公开(公告)号：US11210184B1

公开(公告)日：2021-12-28

申请号：US15616888

申请日：2017-06-07

Applicant: Amazon Technologies, Inc.

Inventor： Anurag Windlass Gupta ,  Murali Brahmadesam ,  Changan Han ,  Alexandre Olegovich Verbitski ,  Xiaofeng Bao ,  Alisdair William Owens ,  Xiang Peng ,  Benjamin S. Ellis ,  Raman Mittal ,  Konstantin Dubinets ,  Tiffany Jianto ,  Venkatesh Nandakumar ,  Seungmin Wei

IPC: G06F11/14 ,  G06F16/23

Abstract: Online restore operations for a database engine can be performed. A request to restore a database to a previous state can be received. Previously stored content of the database, such as snapshot stored prior to the previous state, can be identified along with log records describing changes to be made to the content prior to the previous state. State information in a query engine can be updated based on the previously stored content and log records so that queries can be processed based on the state information at the database restore to the previous state.

公开(公告)号：US10909143B1

公开(公告)日：2021-02-02

申请号：US15488329

申请日：2017-04-14

Applicant: Amazon Technologies, Inc.

Inventor： Murali Brahmadesam ,  Raman Mittal ,  Li-Che Hsiao ,  Konstantin Dubinets ,  Seungmin Wei ,  Xiaofeng Bao ,  Changan Han ,  Saleem Mohideen ,  Venkatesh Nandakumar ,  Xiang Peng

IPC: G06F16/00 ,  G06F16/27 ,  G06F16/21 ,  G06F16/22 ,  G06F16/23

Abstract: Data pages of a database may be shared to create a copy of the database. A request to create a copy of the database may be received. Pointers to the data pages in the data store may be generated and stored as part of the copy of the database. When a request to read a data page in the copy of the database is received, the pointer to the data page may be accessed and the data page read from the database. When a request to modify a data page in the copy of the database is received, a modified version of the data page may be stored as part of the copy of the database and the pointer updated to point to the modified version of the data page.

公开(公告)号：US20220114064A1

公开(公告)日：2022-04-14

申请号：US17559904

申请日：2021-12-22

Applicant: Amazon Technologies, Inc.

Inventor： Anurag Windlass Gupta ,  Murali Brahmadesam ,  Changan Han ,  Alexandre Olegovich Verbitski ,  Xiaofeng Bao ,  Alisdair William Owens ,  Xiang Peng ,  Benjamin S. Ellis ,  Raman Mittal ,  Konstantin Dubinets ,  Tiffany Jianto ,  Venkatesh Nandakumar ,  Seungmin Wei

IPC: G06F11/14 ,  G06F16/23

Abstract: Online restore operations for a database engine can be performed. A request to restore a database to a previous state can be received. Previously stored content of the database, such as snapshot stored prior to the previous state, can be identified along with log records describing changes to be made to the content prior to the previous state. State information in a query engine can be updated based on the previously stored content and log records so that queries can be processed based on the state information at the database restore to the previous state.