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

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