Re: Logical Replication upgrade

On Thu, Apr 16, 2026 at 11:16 AM David G. Johnston
<david(dot)g(dot)johnston(at)gmail(dot)com> wrote:
>
> On Wednesday, April 15, 2026, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
>>
>>
>> So, how about: "All slots on the old cluster must be usable, i.e.,
>> their pg_replication_slots.conflicting is false."?
>
>
> That works.
>
> Then we’d also change:
>
> The new cluster must not have permanent logical slots, i.e., there must be no slots where pg_replication_slots.temporary is false.
>
> To be:
>
> “The new cluster is only permitted to have temporary logical slots, i.e., ones where pg_replication_slots.temporary is true.”
>

What you wrote is correct but it is better to keep what is not allowed
for this case. Based on that, how about the following:
"The new cluster must not have any permanent logical slots; i.e., any
existing logical slots must have pg_replication_slots.temporary set to
true."

--
With Regards,
Amit Kapila.