Copy this directory to contrib/dbsize in your PostgreSQL source tree.
Then just run make; make install. Finally, load the functions into any
database using dbsize.sql.
When computing the size of a table, it does not include TOAST or index
disk space.
http://webmail.postgresql.org/~petere/dbsize.html
The tarball can be rolled into contrib -- now that I think of it I don't
know why I never did that.
Never imagined this would have anything to do with that TODO item,
though.
I figured oid2name accomplished that.
Peter Eisentraut peter_e@gmx.net