vanity-uuid
uuid7
| vanity-uuid | uuid7 | |
|---|---|---|
| 1 | 3 | |
| 6 | 68 | |
| - | - | |
| 10.0 | 0.0 | |
| about 4 years ago | 4 months ago | |
| Shell | Python | |
| - | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
vanity-uuid
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New UUID Formats from IETF
With the introduction of UUIDv8, my fun script to generate vanity uuids[0] can finally be spec comfortant!
[0]:https://github.com/operator-name/vanity-uuid
uuid7
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Sequential UUID in snowflake
Snowflake does not support UUID 7. What you could do is import UUID7 Python module and implement a Python UDF.
- New UUID Formats from IETF
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Understanding UUIDs, ULIDs and String Representations
To summarise the differences:
* UUIDv6 - sortable, with a layout matching UUIDv1 for backward compatibility, except the time chunks have been reordered so the uuid sorts chronologically
* UUIDv7 - sortable, based on nanoseconds since the Unix epoch. Simpler layout than UUIDv6 and more flexibility about the number of bits allocated to the time part versus sequence and randomness. The nice aspect here is the uuids sort chronologically even when created by systems using different numbers of time bits.
* UUIDv8 - more flexibility for layout. Should only be used if UUIDv6/7 aren't suitable. Which of course makes them specific to that one application which knows how to encode/decode them.
UUIDv7 is thus the better choice in general.
(I recently wrote Python and C# implementations - https://github.com/stevesimmons/uuid7 and https://github.com/stevesimmons/uuid7-csharp)
What are some alternatives?
uuid6-python - New time-based UUID formats which are suited for use as a database key
uuid7-csharp - UUIDv7 for C#. Time-ordered UUIDs with up to 50ns resolution and 48 bits of randomness.
uuid - Generate and parse UUIDs.
ksuid - K-Sortable Globally Unique IDs
prototypes - Draft Prototypes and Tests for UUIDv6 and beyond
Hashids.java - Hashids algorithm v1.0.0 implementation in Java
dart-uuid - Generate RFC4122(v1,v4,v5,v6,v7,v8) UUIDs
uuid6-ietf-draft - Next Generation UUID Formats
spec - The canonical spec for ulid
presents - Like hashids, but based on block ciphers
ulid - Universally Unique Lexicographically Sortable Identifier (ULID) in Python 3