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    DATA SHARING USING ALIAS OBJECTS
    41.
    发明申请
    DATA SHARING USING ALIAS OBJECTS 有权

    公开(公告)号：US20220207169A1

    公开(公告)日：2022-06-30

    申请号：US17697744

    申请日：2022-03-17

    Applicant: SNOWFLAKE INC.

    Inventor： Benoit Dageville ,  Thierry Cruanes ,  Martin Hentschel ,  Peter Povinec

    IPC: G06F21/62 ,  G06F16/25

    Abstract: A method of sharing data in a multi-tenant database includes inspecting, by a processing device of a multiple tenant database, a sharer account to determine a presence of a grant to a second role object, in a target account, of access rights to a first role object included in the sharer account. The method includes granting the second role object, in the target account, access rights to an alias object. The first role object having one or more grants to the one or more resources of the sharer account. The target account accesses the one or more resources using the one or more grants of the first role object and using the alias object without at least one of copying the one or more resources or transmitting the one or more resources.

    SCHEDULING DATA PROCESSING TASKS USING A STREAM OF TRACKING ENTRIES
    42.
    发明申请
    SCHEDULING DATA PROCESSING TASKS USING A STREAM OF TRACKING ENTRIES 有权

    公开(公告)号：US20220164339A1

    公开(公告)日：2022-05-26

    申请号：US17650890

    申请日：2022-02-14

    Applicant: Snowflake Inc.

    Inventor： Istvan Cseri ,  Torsten Grabs ,  Benoit Dageville

    IPC: G06F16/23 ,  G06F9/46

    Abstract: Systems, methods, and devices for scheduling of data processing tasks are disclosed. A method includes performing a modification on a first set of immutable partitions storing database data to generate a second set of immutable partitions. The second set is associated with a modified version of the database data. A change tracking entry is entered in a stream of tracking entries based on committing the modification. The change tracking entry includes an indication of the modification on the first set of immutable partitions. A stream offset of the stream of tracking entries is advanced based on the entering of the change tracking entry in the stream of tracking entries. The stream offset indicates a timestamp associated with a latest committed modification to the database data. A data processing task is scheduled for execution on the modified version of the database data based on the advancing of the stream offset.

    Batch data ingestion in database systems
    45.
    发明授权
    Batch data ingestion in database systems 有权

    公开(公告)号：US11294890B2

    公开(公告)日：2022-04-05

    申请号：US16365219

    申请日：2019-03-26

    Applicant: Snowflake Inc.

    Inventor： Jiansheng Huang ,  Jiaxing Liang ,  Scott Ziegler ,  Haowei Yu ,  Benoit Dageville ,  Varun Ganesh

    IPC: G06F16/23 ,  G06F16/22 ,  G06F16/25

    Abstract: Systems, methods, and devices for batch ingestion of data into a table of a database. A method includes determining a notification indicating a presence of a user file received from a client account to be ingested into a database. The method includes identifying data in the user file and identifying a target table of the database to receive the data in the user file. The method includes generating an ingest task indicating the data and the target table. The method includes assigning the ingest task to an execution node of an execution platform, wherein the execution platform comprises a plurality of execution nodes operating independent of a plurality of shared storage devices collectively storing database data. The method includes registering metadata concerning the target table in a metadata store after the data has been fully committed to the target table by the execution node.

    Transactional processing of change tracking data
    46.
    发明授权
    Transactional processing of change tracking data 有权

    公开(公告)号：US11294882B2

    公开(公告)日：2022-04-05

    申请号：US17491106

    申请日：2021-09-30

    Applicant: Snowflake Inc.

    Inventor： Subramanian Muralidhar ,  Istvan Cseri ,  Torsten Grabs ,  Benoit Dageville

    IPC: G06F16/23 ,  G06F16/245 ,  G06F16/27 ,  G06F9/46 ,  G06F16/18

    Abstract: Systems, methods, and devices for transactional processing of change tracking data for a database are discussed. A method includes generating a micro-partition based on execution of a transaction on a table of a database, the micro-partition reflecting changes made to the table by the transaction. A change tracking entry is generated in response to the execution of the transaction. The change tracking entry includes an indication of one or more modifications made to the table by the transaction and an indication of the micro-partition generated based on the execution of the transaction. The change tracking entry is stored in the micro-partition as metadata. At least one existing micro-partition is removed from the table, responsive to storing the change tracking entry.

    Account-level namespaces for database platforms
    48.
    发明授权
    Account-level namespaces for database platforms 有权

    公开(公告)号：US11249988B2

    公开(公告)日：2022-02-15

    申请号：US16945344

    申请日：2020-07-31

    Applicant: Snowflake Inc.

    Inventor： Damien Carru ,  Thierry Cruanes ,  Istvan Cseri ,  Benoit Dageville ,  Zheng Mi ,  Subramanian Muralidhar

    IPC: G06F16/23 ,  G06F16/27 ,  G06F16/9535 ,  G06Q30/00

    Abstract: A database platform receives an object identifier from a client in association with a database session. The client is associated with a customer account of the database platform, and the database session is associated with the client. In response to receiving the object identifier, the database platform identifies a resolution namespace for the object identifier, where the resolution namespace for the object identifier is a namespace that is specified in the object identifier if the object identifier includes a specified namespace, and where the resolution namespace is otherwise a current account-level namespace of the database session. The database platform resolves the object identifier with reference to the identified resolution namespace for the object identifier, including identifying an object corresponding to the object identifier in the customer account.

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