pgfincore is written by:

 * Cédric Villemain <cedric@villemain.org>

I take pg_relation_size code as a model, I look at the C interesting part from
fincore (http://net.doit.wisc.edu/~plonka/fincore/), and I follow the great idea
from http://www.kennygorman.com/wordpress/?p=246.

In short, thank you Kenny Gorman, thank you Dave Plonka !

