Part 06 · Transactions and Concurrency Control
MVCC in InnoDB: Undo Logs
Undo logRead viewPurgeRollback segment
InnoDB updates the row in place and keeps old versions in the undo log. How a reader rebuilds the version it should see, and what long transactions cost.
⏱ 6 min · Station 54 of 123
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This chapter is being written.
The route is mapped; the full walkthrough arrives here soon.