program to display graphically postgres relations?

[bboett@bboett.dyndns.org (Bruno Boettcher)]

Hello,
  i was wondering if there was some tool to display graphically SQL
  tables and relations between them ... especially in the case of a
  postgres database...

-- 
ciao bboett
==============================================================
bboett@earthling.net
http://inforezo.u-strasbg.fr/~bboett http://erm1.u-strasbg.fr/~bboett
===============================================================
the total amount of intelligence on earth is constant.
human population is growing....