Invention Grant
- Patent Title: Supporting transient snapshot with coordinated/uncoordinated commit protocol
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Application No.: US14748438Application Date: 2015-06-24
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Publication No.: US10067958B2Publication Date: 2018-09-04
- Inventor: Bishwaranjan Bhattacharjee , Mustafa Canim , Mohammad S. Hamedani , Kenneth A. Ross , Adam J. Storm
- Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Tutunjian & Bitetto, P.C.
- Agent Rahan Uddin
- Main IPC: G06F17/30
- IPC: G06F17/30

Abstract:
Methods and a system are provided. A method includes maintaining an in-page log for records in each of a plurality of data pages of a multi-version database. The method further includes adding record update information to the in-page log when a corresponding one of the records is deleted or updated. The method also includes consulting the in-page log for a recently updated one of the records or a recently deleted one of the records to determine a record status thereof. The method additionally includes spilling, by a processor-based overflow manager, to overflow pages when the in-page log is full. The data pages include any of row-oriented data pages and column-oriented data pages.
Public/Granted literature
- US20160103829A1 SUPPORTING TRANSIENT SNAPSHOT WITH COORDINATED/UNCOORDINATED COMMIT PROTOCOL Public/Granted day:2016-04-14
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