Re: [COMMITTERS] pgsql: Clamp last_anl_tuples to n_live_tuples, in case we vacuum a table - Mailing list pgsql-hackers

Alvaro Herrera <alvherre@commandprompt.com> writes:
> On a loosely related matter, how about changing pg_class.relpages to
> pg_class.reldensity?

IIRC, I considered this earlier, and rejected it because it doesn't cope
well with the corner case relpages == 0.  Also, it'll break existing
clients that expect to find relpages and reltuples, if there are any
--- which is not a very strong argument, certainly, but the argument in
favor of changing seems even weaker.
        regards, tom lane