On Sat, Nov 15, 2025 at 9:32 AM Bruce Momjian <[email protected]> wrote: > On Sat, Nov 15, 2025 at 06:02:53PM +0800, Rambabu V wrote: > > Hi Team, > > > > seems stats are not retained after upgrade. Below are the artifacts , is it > > expected? as per the release notes statistics should be retained. > > Uh, it is the _optimizer_ statistics that are preserved by pg_upgrade, > not the cumulative statistics system: > > https://www.postgresql.org/docs/current/monitoring-stats.html > > Yes, they are easily confused. >
I wonder if it might be worth trying to clarify this a little bit more... perhaps something like the attached? Robert Treat https://xzilla.net
v1-0001-Clarify-statistics-dumped-by-statistics.patch
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