BUG #5479: PosgreSQL Documentation does not mention OPEN

The following bug has been logged online:

Bug reference:      5479
Logged by:          Kurt wagner
Email address:      kurt.wagner@leoni.com
PostgreSQL version: 8.4
Operating system:   HP-UX
Description:        PosgreSQL Documentation does not mention OPEN
Details:

When checking the Web Site
http://www.postgresql.org/docs/8.4/static/sql-commands.html

I recognized that the commands "declare" and "close" are documented, but I
failed to find "open".

Could you please add it sometime?