Hi, I am running postgresql 7.2.2-1. Best, David On Fri, Sep 15, 2006 at 09:20:28AM +0800, david.lao@xxxxxxxxxxxxxxxx wrote: > this is the command output > > lrwxrwxrwx 1 root root 4 Apr 3 2003 /bin/sh -> bash > -rwxr-xr-x 1 root root 9468 Sep 5 2002 /usr/bin/pg_ctl > -rwxr-xr-x 1 root root 3074760 Sep 5 2002 /usr/bin/postgres > lrwxrwxrwx 1 root root 8 Oct 29 2005 /usr/bin/postmaster -> postgres What version of PostgreSQL are you running? If those dates are correct then I'd guess 7.2.x or earlier. What about the output of the su command? -- Michael Fuhr