On Fri, Sep 08, 2023 at 09:14:59AM +0530, Amit Kapila wrote: > On Fri, Sep 8, 2023 at 9:00 AM Zhijie Hou (Fujitsu) > <houzj.f...@fujitsu.com> wrote: >>> I >>> mean that doing the latter is benefitial for the sake of any patch >>> committed and >>> as a long-term method to rely on. > > What is your worry here? Are you worried that unknowingly in the > future we could add some other way to invalidate slots during upgrades > that we won't be able to detect?
Exactly. A safety belt would not hurt, especially if the belt added is simple. The idea of a backend side elog(ERROR) with isBinaryUpgrade is tempting in the invalidation slot path. -- Michael
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