Mmastodon TechnologySoftware first seen 1 d ago, last 1 d ago, peak #11
UUID v7 and ULID gain ground as v4 hurts database performance
Original: UUID v4 is killing your database index performance. v7 and ULID fix it with time-ordered IDs — here are the benchmarks a
Developers are highlighting that random UUID v4 identifiers fragment database indexes, hurting insert speed and lookup performance at scale. Newer alternatives such as UUID v7 and ULID embed timestamps, producing time-ordered IDs that keep indexes compact. Benchmarks and migration guides comparing the two approaches are circulating in programming communities, with many teams reassessing how they generate primary keys.
Why now: A technical writeup with benchmarks and a migration guide is prompting developers to debate identifier choices.
Evidence
- UUID v4 is killing your database index performance. v7 and ULID fix it with time-ordered IDs — here are the benchmarks and migration guide. # uuid # database # programming # performance # software # coding # development # engineering # inclusive # community UUID v4 vs. UUID v7… · hackaday@www.urbanmind.net · 3
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