TRACKING INTERMEDIATE CHANGES IN DATABASE DATA
    491.
    发明公开

    公开(公告)号:US20240311369A1

    公开(公告)日:2024-09-19

    申请号:US18668993

    申请日:2024-05-20

    Applicant: Snowflake Inc.

    CPC classification number: G06F16/2379 G06F16/2282 G06F16/24554 G06F16/2456

    Abstract: Systems, methods, and devices for tracking a series of changes to database data are disclosed. A method includes executing a transaction to modify data in a micro-partition of a table of a database by generating a new micro-partition that embodies the transaction. The method includes associating transaction data with the new micro-partition, wherein the transaction data comprises a timestamp when the transaction was fully executed, and further includes associating modification data with the new micro-partition that comprises an indication of one or more rows of the table that were modified by the transaction. The method includes joining the transaction data with the modification data to generate joined data and querying the joined data to determine a listing of intermediate modifications made to the table between a first timestamp and a second timestamp.

    APPLICATION VERSIONING AND UPGRADE
    494.
    发明公开

    公开(公告)号:US20240281245A1

    公开(公告)日:2024-08-22

    申请号:US18470585

    申请日:2023-09-20

    Applicant: Snowflake Inc.

    CPC classification number: G06F8/71 G06F8/658 G06F9/4488

    Abstract: Methodologies for upgrading and patching an in-database application package and its application instances. A data platform determines a number of objects of an application instance running on the data platform at a previous version level of an application package of the application instance. In response to determining the number of objects of the application package running on the data platform at the previous version level of the application package is one or more, the data platform continues determining the number of objects running on the data platform at a previous version level of the application package. In response to determining the number of objects of the application instance running on the data platform at the previous version level of the application package is none, the data platform upgrades the application instance to the new version of the application package.

    TRACKING CHANGES IN DATABASE DATA
    499.
    发明公开

    公开(公告)号:US20240095229A1

    公开(公告)日:2024-03-21

    申请号:US18520845

    申请日:2023-11-28

    Applicant: Snowflake Inc.

    CPC classification number: G06F16/2358 G06F16/2455 G06F16/278

    Abstract: A method includes detecting, by at least one hardware processor, a change request for a table of a database, the table comprising a plurality of micro-partitions. A transaction associated with the change request is executed at a first timestamp. The transaction causes replacement of a first micro-partition of the plurality of micro-partitions with a second micro-partition. A change tracking column is generated in the second micro-partition. The change tracking column comprises metadata for the transaction. A delta for the table between the first timestamp and a second timestamp is generated using the metadata in the change tracking column. The delta indicates changes made to one or more rows of the table between the first time stamp and the second timestamp.

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