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.

公开(公告)号：US11429639B2

公开(公告)日：2022-08-30

申请号：US17570638

申请日：2022-01-07

Applicant: SNOWFLAKE INC.

Inventor： Thierry Cruanes ,  Benoit Dageville ,  Allison Waingold Lee

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 ,  A61F5/56 ,  G06F9/48 ,  H04L67/1095 ,  H04L67/1097

Abstract: A system and method for managing data storage and data access with querying data in a distributed system without buffering the results on intermediate operations in disk storage.

公开(公告)号：US11294933B2

公开(公告)日：2022-04-05

申请号：US17358988

申请日：2021-06-25

Applicant: SNOWFLAKE INC.

Inventor： Benoit Dageville ,  Thierry Cruanes ,  Marcin Zukowski ,  Allison Waingold Lee ,  Philipp Thomas Unterbrunner

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 ,  G06F9/48 ,  H04L67/1095 ,  H04L67/568 ,  H04L67/1097

Abstract: A method, apparatus, and system for join operations of a plurality of relations that are distributed over a plurality of storage locations over a network of computing components.

公开(公告)号：US20220092068A1

公开(公告)日：2022-03-24

申请号：US17538219

申请日：2021-11-30

Applicant: Snowflake Inc.

Inventor： Shrainik Jain ,  Allison Waingold Lee ,  Boyung Lee ,  Prasanna Rajaperumal ,  Jiaqi Yan ,  Yongsik Yoon

IPC: G06F16/2453

Abstract: Queries executed against a materialized view can execute up to orders of magnitude faster than equivalent queries on a source (or base) table. However, although a query can reference a materialized view directly, a user (e.g., query author) may not know about a relevant materialized view. Moreover, if a source table has multiple materialized views generated, the user may not know which materialized view to reference in the query. Thus, embodiments of the present disclosure provide techniques for automatically rewriting queries directed to a source table to utilize existing materialized views.

公开(公告)号：US11238060B2

公开(公告)日：2022-02-01

申请号：US17063612

申请日：2020-10-05

Applicant: Snowflake, Inc.

Inventor： Thierry Cruanes ,  Benoit Dageville ,  Allison Waingold Lee

IPC: G06F15/16 ,  G06F16/27 ,  G06F9/50 ,  G06F16/14 ,  G06F16/21 ,  G06F16/22 ,  G06F16/951 ,  G06F16/182 ,  G06F16/23 ,  G06F16/2455 ,  G06F16/2458 ,  G06F16/9535 ,  G06F16/2453 ,  G06F9/48 ,  H04L29/08

Abstract: A system and method for managing data storage and data access with querying data in a distributed system without buffering the results on intermediate operations in disk storage.

公开(公告)号：US11216582B2

公开(公告)日：2022-01-04

申请号：US17333343

申请日：2021-05-28

Applicant: SNOWFLAKE INC.

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

IPC: G06F21/62 ,  G06F21/78 ,  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 granting, to one or more cross-accounts, access to a share object comprising a secure view and usage functionality associated with a user-defined function (UDF) to underlying data without providing a view of the procedural logic associated with the UDF.

公开(公告)号：US11216485B2

公开(公告)日：2022-01-04

申请号：US16945456

申请日：2020-07-31

Applicant: Snowflake Inc.

Inventor： Thierry Cruanes ,  Benoit Dageville ,  Allison Waingold Lee

IPC: G06F15/16 ,  G06F16/27 ,  G06F9/50 ,  G06F16/14 ,  G06F16/21 ,  G06F16/22 ,  G06F16/951 ,  G06F16/182 ,  G06F16/23 ,  G06F16/2455 ,  G06F16/2458 ,  G06F16/9535 ,  G06F16/2453 ,  G06F9/48 ,  H04L29/08

Abstract: A system and method for managing data storage and data access with querying data in a distributed system without buffering the results on intermediate operations in disk storage.

公开(公告)号：US11216462B1

公开(公告)日：2022-01-04

申请号：US16994024

申请日：2020-08-14

Applicant: Snowflake Inc.

Inventor： Shrainik Jain ,  Allison Waingold Lee ,  Boyung Lee ,  Prasanna Rajaperumal ,  Jiaqi Yan ,  Yongsik Yoon

IPC: G06F16/2453

Abstract: Queries executed against a materialized view can execute up to orders of magnitude faster than equivalent queries on a source (or base) table. However, although a query can reference a materialized view directly, a user (e.g., query author) may not know about a relevant materialized view. Moreover, if a source table has multiple materialized views generated, the user may not know which materialized view to reference in the query. Thus, embodiments of the present disclosure provide techniques for automatically rewriting queries directed to a source table to utilize existing materialized views.

公开(公告)号：US11188670B2

公开(公告)日：2021-11-30

申请号：US16368339

申请日：2019-03-28

Applicant: Snowflake Inc.

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

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

Abstract: Systems, methods, and devices for generating a secure join of database data are disclosed. A method includes determining data stored in a first account to be compared with data stored in a second account. The method includes determining a function for generating a secure join key, wherein the secure join key includes a hashed string that hashes one or more of a data entry of the first account and a data entry of the second account. The method includes providing the secure join key to the first account and/or the second account.

公开(公告)号：US20210279359A1

公开(公告)日：2021-09-09

申请号：US17321327

申请日：2021-05-14

Applicant: Snowflake Inc.

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

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

Abstract: Systems, methods, and devices for generating a secure join of database data are disclosed. A method includes creating a secure view of datapoints of a consumer account and processing, 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 secure join key comprises a hash string of the datapoints of the provider account and the datapoints of the consumer account, and wherein the datapoints of the consumer account are processed via the secure view. The method further includes executing a consumer function to analyze the hash string of datapoints of the secure join key for common data points.