发明授权
- 专利标题: Version garbage collection using snapshot lists
- 专利标题(中): 使用快照列表的版本垃圾回收
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申请号: US13750204申请日: 2013-01-25
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公开(公告)号: US09098522B2公开(公告)日: 2015-08-04
- 发明人: Juchang Lee , Chang Gyoo Park , Yongjae Chuh , Jaeyun Noh , Michael Muehle
- 申请人: Juchang Lee , Chang Gyoo Park , Yongjae Chuh , Jaeyun Noh , Michael Muehle
- 申请人地址: DE Walldorf
- 专利权人: SAP SE
- 当前专利权人: SAP SE
- 当前专利权人地址: DE Walldorf
- 代理机构: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- 主分类号: G06F17/30
- IPC分类号: G06F17/30
摘要:
Systems, methods and computer program product embodiments for providing version garbage collection using snapshot lists are disclosed herein. Version garbage collection using snapshot lists includes storing, by at least one processor, versions of a record in a database table, the record comprising a record value and a version timestamp, storing, by the at least one processor, active snapshots in two levels of active snapshot lists, an active snapshot comprising a transaction identifier and a snapshot timestamp, determining, by the at least one processor, a minimum active snapshot from the active snapshots in the two levels of active snapshot lists and deleting, by the at least one processor, versions of the record having a version timestamp earlier than a snapshot timestamp of the minimum active snapshot.
公开/授权文献
- US20140149353A1 Version Garbage Collection Using Snapshot Lists 公开/授权日:2014-05-29
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