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A comment on Amazon Aurora Backtrack. Parent comment

Re:Amazon Aurora Backtrack by freehunter on Thursday May 10, 2018 @10:40AM (#17039229)
How is this conversation helpful to this thread? The question is not "how much does Amazon keep" but "how long/much/granular can I restore".
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Re:Amazon Aurora Backtrack by walru on Thursday May 10, 2018 @10:48AM (#17039294)
That sounded like the original question to me. It's an estranged statement to believe otherwise.

So, yes, they save snapshots and take you back to the time of your choosing based off that.

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Re:Amazon Aurora Backtrack by matthewmacleod on Thursday May 10, 2018 @01:21PM (#17040943)
So, yes, they save snapshots and take you back to the time of your choosing based off that.

Okay, but you're most likely wrong with that. If you read about how Aurora works (https://www.allthingsdistributed.com/files/p1041-verbitski.p...) it seems likely that they will be using log entries to rollback database state, rather than retaining "snapshots".

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Re:Amazon Aurora Backtrack by icebraining on Thursday May 10, 2018 @10:58AM (#17039388)
An estranged statement? What does that mean?

How do you know they use the snapshots method, rather than reversing the changes?

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Re:Amazon Aurora Backtrack by icebraining on Thursday May 10, 2018 @01:09PM (#17040792)
Well, as Bucephalus355 pointed out in another comment, Oracle has a similar feature and it's not implemented using snapshots.
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