And then there are silent query failures. Want to change “name”: “John Smith” to “name”: {“first”: “John”, “last”: “Smith”}? Easy! No schema migration! But you

And then there are silent query failures. Want to change “name”: “John Smith” to “name”: {“first”: “John”, “last”: “Smith”}? Easy! No schema migration! But you have to modify all your queries to support both old and new formats, or stop the world and change all the data (after modifying all your code, including dynamically generated queries). And if you don’t, your queries fail silently.