Hey folks! I recently conducted a benchmark test in PostgreSQL comparing UUIDv4 and UUIDv7 by inserting 10 million rows of each type. I looked into various metrics like table and index disk usage, point lookup performance, and range scan performance. To my surprise, UUIDv7, being time-ordered, had a significantly better performance—up to 35% in some cases! I've detailed my findings, including the data and queries used, in an article linked in the first comment. If you'd like, I can also share a summary here!
4 Answers
It seems like a bit of an overkill to run such a massive benchmark just for UUID types, but I guess every performance gain counts! What was your main goal with this test?
How did you set up the benchmark? Did you use a specific tool, or were you using a back-end framework? I want to learn how to run my own tests to optimize my database projects.
Nice to see results on UUID performance! Is there a link to your full analysis with the queries and data used? I'd love to check it out!
Just to confirm, what specific metrics did you track during the benchmarking? I’d like to understand how you measured the performance effectively.
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