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Isnt the mysql log journal* what you are looking for?

* I dont remember the exact name but I refer the feature that is used to replicate actions if there was an error.




No. Relational DB logs are kept for short time, and do not allow for branching/merging. And even if you would store full log since day 1, the only way to check state of database at some point would be to start from scratch and reply everything to desired point. For any sizeable db, that's not practical.




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