COMMENT
Synopsis
COMMENT ON ( TABLE | COLUMN ) name IS 'comments'
Description
Set the comment for a object. The comment can be removed by setting the
comment to NULL.
Examples
Change the comment for the users table to be master table:
COMMENT ON TABLE users IS 'master table';
Change the comment for the users.name column to be full name:
COMMENT ON COLUMN users.name IS 'full name';