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    Data sharing using secure views
    11.
    发明授权
    Data sharing using secure views 有权

    公开(公告)号：US11379605B2

    公开(公告)日：2022-07-05

    申请号：US17332793

    申请日：2021-05-27

    Applicant: Snowflake Inc.

    Inventor： Allison Waingold Lee ,  Peter Povinec ,  Martin Hentschel ,  Robert Muglia

    IPC: G06F7/04 ,  H04N7/16 ,  G06F21/62 ,  G06F16/245 ,  G06F16/22

    Abstract: Systems, methods, and devices for secure view-based data sharing are disclosed. A method in accordance with embodiments disclosed herein comprises associating, by one or more processors, view privileges of a secure view with one or more of a plurality of underlying details of a share object of a first account such that each of the one or more underlying details of the share object comprises a definition of the secure view. The method further comprises: in response to receiving a request from a second account to access any underlying details of the share object, using a secure projection that does not match any rewrite rule preconditions to rewrite a query plan of the request to prevent expressions that do not originate from the secure view from being pushed down below a boundary of the secure view.

    DATA SHARING USING SECURE VIEWS
    13.
    发明申请
    DATA SHARING USING SECURE VIEWS 有权

    公开(公告)号：US20210286892A1

    公开(公告)日：2021-09-16

    申请号：US17332793

    申请日：2021-05-27

    Applicant: Snowflake Inc.

    Inventor： Allison Waingold Lee ,  Peter Povinec ,  Martin Hentschel ,  Robert Muglia

    IPC: G06F21/62 ,  G06F16/245 ,  G06F16/22

    Abstract: Systems, methods, and devices for secure view-based data sharing are disclosed. A method in accordance with embodiments disclosed herein comprises associating, by one or more processors, view privileges of a secure view with one or more of a plurality of underlying details of a share object of a first account such that each of the one or more underlying details of the share object comprises a definition of the secure view. The method further comprises: in response to receiving a request from a second account to access any underlying details of the share object, using a secure projection that does not match any rewrite rule preconditions to rewrite a query plan of the request to prevent expressions that do not originate from the secure view from being pushed down below a boundary of the secure view.

    Secure data sharing in a multi-tenant database system
    14.
    发明授权
    Secure data sharing in a multi-tenant database system 有权

    公开(公告)号：US11048815B2

    公开(公告)日：2021-06-29

    申请号：US16055824

    申请日：2018-08-06

    Applicant: Snowflake Inc.

    Inventor： Allison Waingold Lee ,  Peter Povinec ,  Martin Hentschel ,  Robert Muglia

    IPC: G06F21/62 ,  G06F21/60 ,  G06F16/245 ,  G06F16/22 ,  G06F21/71

    Abstract: Systems, methods, and devices for implementing secure views for zero-copy data sharing in a multi-tenant database system are disclosed. A method includes generating a share object in a first account comprising a share role. The method includes associating view privileges for the share object such that an underlying detail of the share object comprises a secure view definition. The method includes granting, to a second account, cross-account access rights to the share role or share object in the first account. The method includes receiving a request from the second account to access data or services of the first account and providing a response to the second account based on the data or services of the first account. The method is such that the underlying detail of the share object that comprises the secure view definition is hidden from the second account and visible to the first account.

    Secure Data Sharing In A Multi-Tenant Database System
    16.
    发明申请
    Secure Data Sharing In A Multi-Tenant Database System 审中-公开

    公开(公告)号：US20200042734A1

    公开(公告)日：2020-02-06

    申请号：US16241463

    申请日：2019-01-07

    Applicant: Snowflake Inc.

    Inventor： Allison Waingold Lee ,  Peter Povinec ,  Martin Hentschel ,  Robert Muglia

    IPC: G06F21/62 ,  G06F16/245 ,  G06F16/22

    Abstract: Systems, methods, and devices for implementing secure views for zero-copy data sharing in a multi-tenant database system are disclosed. A method includes generating a share object in a first account comprising a share role. The method includes associating view privileges for the share object such that an underlying detail of the share object comprises a secure user-defined function definition. The method includes granting, to a second account, cross-account access rights to the share role or share object in the first account. The method includes receiving a request from the second account to access data or services of the first account and providing a response to the second account based on the data or services of the first account. The method is such that the underlying detail of the share object that comprises the secure user-defined function definition is hidden from the second account and visible to the first account.

    Data overlap count adjustment in a multiple tenant database system
    18.
    发明授权
    Data overlap count adjustment in a multiple tenant database system 有权

    公开(公告)号：US11461493B1

    公开(公告)日：2022-10-04

    申请号：US17847681

    申请日：2022-06-23

    Applicant: SNOWFLAKE INC.

    Inventor： Justin Langseth ,  Matthew J. Glickman ,  Christian Kleinerman ,  Robert Muglia ,  Daniel Freundel ,  Thierry Cruanes ,  Allison Waingold Lee

    IPC: H04L29/06 ,  G06F21/62 ,  G06F16/2455 ,  H04L9/32

    Abstract: Systems, methods, and devices for generating a secure join of database data are disclosed. A method creates a secure view of datapoints of a consumer account and processes, using a secure user defined function (UDF), the datapoints of the consumer account and datapoints of a provider account to generate a secure join key. The datapoints of the consumer account are provided to the secure UDF using the secure view. The method further performs, by a processor, an analysis of the datapoints of the consumer account and the datapoints of the provider account of the secure join key. The analysis returns a count value of overlapping datapoints between the consumer account and the provider account. The method further adjusts the count value of overlapping datapoints based on a number of distinct rows associated with the provider account, and provides the adjusted count value of overlapping datapoints to the consumer account.

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