hidden data fields

Mike Sears <msears@vianet.ca>

From: "Mike Sears" <msears@vianet.ca>
To: "pgsql-general" <pgsql-general@postgresql.org>
Date: 2000-08-22T21:10:27Z
Lists: pgsql-general
In mysql you can make some data apear to be garbled or hiddne, I'm wondering if this can be done using psql?