Depends on your database. For example, Spanner it is better to use random numbers for the primary index, as monotonically increasing ints will cause hotspots on

Depends on your database. For example, Spanner it is better to use random numbers for the primary index, as monotonically increasing ints will cause hotspots on the database. https://cloud.google.com/spanner/docs/schema-design#choosing_a_primary_key https://cloud.google.com/spanner/docs/schema-design#choosing...