On Thu, Sep 21, 2023 at 4:39 AM Michael Paquier <mich...@paquier.xyz> wrote: > > On Wed, Sep 20, 2023 at 04:54:36PM +0530, Amit Kapila wrote: > > Also, the patch seems to be allowing subscription relations from PG > > >=10 to be migrated but how will that work if the corresponding > > publisher is also upgraded without slots? Won't the corresponding > > workers start failing as soon as you restart the upgrade server? Do we > > need to document the steps for users? > > Hmm? How is that related to the upgrade of the subscribers? >
It is because after upgrade of both publisher and subscriber, the subscriptions won't work. Both publisher and subscriber should work, otherwise, the logical replication set up won't work. I think we can probably do this, if we can document clearly how the user can make their logical replication set up work after upgrade. > > And how > is that different from the case where a subscriber tries to connect > back to a publisher where a slot has been dropped? > It is different because we don't drop slots automatically anywhere else. -- With Regards, Amit Kapila.
