InnoDB---UNDO日誌與回滾

    事務經過trx_rsegs_t與系統表空間和臨時表空間等物理存儲聯繫起來的方式以下：ide /** Rollback segments assigned to a transaction for undo logging. */spa struct trx_rsegs_t {日誌     /** undo log ptr holding reference to a rollback se

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