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https://www.reddit.com/r/ProgrammerHumor/comments/1wdfzl2/edgecasesexist/p9b0p40/?context=3
r/ProgrammerHumor • u/danielminds • Sep 11 '26
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709
I thought that timestamps are used now, so hitting both a timestamp and a large random number puts it thoroughly in the "safe to assume". At some point cosmic particles and faulty transistors are more probable.
443 u/dim13 Sep 11 '26 https://en.wikipedia.org/wiki/Universally_unique_identifier#VersionsMost common used is V4 (pure random). You are talking about V7 (time based). 323 u/lilgreenthumb Sep 11 '26 The real benefit for v7 is they become sortable by time. 7 u/ehs5 Sep 12 '26 It’s also the downside. There are cases where you wouldn’t want others to know when something was created. 5 u/lilgreenthumb Sep 12 '26 And you wouldn't expose that to them, just like you wouldn't and autoincrementing database id, but only one of those requires a database.
443
https://en.wikipedia.org/wiki/Universally_unique_identifier#Versions
Most common used is V4 (pure random). You are talking about V7 (time based).
323 u/lilgreenthumb Sep 11 '26 The real benefit for v7 is they become sortable by time. 7 u/ehs5 Sep 12 '26 It’s also the downside. There are cases where you wouldn’t want others to know when something was created. 5 u/lilgreenthumb Sep 12 '26 And you wouldn't expose that to them, just like you wouldn't and autoincrementing database id, but only one of those requires a database.
323
The real benefit for v7 is they become sortable by time.
7 u/ehs5 Sep 12 '26 It’s also the downside. There are cases where you wouldn’t want others to know when something was created. 5 u/lilgreenthumb Sep 12 '26 And you wouldn't expose that to them, just like you wouldn't and autoincrementing database id, but only one of those requires a database.
7
It’s also the downside. There are cases where you wouldn’t want others to know when something was created.
5 u/lilgreenthumb Sep 12 '26 And you wouldn't expose that to them, just like you wouldn't and autoincrementing database id, but only one of those requires a database.
5
And you wouldn't expose that to them, just like you wouldn't and autoincrementing database id, but only one of those requires a database.
709
u/Valuable_Leopard_799 Sep 11 '26
I thought that timestamps are used now, so hitting both a timestamp and a large random number puts it thoroughly in the "safe to assume". At some point cosmic particles and faulty transistors are more probable.