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A comment on Ask HN: What are some cool but obscure data structures you know about?. Parent comment

Re:Ask HN: What are some cool but obscure data structures yo... by tarun_anand on Friday July 22, 2022 @11:00AM (#32192618)
Love DataSketches but I was wondering if there is a way to compute datasketches across time for e.g. I want to compute the users who did X and then Y in that order. Since intersection is commutative it doesnt give an answer for time ordering.

Nonetheless the best data structure I have read over last 10 years.

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