公开(公告)号：US11734304B2

公开(公告)日：2023-08-22

申请号：US16805638

申请日：2020-02-28

Applicant: Snowflake Inc.

Inventor： Thierry Cruanes ,  Benoit Dageville ,  Marcin Zukowski

IPC: G06F16/27 ,  G06F9/48 ,  G06F9/50 ,  G06F16/14 ,  G06F16/182 ,  G06F16/21 ,  G06F16/23 ,  G06F16/2453 ,  G06F16/2455 ,  G06F16/22 ,  G06F16/951 ,  G06F16/2458 ,  G06F16/9535 ,  H04L67/568 ,  G06F16/28 ,  G06F16/25 ,  A61F5/56 ,  H04L67/1095 ,  H04L67/1097

CPC classification number: G06F16/27 ,  A61F5/566 ,  G06F9/4881 ,  G06F9/5016 ,  G06F9/5044 ,  G06F9/5083 ,  G06F9/5088 ,  G06F16/148 ,  G06F16/1827 ,  G06F16/211 ,  G06F16/221 ,  G06F16/2365 ,  G06F16/2456 ,  G06F16/2471 ,  G06F16/24532 ,  G06F16/24545 ,  G06F16/24552 ,  G06F16/254 ,  G06F16/283 ,  G06F16/951 ,  G06F16/9535 ,  H04L67/1095 ,  H04L67/1097 ,  H04L67/568

Abstract: Example caching systems and methods are described. In one implementation, a method identifies multiple files used to process a query and distributes each of the multiple files to a particular execution node to execute the query. Each execution node determines whether the distributed file is stored in the execution node's cache. If the execution node determines that the file is stored in the cache, it processes the query using the cached file. If the file is not stored in the cache, the execution node retrieves the file from a remote storage device, stores the file in the execution node's cache, and processes the query using the file.

公开(公告)号：US11726959B2

公开(公告)日：2023-08-15

申请号：US16399448

申请日：2019-04-30

Applicant: Snowflake Inc.

Inventor： Marcin Zukowski ,  Benoit Dageville ,  Thierry Cruanes ,  Ashish Motivala

IPC: G06F16/00 ,  G06F16/16 ,  G06F16/22 ,  G06F16/215 ,  G06F16/9535 ,  G06F16/2453

CPC classification number: G06F16/162 ,  G06F16/215 ,  G06F16/22 ,  G06F16/24544 ,  G06F16/9535

Abstract: A system, apparatus, and method for processing queries wherein the query includes a request to access or delete data and accessing metadata associated with the set of data, the metadata defining data characteristics of the set of data and identifying at least sets of data that need or not need to be accessed or deleted based on the metadata without accessing the actual data in the set of data; also methods to optimize processing of some operations based on the collected metadata on data.

公开(公告)号：US20230237069A1

公开(公告)日：2023-07-27

申请号：US18128130

申请日：2023-03-29

Applicant: Snowflake Inc.

Inventor： Pui Kei Johnston Chu ,  Benoit Dageville ,  Shreyas Narendra Desai ,  Sameer Deshpande ,  Subramanian Muralidhar ,  Di Wu

IPC: G06F16/27 ,  G06F16/182 ,  G06F16/245

CPC classification number: G06F16/273 ,  G06F16/245 ,  G06F16/1844

Abstract: Techniques for database replication for a remote deployment include a method performed by a data platform executing instructions on at least one hardware processor. The method includes detecting receipt of a database replication request associated with a data consumer. The database replication request is requesting availability of an instance of a primary deployment database at a remote deployment of a data platform. In response to detecting the receipt of the database replication request, an account of a data provider at the remote deployment of the data platform is provisioned with a set of replication-preparation objects associated with the primary deployment database. A database refresh operation is invoked, causing database data be pushed from the primary deployment database to a database shell in the account of the data provider at the remote deployment, to create the instance of the primary deployment database.

公开(公告)号：US20230231853A1

公开(公告)日：2023-07-20

申请号：US18184145

申请日：2023-03-15

Applicant: SNOWFLAKE INC.

Inventor： Pui Kei Johnston Chu ,  Benoit Dageville ,  Matthew J. Glickman ,  Christian Kleinerman ,  Prasanna Krishnan ,  Justin Langseth

IPC: G06F21/60 ,  G06F16/2455 ,  G06F21/62

CPC classification number: G06F21/606 ,  G06F16/2455 ,  G06F21/6218

Abstract: Systems and methods for managing membership in a private data exchange are provided herein. In one embodiment, the method includes generating a plurality of listings in a data exchange, each of the plurality of listings comprising version metadata and referencing a data set within a database. The method further includes receiving a request for access to a first listing of the plurality of listings and, in response to the request, accessing a first version of the data set that is compatible with first version metadata of the first listing.

公开(公告)号：US20230205912A1

公开(公告)日：2023-06-29

申请号：US18111821

申请日：2023-02-20

Applicant: Snowflake Inc.

Inventor： Benoit Dageville ,  Peter Povinec ,  Philipp Thomas Unterbrunner ,  Martin Hentschel

IPC: G06F21/62 ,  G06F21/60

CPC classification number: G06F21/6227 ,  G06F21/602 ,  G06F2221/2107

Abstract: A method for directing queries to encrypted database files includes acquiring a mapping that links a first encrypted file with a different encrypted file. The first encrypted file is generated based on a first encryption key. The method includes generating, by one or more processors based on the mapping, an updated mapping to link a second encrypted file with the different encrypted file. The second encrypted file is generated based on a second encryption key. The method includes determining an arrival time of a query. The method includes directing, based on the arrival time, the query to the first encrypted file or the second encrypted file.

