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Database Lockless Index for Accessing Multi-Version Concurrency Control Data

机译:用于访问多版本并发控制数据的数据库无锁索引

摘要

An operation on a row of a table of a database is initiated. Thereafter, a multi-version concurrency control (MVCC) object is accessed to identify blocks associated with the row position of the row using bitwise operations. Subsequently, a row state block computed based on the row position of the row is accessed to determine a row state for the row. At least one other block is accessed, based in part on the row state, to obtain at least one timestamp from the computed offset based on the row. Next, the at least one timestamp is stored or retrieved. Related apparatus, systems, techniques and articles are also described.
机译:启动对数据库表的一行的操作。之后,访问多版本并发控制(MVCC)对象,以使用按位运算来识别与行的行位置关联的块。随后,访问基于行的行位置计算的行状态块,以确定该行的行状态。部分地基于行状态来访问至少一个其他块,以从基于行的计算出的偏移中获得至少一个时间戳。接下来,存储或检索至少一个时间戳。还描述了相关的装置,系统,技术和文章。

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