Invention Grant
- Patent Title: Journal queries of a ledger-based database
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Application No.: US16200584Application Date: 2018-11-26
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Publication No.: US10942910B1Publication Date: 2021-03-09
- Inventor: Tate A. Certain , Yannis Papakonstantinou , Allan Henry Vermeulen , Christopher Richard Jacques de Kadt
- Applicant: Amazon Technologies, Inc.
- Applicant Address: US WA Seattle
- Assignee: Amazon Technologies, Inc.
- Current Assignee: Amazon Technologies, Inc.
- Current Assignee Address: US WA Seattle
- Agency: Davis Wright Tremaine LLP
- Main IPC: G06F16/23
- IPC: G06F16/23 ; G06F16/21 ; G06F16/248 ; G06F16/18 ; G06F16/22

Abstract:
A database management system stores data for a table as a journal of transaction. The records of the journal comprise information indicative of changes applied to a document of the table. The database receives a query on a table of transactions performed on the table. In response to the query on the table of transactions, the database generates results by retrieving and projecting the records of the journal in accordance with the query. The results of the query are indicative of changes applied to the document of the table.
Information query