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- Enable versioning in Badger. - Implement SSI (serializable snapshot isolation) based transactions, which can be run concurrently, based on Yabandeh's paper: A critique of snapshot isolation (with modifications). Using a map of committed rows -> timestamp to detect conflicts. What works: - Transactions: Concurrency, Conflict detection, Read snapshots, Versioning, etc. - Get, Set, Commit - Iteration within transactions. - All the transaction logic works. The effect on other components needs to be done. [WIP] - The replay logic needs to be updated to understand txn boundaries and init readTs at start. - Existing APIs need to be removed.
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