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    PROCESSING GAP EVENTS IN A CHANGE DETECTION MANAGEMENT SYSTEM
    1.
    发明申请
    PROCESSING GAP EVENTS IN A CHANGE DETECTION MANAGEMENT SYSTEM 审中-公开

    公开(公告)号：US20190306008A1

    公开(公告)日：2019-10-03

    申请号：US15937945

    申请日：2018-03-28

    Applicant: salesforce.com, inc.

    Inventor： Mikhail Chainani ,  Vijay Devadhar ,  William Dumaresq ,  Venkat Chandrasekaran ,  Jia Chen ,  Utsavi Benani ,  Xiaodan Wang

    IPC: H04L12/24

    Abstract: A system may identify gap events in a change detection stream. When changes in data are transmitted to a downstream system, the system may identify intermittent portions of the transmission where data is missing (e.g., a gap event). In some examples, a gap event may be caused by system maintenance or one or more system errors. After identifying the gap event, the system may bridge the gap event using metadata associated with the gap event. The associated metadata may be transmitted (e.g., via a gap event identification message) to the downstream system, which may prevent the downstream system from experiencing computational inefficiencies due to the gap event.

    Parallel processing of disjoint change streams into a single stream
    2.
    发明授权
    Parallel processing of disjoint change streams into a single stream 有权

    公开(公告)号：US10678773B2

    公开(公告)日：2020-06-09

    申请号：US15686640

    申请日：2017-08-25

    Applicant: salesforce.com, inc.

    Inventor： Gary Baker ,  Mikhail Chainani ,  Varun Jobanputra ,  William Dumaresq

    IPC: G06F16/27 ,  G06F16/23 ,  G06F21/62 ,  G06F16/21 ,  G06F16/2455

    Abstract: Technology for tracking changes to a database and providing the changes to a subscribing computing device. In an illustrative implementation, a method may involve subscribing a computing device to changes of a portion of a multi-tenant database and accessing a plurality of change events stored in a log of the multi-tenant database in parallel. The method may further involve storing the plurality of change events in a persistent data store separate from the multi-tenant database and processing the plurality of change events to create an ordered set of change events. The ordered set of change events may then be provided to the computing device that subscribed to the changes.

    Undo based logical rewind in a multi-tenant system
    3.
    发明授权
    Undo based logical rewind in a multi-tenant system 有权

    公开(公告)号：US10936571B1

    公开(公告)日：2021-03-02

    申请号：US15929353

    申请日：2020-04-28

    Applicant: salesforce.com, Inc.

    Inventor： Mikhail Chainani ,  William Dumaresq ,  Xiaodan Wang

    IPC: G06F16/22 ,  G06F9/46 ,  G06F16/21

    Abstract: Methods and systems for providing a rewind of table data in a data management system include: storing a table having table data that defines a plurality of rows and a plurality of columns that define a plurality of cells; capturing change data associated with changes to at least one of the plurality of rows, the plurality of columns, and the plurality of cells; associating the change data with a transaction having a transaction identifier; storing the transaction and the change data in a change bus; retrieving the change data from the change bus based on a rewind request; performing a rewind of a subset of the changes by performing a reverse operation of the change data relating to the subset of changes and according to a reverse operation order; and outputting a clone of the table based on the rewind of the changes of the table.

    PARALLEL PROCESSING OF DISJOINT CHANGE STREAMS INTO A SINGLE STREAM
    6.
    发明申请
    PARALLEL PROCESSING OF DISJOINT CHANGE STREAMS INTO A SINGLE STREAM 审中-公开

    公开(公告)号：US20200285627A1

    公开(公告)日：2020-09-10

    申请号：US16880222

    申请日：2020-05-21

    Applicant: salesforce.com, inc.

    Inventor： Gary Baker ,  Mikhail Chainani ,  Varun Jobanputra ,  William Dumaresq

    IPC: G06F16/23 ,  G06F21/62 ,  G06F16/27 ,  G06F16/21 ,  G06F16/2455

    Abstract: Technology for tracking changes to a database and providing the changes to a subscribing computing device. In an illustrative implementation, a method may involve subscribing a computing device to changes of a portion of a multi-tenant database and accessing a plurality of change events stored in a log of the multi-tenant database in parallel. The method may further involve storing the plurality of change events in a persistent data store separate from the multi-tenant database and processing the plurality of change events to create an ordered set of change events. The ordered set of change events may then be provided to the computing device that subscribed to the changes.

    PARALLEL PROCESSING OF DISJOINT CHANGE STREAMS INTO A SINGLE STREAM
    7.
    发明申请
    PARALLEL PROCESSING OF DISJOINT CHANGE STREAMS INTO A SINGLE STREAM 审中-公开

    公开(公告)号：US20190065542A1

    公开(公告)日：2019-02-28

    申请号：US15686640

    申请日：2017-08-25

    Applicant: salesforce.com, inc.

    Inventor： Gary Baker ,  Mikhail Chainani ,  Varun Jobanputra ,  William Dumaresq

    IPC: G06F17/30 ,  G06F21/62

    Abstract: Technology for tracking changes to a database and providing the changes to a subscribing computing device. In an illustrative implementation, a method may involve subscribing a computing device to changes of a portion of a multi-tenant database and accessing a plurality of change events stored in a log of the multi-tenant database in parallel. The method may further involve storing the plurality of change events in a persistent data store separate from the multi-tenant database and processing the plurality of change events to create an ordered set of change events. The ordered set of change events may then be provided to the computing device that subscribed to the changes.

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