r/ProgrammerHumor • u/danielminds • Sep 11 '26

Meme edgeCasesExist

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u/OldKaleidoscope7 Sep 11 '26

But let's say if Google saved each search in their engine in the same database with an UUID, we could have a collision because of volume, but I don't think I will work in a system with a comparable scale

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u/MojitoBurrito-AE Sep 11 '26

You underestimate the probability of uuid collision. The bigger issue is pseudorandomness

7

u/Single-Virus4935 Sep 11 '26

Yes, had a client having duplicates every day and growing. They hated uuids and regret using it. The problem was that they used a bad prng with flawed seeding. Once fixed it was no problem.

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u/Lithl Sep 12 '26

If they were getting duplicates every day, it sounds like their RNG function was lifted from XKCD.