Invention Grant
- Patent Title: Online reordering of database table columns
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Application No.: US15904646Application Date: 2018-02-26
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Publication No.: US10990571B1Publication Date: 2021-04-27
- Inventor: Zhaohui Zhang , Sheng-Liang Song , Aakash Shah , Kamal Kant Gupta , Xiaofeng Bao , Saileshwar Krishnamurthy
- 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: Kowert, Hood, Munyon, Rankin & Goetzel, P.C.
- Agent Robert C. Kowert
- Main IPC: G06F16/22
- IPC: G06F16/22 ; G06F16/21 ; G06F16/23

Abstract:
Online reordering for database table columns may allow a user to reorder the columns of a database table without taking the database offline. A mapping between different column orders for a database table may be generated and stored in response to a request to reorder columns in a database table. When a portion of the database table is accessed, the columns of the database table in the accessed portion of the database table may be reordered to perform the access request.
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