the installation and running of pgSQL

hey all:

  I have big problem of installation and running of
pgSQL, after initialization, Here are my postgresql
environments:
[root@localhost root]# rpm -qa | grep postgresql
postgresql-server-7.2.2-1
postgresql-devel-7.2.2-1PGDG
postgresql-7.2.2-1
postgresql-libs-7.2.2-1
root@localhost root]# cd /usr/local
[root@localhost local]# ls
bin  doc  etc  games  include  lib  libexec  sbin
share  src

why there is no directory of
/usr/local/pgsql and /usr/local/pgsql/bin

according to the book"professional Linux programming",
there should be. Do I need to download other RPMS
files?

Need your help idea.
Best Regards
john



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