公开(公告)号：US20230185823A1

公开(公告)日：2023-06-15

申请号：US18060441

申请日：2022-11-30

Applicant: Snowflake Inc.

Inventor： Pui Kei Johnston Chu ,  Benoit Dageville ,  Shreyas Narendra Desai ,  Khondokar Sami Iqram ,  Subramanian Muralidhar ,  Chieh-Sheng Wang ,  Di Wu

IPC: G06F16/27 ,  H04L9/40

CPC classification number: G06F16/27 ,  H04L63/0272

Abstract: A network device communication system can configure network devices, such as a first database in a multi-tenant deployment and a second database in a private deployment, to send and receive sequence messages, such as replication data, over a channel comprising a plurality of private network nodes. The first database can create a link specifying the data share and the second database. The second database selects the link and a secure area in the private deployment is created into which data is replicated and shared with further accounts in a computationally secure and efficient manner.

公开(公告)号：US11645305B2

公开(公告)日：2023-05-09

申请号：US17745451

申请日：2022-05-16

Applicant: Snowflake Inc.

Inventor： Thierry Cruanes ,  Benoit Dageville ,  Marcin Zukowski

IPC: G06F16/27 ,  G06F9/50 ,  G06F16/14 ,  G06F16/21 ,  G06F16/22 ,  G06F16/951 ,  G06F16/182 ,  G06F16/23 ,  G06F16/2455 ,  G06F16/2458 ,  G06F16/9535 ,  G06F16/2453 ,  H04L67/568 ,  G06F16/28 ,  G06F16/25 ,  A61F5/56 ,  G06F9/48 ,  H04L67/1095 ,  H04L67/1097

CPC classification number: G06F16/27 ,  A61F5/566 ,  G06F9/4881 ,  G06F9/5016 ,  G06F9/5044 ,  G06F9/5083 ,  G06F9/5088 ,  G06F16/148 ,  G06F16/1827 ,  G06F16/211 ,  G06F16/221 ,  G06F16/2365 ,  G06F16/2456 ,  G06F16/2471 ,  G06F16/24532 ,  G06F16/24545 ,  G06F16/24552 ,  G06F16/254 ,  G06F16/283 ,  G06F16/951 ,  G06F16/9535 ,  H04L67/1095 ,  H04L67/1097 ,  H04L67/568

Abstract: Example resource management systems and methods are described. In one implementation, a resource manager is configured to manage data processing tasks associated with multiple data elements. An execution platform is coupled to the resource manager and includes multiple execution nodes configured to store data retrieved from multiple remote storage devices. Each execution node includes a cache and a processor, where the cache and processor are independent of the remote storage devices. A metadata manager is configured to access metadata associated with at least a portion of the multiple data elements.

公开(公告)号：US20230134358A1

公开(公告)日：2023-05-04

申请号：US17457010

申请日：2021-11-30

Applicant: Snowflake Inc.

Inventor： Lin Chan ,  Tianyi Chen ,  Benoit Dageville ,  Yiming Kang ,  Jun Luo ,  Nithin Mahesh ,  Eric Robinson ,  Brian Smith

IPC: G06F16/2453 ,  G06F21/62 ,  G06F16/23 ,  G06F16/22

Abstract: As described herein, a N-Gram index may be created and the search may be conducted using the index, which will lead to faster search results. The N-Gram index may also include partial N-Gram components to capture more relevant data. Moreover, as described herein, the search may also take into account recent log data that has not yet been indexed. Techniques for building an index store using log data and efficiently searching the index store and log data to process search requests are described herein.

公开(公告)号：US11637836B2

公开(公告)日：2023-04-25

申请号：US17702115

申请日：2022-03-23

Applicant: SNOWFLAKE INC.

Inventor： Pui Kei Johnston Chu ,  Benoit Dageville ,  Matthew J. Glickman ,  Christian Kleinerman ,  Prasanna Krishnan ,  Justin Langseth

IPC: H04L29/06 ,  H04L9/40 ,  G06F16/2455 ,  H04L41/22 ,  H04L67/1097 ,  H04L51/212

Abstract: Systems and methods for managing membership in a private data exchange are provided herein. In one embodiment, the method includes generating a plurality of listings in a data exchange. A first listing of the plurality of listings may include a reference to a first version of shared data within a first database, where the first version is one of a plurality of versions of the shared data within the first database. The method further includes receiving a request from a member of the data exchange for access to the first listing and limiting, by a processing device, access for the member to the first version of the shared data of the first database referenced by the first listing.

公开(公告)号：US11636110B1

公开(公告)日：2023-04-25

申请号：US17457010

申请日：2021-11-30

Applicant: Snowflake Inc.

Inventor： Lin Chan ,  Tianyi Chen ,  Benoit Dageville ,  Yiming Kang ,  Jun Luo ,  Nithin Mahesh ,  Eric Robinson ,  Brian Smith

IPC: G06F16/00 ,  G06F16/2453 ,  G06F16/22 ,  G06F16/23 ,  G06F21/62

Abstract: As described herein, a N-Gram index may be created and the search may be conducted using the index, which will lead to faster search results. The N-Gram index may also include partial N-Gram components to capture more relevant data. Moreover, as described herein, the search may also take into account recent log data that has not yet been indexed. Techniques for building an index store using log data and efficiently searching the index store and log data to process search requests are described herein.