On Fri, Sep 08, 2023 at 11:59:41AM +0530, Amit Kapila wrote: > I agree with doing something simple. So, to conclude, we agree on two > things in this thread (a) Use max_slot_wal_keep_size to -1 to start > postmaster for the old cluster during the upgrade; (b) Have an > elog(ERROR) to avoid invalidating slots during the upgrade.
+1. -- Michael
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