Trivially, a UUID is wider (128 bits as opposed to 64). You can choose to generate your UUIDs using a Instragram[0]-like strategy so you can, for example, benef

Trivially, a UUID is wider (128 bits as opposed to 64). You can choose to generate your UUIDs using a Instragram[0]-like strategy so you can, for example, benefit from temporal/spatial locality in the indexes. There may be performance consequences of using the wider datatype, but I suspect this could be overwhelmed by other application concerns if you're dealing with data that benefits from the wider type. [0] https://engineering.instagram.com/sharding-ids-at-instagram-1cf5a71e5a5c https://engineering.instagram.com/sharding-ids-at-instagram-... Edit: Update to correct snowflake to Instagram's strategy. I make this mistake often enough that it's now self-reinforcing :/