[sandGorgon]

> And for that use-case we could change the per-cart schema on write (with additional scans to clean up carts that were written to old schema versions).

why would cart schema change on a per-cart basis ? I'm kind of wondering what usecase would this solve ?

[dantiberian]

I think the author means that different versions of the software would write different scheme versions, and it could be migrated in the background?