I'm building a product database but I've run into a problem. Some of the product items have more than one value for a cateogry (column). For example, product X can be made with aluminum or wood, in other words its available in more than one option. I would prefer avoiding the redundancies that would result from adding each combination of product item/material type. I've considered a many to many relational database, but the Wix database doesn't appear to support that type of schema. Is there anyway I can get around the brute force method?