Every installation instruction manual that I have read states that you must ensure a minimum of a 1/4 inch gap on all walls when installing flooring. The same goes for ANY obstacle that the flooring will encounter -- like the post in the picture.
This way any expansion will be easily accommodated.
9 Tips for Installing Laminate Floor - Jan 12, 2009
Cottage on the Edge: Installing a Basement Subfloor: another tip - Jan 29, 2009