This is the model we used at the SaaS I worked for a decade ago. It worked great...

		skywhopper 51 days ago \| parent \| context \| favorite \| on: Using the expand and contract pattern for schema c... This is the model we used at the SaaS I worked for a decade ago. It worked great to allow for smooth, zero-downtime upgrades across a fleet of thousands of DB servers serving tens of thousands of app servers and millions of active users.