Can you change your database paradigm? ¬_¬ A document-oriented database like CouchDB would "just work" in the most common database schema changes. Or perhaps y

Can you change your database paradigm? ¬_¬ A document-oriented database like CouchDB would "just work" in the most common database schema changes. Or perhaps you could throw upgrade-friendly data in a KV store encoded with Google Protocol Buffers.