subscription_options() to follow
> them. Which version is better?
>

v14 one looks much better. Thanks!

thanks
Shveta