Viewing profile — sergeyprokhoren
sergeyprokhoren
HN member- Joined
- Sat, Jul 12, 2025, 7:39 AM UTC
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About sergeyprokhoren
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Recent public activity
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Comment #48519340
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Comment #45679457
The PostgreSQL uuidv7() developers are leaning toward a different approach to solving timestamp leaks, similar to FHSS ( https://en.wikipedia.org/wiki/Frequency-hopping_spread_spec…
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Comment #45378821
PostgreSQL Gains a Built-in UUIDv7 Generation Function for Primary Keys (many interesting details) https://habr.com/en/news/950340/
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Comment #45363796
Offsetting the timestamp is much better. Use the uuidv7(INTERVAL shift) function in PostgreSQL 18 https://www.postgresql.org/docs/18/functions-uuid.html in Percona Server for MySQL…
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Comment #45326793
95% of the comments here have nothing to do with reality. What May Surprise You About UUIDv7 https://medium.com/@sergeyprokhorenko777/what-may-surprise-y...
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Comment #45296004
If you shift the timestamp forward by 5 thousand years, it can hardly be called just a decrease in precision.
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Comment #45279215
Bad idea. In PostgreSQL 18 the optional parameter shift will shift the computed timestamp by the given interval https://www.postgresql.org/docs/18/functions-uuid.html
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Comment #45162425
https://biggo.com/news/202509050143_6NF_File_Format_Debate
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Comment #45127487
What does looks "old school" mean? Do you want to wrap this format in JSON like JSON-LD? I don't mind
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Comment #45125389
See "DSL for Bitemporal Sixth Normal Form with UUIDv7" https://github.com/sergeyprokhorenko/6NF_DSL
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Comment #45124643
This is a fairly common problem. Data is often transferred between information systems in denormalized form (tables with hundreds of columns - attributes). In the data warehouse, t…
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Comment #44858683
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Comment #44540142
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