公开(公告)号：US11455290B1

公开(公告)日：2022-09-27

申请号：US16915332

申请日：2020-06-29

Applicant: Amazon Technologies, Inc.

Inventor： Murali Brahmadesam ,  Nanda Kaushik ,  Changan Han ,  Kartikey Bhatt ,  Sangyong Hwang ,  Punit Rajgaria

IPC: G06F16/23 ,  G06F16/22 ,  G06F16/242 ,  G06F16/11 ,  G06F16/16 ,  G06F16/18 ,  G06F16/17

Abstract: Techniques for distributed database storage utilizing split volume types for redo log records and change log records are described. A database engine sends redo log data to a first set of page storage nodes and change log data to a second set of tuple storage nodes, where the change log data is stored in an indexed manner Client access to change log data may be provided through a separate set of streaming storage servers instead of through the database engine.

公开(公告)号：US11886439B1

公开(公告)日：2024-01-30

申请号：US16552776

申请日：2019-08-27

Applicant: Amazon Technologies, Inc.

Inventor： Sangyong Hwang ,  Aakash Ashwin Shah ,  Yongsik Yoon ,  Kamal Kant Gupta ,  Saileshwar Krishnamurthy

IPC: G06F16/2455 ,  G06F16/23 ,  G06F16/27

CPC classification number: G06F16/24568 ,  G06F16/2358 ,  G06F16/2379 ,  G06F16/24552 ,  G06F16/273

Abstract: Change data capture is performed asynchronously for direct transfer to a stream processor. When updates to a database as part of database transactions are performed, a transaction log is generated that describes the database transactions. The transaction log may be evaluated to determine indications of changes included in the database transactions. The indications of the changes may be stored in memory according to the database transactions that include the indications of the changes. When a database transaction is determined to be committed to the database, the change indications may be sent directly from the memory to the stream processor.

公开(公告)号：US11455305B1

公开(公告)日：2022-09-27

申请号：US16457122

申请日：2019-06-28

Applicant: Amazon Technologies, Inc.

Inventor： Sangyong Hwang ,  Yongsik Yoon ,  Kamal Kant Gupta ,  Saileshwar Krishnamurthy

IPC: G06F16/00 ,  G06F16/2453 ,  G06F16/248 ,  G06F16/23 ,  G06F16/22

Abstract: Alternative portions of a query plan to perform a query may be selected for processing partial results of a query. A query engine may generate a plan to perform a query that includes an operation that selects between different portions of the plan according to input data. The input data may be a partial result of the query generated by the data store instead of the query engine and provided to the query engine. The input data may be an individual item of the data set that is modified to a different version within a consistent view of the data set for the query.

公开(公告)号：US11860869B1

公开(公告)日：2024-01-02

申请号：US16457154

申请日：2019-06-28

Applicant: Amazon Technologies, Inc.

Inventor： Sangyong Hwang ,  Justin Levandoski ,  Yongsik Yoon ,  Kamal Kant Gupta ,  Saileshwar Krishnamurthy ,  Ippokratis Pandis ,  Michail Petropoulos

IPC: G06F16/2453 ,  G06F16/23 ,  G06F16/25

CPC classification number: G06F16/24542 ,  G06F16/2379 ,  G06F16/254

Abstract: Queries to a consistent view of a data set across different types of query engines are performed. Portions of a query received at a first type of query engine that can be performed at a different type of a query engine can be identified. A consistent view of a data set stored in a common data store can be provided by the first type of query engine to the second query engine. When the different type of query engine performs the portion of the query, the different type of query engine applies the consistent view of the data set. A result for the query can be returned by the first type of query engine based on results from the different type of query engine.