公开(公告)号：US12072879B2

公开(公告)日：2024-08-27

申请号：US17735493

申请日：2022-05-03

Applicant: SAP SE

Inventor： Christina Teflioudi ,  Paul Willems ,  Till Merker

IPC: G06F16/2453 ,  G06F8/41 ,  G06F9/30 ,  G06F9/50 ,  G06F16/2455

CPC classification number: G06F16/24542 ,  G06F8/48 ,  G06F9/3009 ,  G06F9/5044 ,  G06F16/24539 ,  G06F16/24554

Abstract: A method for executing a dynamically generated operation in a parallel processing framework may include executing the dynamically generated operation sequentially for a threshold quantity of times before initiating a compilation operation to generate precompiled code for the dynamically generated operation. Upon generating the precompiled code, execution of the precompiled code may be parallelized by determining, based on a quantity of time required to execute the precompiled code on a portion of a dataset, a task size. The execution of the precompiled code may be divided, based on the task size, into one or more tasks. Moreover, a corresponding quantity of worker threads may be allocated to perform the one or more tasks in parallel. Related methods and computer program products are also provided.

公开(公告)号：US11386102B2

公开(公告)日：2022-07-12

申请号：US16371609

申请日：2019-04-01

Applicant: SAP SE

Inventor： Christina Teflioudi ,  Paul Willems ,  Till Merker

IPC: G06F16/20 ,  G06F16/2458 ,  G06F9/52 ,  G06F9/54

Abstract: A query is received at a database execution engine. The query is executed by the database execution engine, the executing including executing one or more threads that operate on versions of data of the delta fragment; acquiring and releasing, by a first thread, a latch on a first version of the data of the delta fragment, the releasing is performed prior to the first thread entering a wait state; and reclaiming the first version of the data of the delta fragment from memory and during execution of the query. Related systems, methods, and articles of manufacture are also described.

公开(公告)号：US20200311044A1

公开(公告)日：2020-10-01

申请号：US16364521

申请日：2019-03-26

Applicant: SAP SE

Inventor： Till Merker ,  Christina Teflioudi ,  Paul Willems

IPC: G06F16/23 ,  G06F16/28 ,  G06F16/22

Abstract: In some aspects, there is provided a method that may include: intercepting a query requiring access to data stored in a table. The query may include an identifier, which may be associated with a row of the table and a reference to a column of the table. The method may further include preparing a table object to enable access to the data stored in the row and the column of the table. The preparing may include locating the row associated with the identifier. The preparing may further include acquiring locks for the data stored in the located row and the column in the row. The method may also include executing the query upon preparing the table object. Related systems, methods, and articles of manufacture are also described.