Create a column (default initally empty).
Set default to a valid value.
Setting default back to 'empty' doesn't work. Must set NULL.
While this is fine, it's kinda confusing. Could the interface display
NULL where it's not otherwise set?
--
Rod Taylor
Your eyes are weary from staring at the CRT. You feel sleepy. Notice
how restful it is to watch the cursor blink. Close your eyes. The
opinions stated above are yours. You cannot imagine why you ever felt
otherwise.