On Wed, Apr 08, 2026 at 04:40:03PM -0400, Andres Freund wrote:
> Note that the whole cached state does automatically get reset at the end of
> the transaction (AtEOXact_PgStat()->pgstat_clear_snapshot()), just like it did
> before the shmem stats stuff.
I see a lot of memory used for the pgStatEntryRefHash table, too (e.g., ~16
MB for 100K tables). What's interesting is that I cannot reproduce similar
usage with views like pg_stat_all_tables. If memory was not a concern, I
think the "bool *may_free" idea would be fine. But assuming it is, we will
probably need to do something more creative.
--
nathan
