author is Jeff MacDonald, but actually, it was Daniel Lundin, who used logo by Dmitry Samersoff (slonik.gif, elephant in diamond) and made logo for postgresql.inc. Jeff made 'powered by" with Daniel's elphant. I specially checked archives and wayback machine to refresh my memory. http://ic.pics.livejournal.com/obartunov/24248903/38652/38652_original.png