y have to connect as a database
   superuser in order to produce a complete dump.  Also you will need
   superuser privileges to execute the saved script in order to be
   allowed to add users and groups, and to create databases.
  </P
><P
>   The SQL script will be written to the standard output.  Use the
   [-f|file] option or shell operators to redirect it into a file.
  </P
><P
>  <SPAN
CLASS="APPLICATION"
>pg_dumpall</SPAN
> needs to connect several
  times to the <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL<