公开(公告)号：US11586603B1

公开(公告)日：2023-02-21

申请号：US15987841

申请日：2018-05-23

Applicant: Amazon Technologies, Inc.

Inventor： Joseph Rozenfeld ,  Stephen Brodsky

IPC: G06F16/22 ,  G06F40/18

Abstract: At a data management service, an index structure corresponding to a data sheet is stored. The data sheet comprises a grid of cells. An entry of the index structure comprises a reference to content of a cell of the data sheet. In response to a grid structure change of the data sheet, the index entry is automatically updated such that the same content remains referenced from the index entry as before. A result of a computation of an application is obtained using an identifier of the index entry to obtain content from the data sheet. The result is provided to a destination.

公开(公告)号：US12223262B1

公开(公告)日：2025-02-11

申请号：US16367092

申请日：2019-03-27

Applicant: Amazon Technologies, Inc.

Inventor： Joseph Rozenfeld ,  Stephen Brodsky ,  Robin Alan Golden ,  Aaron-Kenneth Karl Rehaag ,  Shuki Binyamin

IPC: G06F40/18 ,  H04L67/75

Abstract: A unique identifier of an expression which refers to a cell of a data sheet is stored in a repository. In an application comprising an operation based on evaluating the expression, the expression is indicated by the unique identifier. In response to detecting a write directed to the cell, a modified version of contents of the cell is stored without re-evaluating the expression. The expression is re-evaluated in response to determining that the operation of the application is to be implemented.