If you use the second solution mentioned in the article and just use only sql in your model, you would end up with a more varied amount of non-standardized data

If you use the second solution mentioned in the article and just use only sql in your model, you would end up with a more varied amount of non-standardized data coming out. The other existing solution provided by the author is to switch to a key-value datastore, which still would not solve your problem.