[freehunter]

I strongly disagree that this pattern makes it easier to make changes. It makes it easier to use the data (because you know this data will always be this type), but changing the data is harder than if it did not enforce a type.

I'm not arguing that un-typed data in a DB is easy to use or a good idea, just that it's harder to change the structure of RDBMS if you didn't plan properly from the beginning.

Basically: I think data is hard and I wish there were better tools for interacting with it.