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A comment on Amazon Aurora Backtrack. Parent comment

Re:Amazon Aurora Backtrack by edge17 on Thursday May 10, 2018 @11:33AM (#17039780)
In a database Undo, in spite of the name, is the act of applying a transaction log to return to a particular state. I used to work on databases earlier in my career, so selling this as a new invention seems somewhat bizarre to me.
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Re:Amazon Aurora Backtrack by delta-v on Friday May 11, 2018 @02:55AM (#17045428)
That's not what Aurora is doing. What you have described is more like "git revert". It's O(num of transcation in the undo log).

Aurora is a log structured db, they can just reset their DB to a particular LSN. i.e. doing "git reset --hard", which's O(1).

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Re:Amazon Aurora Backtrack by awgupta on Tuesday May 15, 2018 @10:24PM (#17079545)
that's correct.
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