LUUID: Lexical Universally Unique Identifier
Optimized for databases
v1
- The first 36 bits are dedicated to the Unix Timestamp: seconds since 1st January 1970 (unixts)
- The next 12 bits are dedicated to providing sub-second encoding for the Nanosecond precision (nsec).
- The next 4 bits are dedicated to the version (ver).
- The next 18 bits are dedicated to providing sub-second encoding for the Nanosecond precision (nsec).
- The next 8 bits are dedicated a monotonic clock sequence counter (seq).
- The last 50 bits are filled out with random data to pad the length and provide uniqueness (rand).
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| unixts |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|unixts | nsec | ver | nsec |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| nsec | seq | rand |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| rand |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
v2
This version is the same as the v1 but it does not contain
seq
- The first 36 bits are dedicated to the Unix Timestamp: seconds since 1st January 1970 (unixts)
- The next 12 bits are dedicated to providing sub-second encoding for the Nanosecond precision (nsec).
- The next 4 bits are dedicated to the version (ver).
- The next 18 bits are dedicated to providing sub-second encoding for the Nanosecond precision (nsec).
- The last 58 bits are filled out with random data to pad the length and provide uniqueness (rand).
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| unixts |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|unixts | nsec | ver | nsec |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| nsec | rand |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| rand |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Utility functions
This module also exports some utility functions for working with LUUID.
-
add_hyphens
-
remove_hyphens
-
parse