The cool thing about the various verions of UUID is that they're all compatible. The differences almost all come down to database locality (and therefore perfor

The cool thing about the various verions of UUID is that they're all compatible. The differences almost all come down to database locality (and therefore performance.) The exception is if you're extracting the time portion of a time-based UUID and using it for purposes other than as a unique key, but in my experience this is typically considered bad practice and time is usually stored in a separate column for cases where it matters for business purposes.