公开(公告)号：US11550787B1

公开(公告)日：2023-01-10

申请号：US17118307

申请日：2020-12-10

Applicant: Amazon Technologies, Inc.

Inventor： Andre Hernich ,  Vuk Ercegovac ,  Gaurav Saxena ,  Panagiotis Parchas ,  Yannis Papakonstantinou ,  Balakrishnan Narayanaswamy ,  Enrico Siragusa

IPC: G06F16/2453 ,  G06F16/2455

Abstract: Match rules for rewriting queries to use materialized views may be dynamically generated by a database system. A database system may generate rules that indicate whether a given query can use a materialized view and how to rewrite the given query to use the materialized view. A query may be received and the rules may be applied to the query to determine that the query can use the materialized view and to rewrite the query to use the materialized view. The rewritten query can then be executed.

公开(公告)号：US11841848B2

公开(公告)日：2023-12-12

申请号：US17805676

申请日：2022-06-06

Applicant: Amazon Technologies, Inc.

Inventor： Yannis Papakonstantinou ,  Vuk Ercegovac ,  Andre Hernich ,  Enrico Siragusa ,  Gaurav Saxena

IPC: G06F16/23 ,  G06F16/22 ,  G06F16/242

CPC classification number: G06F16/2393 ,  G06F16/2282 ,  G06F16/2445

Abstract: Stored procedures are generated to perform incremental updates to a materialized view for a database. When a request to create a materialized view is received, one or more internal tables are created from the database. A stored procedure is generated that when executed will update the materialized view of the database. The stored procedure may obtain changes to the database that were not included in the internal tables and update the internal tables to include the obtained changes. The stored procedure may be performed automatically and in response to requests.

公开(公告)号：US20220300492A1

公开(公告)日：2022-09-22

申请号：US17805676

申请日：2022-06-06

Applicant: Amazon Technologies, Inc.

Inventor： Yannis Papakonstantinou ,  Vuk Ercegovac ,  Andre Hernich ,  Enrico Siragusa ,  Gaurav Saxena

IPC: G06F16/23 ,  G06F16/22 ,  G06F16/242

Abstract: Stored procedures are generated to perform incremental updates to a materialized view for a database. When a request to create a materialized view is received, one or more internal tables are created from the database. A stored procedure is generated that when executed will update the materialized view of the database. The stored procedure may obtain changes to the database that were not included in the internal tables and update the internal tables to include the obtained changes. The stored procedure may be performed automatically and in response to requests.

公开(公告)号：US11354304B1

公开(公告)日：2022-06-07

申请号：US16698827

申请日：2019-11-27

Applicant: Amazon Technologies, Inc.

Inventor： Yannis Papakonstantinou ,  Vuk Ercegovac ,  Andre Hernich ,  Enrico Siragusa ,  Gaurav Saxena

IPC: G06F16/23 ,  G06F16/22 ,  G06F16/242

Abstract: Stored procedures are generated to perform incremental updates to a materialized view for a database. When a request to create a materialized view is received, one or more internal tables are created from the database. A stored procedure is generated that when executed will update the materialized view of the database. The stored procedure may obtain changes to the database that were not included in the internal tables and update the internal tables to include the obtained changes. The stored procedure may be performed automatically and in response to requests.

公开(公告)号：US11256684B1

公开(公告)日：2022-02-22

申请号：US16698823

申请日：2019-11-27

Applicant: Amazon Technologies, Inc.

Inventor： Yannis Papakonstantinou ,  Vuk Ercegovac ,  Andre Hernich ,  Enrico Siragusa ,  Gaurav Saxena

IPC: G06F16/23 ,  G06F16/22 ,  G06F16/242

Abstract: Algebraic operations are applied to change result sets for source tables to update a materialized view of a database incrementally. A procedure is determined for updating a materialized view that generates result sets for changes to source tables for a materialized view. The procedure performs one or more operations to update the materialized view using the result sets as operands in a relational algebra operator in the procedure to include the changes in the result sets in the materialized view.