Invention Grant
- Patent Title: Cursor-based state-collapse scheme for shared databases
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Application No.: US15288140Application Date: 2016-10-07
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Publication No.: US10599672B2Publication Date: 2020-03-24
- Inventor: Jeffrey Y. D. Lo , Pratap Pereira , Rajeev Kochhar , Vinit Rajan Kizhakkel , Clinton Grant
- Applicant: Cisco Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Behmke Innovation Group LLC
- Agent James Behmke; Stephen D. LeBarron
- Main IPC: G06F17/30
- IPC: G06F17/30 ; G06F16/27 ; G06F16/23 ; G06F16/22

Abstract:
In one embodiment, a cursor management process inserts temporal references into a plurality of records written to a table of a shared database, the temporal references indicative of an order in which the records are written. A table write cursor points at a last-written record from among the plurality of records, and read cursors point to a last-read record of a corresponding application. The cursor management process may then provide, table updates to a particular application by determining a chain of one or more updated records of the table from the last-read record of the particular application to the last-written record based on walking a particular read cursor for the particular application through the temporal references of the one or more updated records until the particular read cursor points to the last-written record according to the table write cursor.
Public/Granted literature
- US20170147669A1 CURSOR-BASED STATE-COLLAPSE SCHEME FOR SHARED DATABASES Public/Granted day:2017-05-25
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