In geomantic omen, the design of the post in front of the door is regarded as "wearing the heart", which will affect the popularity and wealth of the shop. But if we can solve this suffocation through reasonable decoration and layout, such as installing mirrors or shelves on the pillars, we can also improve the feng shui of the store.
To sum up, it is not absolutely good or bad whether there are pillars opposite the door of the shop. The key lies in how to use and resolve its influence reasonably.