[damethos]

> Had I to do it again, I would just use UUIDv4 until it runs into issues and either date fields or a sequence where necessary

How soon is soon? And how would you handle it if you already had all PKs as UUIDs

[babbledabbler]

Probably when there is some downtime or as the opportunity presents.

I would use a date field to do ordering or a sequenced field when needed.