Re: Emit fewer vacuum records by reaping removable tuples during pruning - Mailing list pgsql-hackers

On Thu, Jan 18, 2024 at 10:42 AM Robert Haas <robertmhaas@gmail.com> wrote:
> Now, that said, I suspect that we actually could reduce FSM_CATEGORIES
> somewhat without causing any real problems, because many tables are
> going to have tuples that are all about the same size, and even in a
> table where the sizes vary more than is typical, a single tuple can't
> consume more than a quarter of the page,

Actually, I think that's a soft limit, not a hard limit. But the
granularity above that level probably doesn't need to be very high, at
leat.

--
Robert Haas
EDB: http://www.enterprisedb.com