Part 11 · Real Engines, Compared

MySQL InnoDB: Clustered B+Tree and Undo Log

InnoDBClustered indexUndo logRedo logChange buffer

InnoDB's choices: rows live in the primary key's B+Tree, old versions in the undo log, and a redo log plus doublewrite buffer for durability.

⏱ 6 min · Station 96 of 123

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This chapter is being written.

The route is mapped; the full walkthrough arrives here soon.