公开(公告)号：US12093276B1

公开(公告)日：2024-09-17

申请号：US16199039

申请日：2018-11-23

Applicant: Amazon Technologies, Inc.

Inventor： Andrew James Whitaker ,  Pravin Mittal ,  Stefano Stefani ,  Kanishka Chaturvedi ,  Maruthi Manohar Reddy Devarenti ,  Dhruv Goel ,  Rajesh Iyer ,  Nitin Ahuja ,  Nilanjan Basu ,  Pushap Goyal ,  Abhilash Reddy Koppula ,  VamsiKrishna Chaitanya Manchem ,  Lishi Jiang ,  Abhijeet Pandurang More ,  Hong Yang ,  Sandeep Bhatia ,  Ming-Chuan Wu

IPC: G06F16/25 ,  G06F16/21 ,  G06F16/2453 ,  G06F16/93

CPC classification number: G06F16/252 ,  G06F16/21 ,  G06F16/24542 ,  G06F16/258 ,  G06F16/93

Abstract: A non-relational database may be emulated using a relational database with a distributed data store. A request to access the non-relational database may be received at a frontend for a relational database engine that emulates an interface for a non-relational database engine. The request may be translated into the format for the relational database engine and performed by the relational database engine. The relational database engine may access data for the non-relational database at storage nodes that store the data in a relational table column of non-relational data type.

公开(公告)号：US10970196B1

公开(公告)日：2021-04-06

申请号：US15816618

申请日：2017-11-17

Applicant: Amazon Technologies, Inc.

Inventor： Dhruv Goel ,  Pravin Mittal ,  Andrew Whitaker

IPC: G06F11/36 ,  G06F16/242

Abstract: A database testing system may generate, based on a randomization process, test data for a database. The system may generate a query that, when processed by the database, produces a first result that comprises the row. The system may modify the query based on a randomization process and in view of the semantic properties of the query language associated with the queries. The system may predict the outcome of the modifies query based on the semantic properties and on the generated test data. The system may verify that the modified query, when processed by the database, produces results consistent with the prediction.