On Tue, Jun 16, 2026 at 01:25:27PM -0400, Corey Huinker wrote:
> I know this is a corner-case of a corner-case, but if " AND s.stainherit
> OPERATOR(pg_catalog.=) p.inherited", we might then get a false negative
> from a situation like this:
>
> t2 inherits t1
> t1 has ineritance stats but somehow not regular stats
> t2 dis-inherits from t1, t1 is no longer p.inherited = true, but inherited
> stats remain
>
> vacuumdb goes looking for matches, sees that t1 is p.inherited = false,
> find the old inherited stat row, not realizing it should have been looking
> for a non-inherits row.
Since p.inherited is set based on the relkind, it could only change if the
table was converted from partitioned to not partitioned. IIRC that's not
currently possible.
--
nathan
