Re:Amazon Aurora Backtrack
by mmahemoff on Thursday May 10, 2018 @10:27AM
(#17039111)
Probably reversible transactions where possible, but with original-state metadata attached to the transaction if it's required to reverse it (https://en.wikipedia.org/wiki/Memento_pattern).
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no, we don't perform destructive writes so we are able to simply mark a region of the log as to be skipped. this approach also allows us to move back and forth within the time domain even after a backtrack.