On Mon, 1 May 2023 at 15:03, PG Bug reporting form
<noreply(at)postgresql(dot)org> wrote:
> I found that the
> alter table sometable alter somecolumn set (n_distinct=...);
> Doesn't affect distinct values estimation if sometable - declarative
> partitioned table.
It might not be that intuitive, but n_distinct_inherited is the option for that.
Maybe the documentation [1] should mention partition partitions as
well as "inheritance children" is this isn't clear.
David
[1] https://www.postgresql.org/docs/current/sql-altertable.html