Re: relfilenode statistics

Hi Bertrand,

It would be helpful to me if the reasons why we're splitting out
relfilenodestats could be more clearly spelled out. I see Andres's
comment in the thread to which you linked, but it's pretty vague about
why we should do this ("it's not nice") and whether we should do this
("I wonder if this is an argument for") and maybe that's all fine if
Andres is going to be the one to review and commit this, but even if
then it would be nice if the rest of us could follow along from home,
and right now I can't.

The commit message is often a good place to spell this kind of thing
out, because then it's included with every version of the patch you
post, and may be of some use to the eventual committer in writing
their commit message. The body of the email where you post the patch
set can be fine, too.

...Robert