An easy question about creating a primary key

Ligia Pimentel <lmpimentel@yahoo.com>

From: "Ligia Pimentel" <lmpimentel@yahoo.com>
To: pgsql-sql@postgresql.org
Date: 2001-11-29T23:22:22Z
Lists: pgsql-hackers, pgsql-sql
Hello.

I'm using postgres 7.1. I have an easy question...

I want to create a primary key constraint on an existing table. The
documentation says I can't . Please confirm. If this is true... How can I
rename the existing table so I can create the new one and copy the data?

Thank you

Ligia