[anomaloustho]

Not sure if this is also a limitation of Snowflake. But ULIDs are only unique down to a certain timescale. (milliseconds I believe)

[sylvain_kerkour]

Not exactly, They can be sorted, by default, only down to a millisecond, but you can use a monotonic generator to have them sorted, even if more than one Ulid is generated within a millisecond.

Other than that, they have 80 bits of randomness, enough to be unique even if millions are generated per second.

https://github.com/ulid/spec