The Snowflake ID is a unique identifier created by Twitter for distributed computing.
The IDs are made up of the following components:
- Epoch timestamp in millisecond precision - 41 bits
- Machine id - 10 bits
- Sequence number - 12 bits
The following are some of the benefits of creating Unique IDs in snowflake format:
It consists entirely of integers.Indexing of integers are much faster than indexing strings
Keys begin with a timestamp, so are sortable.
This is efficient and fits in the size of a bigint.