Re: pg14b1 stuck in lazy_scan_prune/heap_page_prune of pg_statistic

On Tue, Jun 8, 2021 at 5:18 PM Justin Pryzby <pryzby@telsasoft.com> wrote:
> I reproduced the issue on a new/fresh cluster like this:
>
> ./postgres -D data -c autovacuum_naptime=1 -c autovacuum_analyze_scale_factor=0.005 -c
log_autovacuum_min_duration=-1
> psql -h /tmp postgres -c "CREATE TABLE t(i int); INSERT INTO t SELECT generate_series(1,99999); CREATE INDEX ON
t(i);"
> time while psql -h /tmp postgres -qc 'REINDEX (CONCURRENTLY) INDEX t_i_idx'; do :; done&
> time while psql -h /tmp postgres -qc 'ANALYZE pg_attribute'; do :; done&

I don't have time to try this out myself today, but offhand I'm pretty
confident that this is sufficient to reproduce the underlying bug
itself. And if that's true then I guess it can't have anything to do
with the pg_upgrade/pg_resetwal issue Tom just referenced, despite the
apparent similarity.

Thanks
-- 
Peter Geoghegan