公开(公告)号：US20250068622A1

公开(公告)日：2025-02-27

申请号：US18948663

申请日：2024-11-15

Applicant: Snowflake Inc.

Inventor： Abdullah Al Mahmood ,  Tyler Jones ,  Xin Huang ,  Ganeshan Ramachandran Iyer ,  Jiaxing Liang ,  Daniel Mills ,  Subramanian Muralidhar ,  Daniel E. Sotolongo

IPC: G06F16/23 ,  G06F11/14 ,  G06F16/22

Abstract: Techniques for creating and using error tables to track errors associated with a base table are described. A command to perform an operation on a base table stored in a network-based data system can be received and executed, causing at least one error. At least one error record corresponding to the at least one error can be inputted into an error table, which is nested with the base table. Contextual information can be added to the at least one error record.

公开(公告)号：US20250013624A1

公开(公告)日：2025-01-09

申请号：US18897249

申请日：2024-09-26

Applicant: Snowflake Inc.

Inventor： Tyler Arthur Akidau ,  Istvan Cseri ,  Tyler Jones ,  Daniel E. Sotolongo

IPC: G06F16/22 ,  G06F16/23 ,  G06F16/2455

Abstract: A system or persistent table may be generated storing changelog information of a primary base table. The system table may then be used to create streams of relevant information. In some examples, the streams may read from the system table for information past a retention period of the primary table while reading from the primary table information in the retention period.

公开(公告)号：US12182130B2

公开(公告)日：2024-12-31

申请号：US18324710

申请日：2023-05-26

Applicant: Snowflake Inc.

Inventor： Tyler Arthur Akidau ,  Thierry Cruanes ,  Istvan Cseri ,  Benoit Dageville ,  Tyler Jones ,  Dinesh Chandrakant Kulkarni

IPC: G06F16/245 ,  G06F16/2453 ,  G06F16/2455

Abstract: Hybrid tables can be used in different use-case scenarios. Hybrid tables provide a flexible mechanism to support files and data in different formats while providing access to the different types of data as part of one table. This flexibility can allow the use of hybrid tables in data lake or other similar environments.

公开(公告)号：US20240386010A1

公开(公告)日：2024-11-21

申请号：US18426772

申请日：2024-01-30

Applicant: Snowflake Inc.

Inventor： Abdullah Al Mahmood ,  Tyler Jones ,  Xin Huang ,  Ganeshan Ramachandran Iyer ,  Jiaxing Liang ,  Daniel Mills ,  Subramanian Muralidhar ,  Daniel E. Sotolongo

IPC: G06F16/23 ,  G06F11/14 ,  G06F16/22

Abstract: Techniques for creating and using error tables to track errors associated with a base table are described. A command to perform an operation on a base table stored in a network-based data system can be received and executed, causing at least one error. At least one error record corresponding to the at least one error can be inputted into an error table, which is nested with the base table. Contextual information can be added to the at least one error record.

公开(公告)号：US20230353568A1

公开(公告)日：2023-11-02

申请号：US18346018

申请日：2023-06-30

Applicant: Snowflake Inc.

Inventor： Derek Denny-Brown ,  Tyler Jones ,  Isaac Kunen

IPC: H04L9/40 ,  G06F21/31

CPC classification number: H04L63/0884 ,  G06F21/31 ,  H04L63/083 ,  H04L63/10

Abstract: A credentials store definition identifying a remote credential store is received. The credential store definition includes access information to enable access to the remote credentials store. A credentials object is created in an internal database based on a credentials object definition. The credentials object identifies a security credential to retrieve from the remote credentials store to access an external resource. At runtime, a request to access the external resource is received, and based on receiving the request, the security credentials identified by the credentials object are retrieved from the remote credential store using the access information. The retrieved security credential is provided to a processing component to access the external resource.

公开(公告)号：US11762855B1

公开(公告)日：2023-09-19

申请号：US17931590

申请日：2022-09-13

Applicant: Snowflake Inc.

