I want to add some additional information to my categories table in the database for displaying some additional unique content on the bottom of the viewcat pages for each category. The content will be unique to the category, so I can't see any other way than to serve it from the database.

The one concern I have is that by adding my own custom column of field to that table will cause problems applying further updates that update the database.

I thought before I made the addition, I would ask that if modifying the database for an additional field/column has caused anybody any problems applying updates.

Maybe someone from EarlyImpact can tell me if by doing this sort of customization to the database, wether or not it could cause future problems.

The only scenario in which there would be a conflict is if a future database update includes a field with the same name, but different properties. So simply make sure to use unique field names and you will be fine.