Inventor： Tyler Arthur Akidau ,  Fabian Hueske ,  Tyler Jones ,  Daniel Mills ,  Leon Papke ,  Prasanna Rajaperumal ,  Daniel E. Sotolongo

IPC: G06F16/2453 ,  G06F7/14

CPC classification number: G06F16/24539 ,  G06F7/14 ,  G06F16/24542

Abstract: Provided herein are systems and methods for a database object (e.g., materialized table) configuration including using the database object for incremental maintenance of query results. For example, a method includes creating a materialized table using a table definition. The table definition includes a query on one or more base tables and a lag duration value. The lag duration value indicates a maximum time period that a result of a prior refresh of the query can lag behind a current time instance. A delta set for the one or more base tables is determined. The delta set includes at least one change applied to the one or more base tables since the prior refresh of the query. The delta set is merged with the materialized table to perform an incremental update of the materialized table.

公开(公告)号：US11620310B1

公开(公告)日：2023-04-04

申请号：US17657497

申请日：2022-03-31

Applicant: Snowflake Inc.

Inventor： Tyler Arthur Akidau ,  Istvan Cseri ,  Tyler Jones ,  Dinesh Chandrakant Kulkarni ,  Daniel Mills ,  Daniel E. Sotolongo ,  Di Fei Zhang

IPC: G06F16/00 ,  G06F16/27

Abstract: Techniques for triggering pipeline execution based on data change (transaction commit) are described. The pipelines can be used for data ingestion or other specified tasks. These tasks can be operational across account, organization, cloud region, and cloud provider boundaries. The tasks can be triggered by commit post-processing. Gates in the tasks can be set up to reference change data capture information. If the gate is satisfied, tasks can be executed to set up data pipelines.

公开(公告)号：US11514023B1

公开(公告)日：2022-11-29

申请号：US17650604

申请日：2022-02-10

Applicant: Snowflake Inc.

Inventor： Istvan Cseri ,  Tyler Jones ,  Daniel Mills ,  Daniel E. Sotolongo

IPC: G06F16/23 ,  G06F16/22 ,  G06F16/2455 ,  G06F16/27

Abstract: Provided herein are systems and methods for a stream object configuration, including configuring and processing streams on views. For example, a method includes configuring by at least one hardware processor at a first computing node, a view on a source table for shared access with at least a second computing node. The view includes a query associated with the source table. The query associated with the source table is executed to obtain a plurality of query results. A stream object is generated on the view. The stream object includes the plurality of query results of executing the query and a corresponding plurality of time stamps associated with times the plurality of query results are obtained. The generated stream object is configured for the shared access with at least the second computing node.

公开(公告)号：US20220245117A1

公开(公告)日：2022-08-04

申请号：US17648622

申请日：2022-01-21

Applicant: Snowflake Inc.

Inventor： Tyler Arthur Akidau ,  Istvan Cseri ,  Tyler Jones ,  Daniel E. Sotolongo

IPC: G06F16/22 ,  G06F16/23 ,  G06F16/2455

Abstract: A system or persistent table may be generated storing changelog information of a primary base table. The system table may then be used to create streams of relevant information. In some examples, the streams may read from the system table for information past a retention period of the primary table while reading from the primary table information in the retention period.

公开(公告)号：US12189616B2

公开(公告)日：2025-01-07

申请号：US18353317

申请日：2023-07-17

Applicant: Snowflake Inc.

Inventor： Tyler Arthur Akidau ,  Tyler Jones ,  Daniel Mills ,  Leon Papke ,  Prasanna Rajaperumal ,  Daniel E. Sotolongo

IPC: G06F16/23 ,  G06F11/34

Abstract: A method includes retrieving a plurality of materialized tables (MTs). Each of the plurality of MTs includes a lag duration and refers to a corresponding base table of a plurality of base tables. The lag duration indicates a maximum time period that a result of a prior refresh of a query on the corresponding base table can lag behind a current time instance. A plurality of time instances for the MT is determined based on the lag duration and a number of prior refreshes of the corresponding base table. A plurality of aligned time instances for the plurality of MTs is determined based on the plurality of time instances for each of the plurality of MTs. Refresh operations are scheduled for the plurality of MTs at one or more of the plurality of aligned time instances that are within the maximum time period.