公开(公告)号：US20220027354A1

公开(公告)日：2022-01-27

申请号：US17496108

申请日：2021-10-07

Applicant: SAP SE

Inventor： Colin FLORENDO ,  Mihnea ANDREI ,  Amit PATHAK ,  Robert SCHULZE ,  Adrian DRAGUSANU ,  Reza SHERKAT ,  Sebastian SEIFERT ,  Christian LEMKE

IPC: G06F16/23 ,  G06F12/02 ,  G06F3/06 ,  G06F16/22 ,  G06F12/0882 ,  G06F16/2455 ,  G06F12/0875 ,  G06F9/48

Abstract: Disclosed herein are system, method, and computer-program product embodiments for generating a paged and in-memory representation of a database object. An embodiment operates by maintaining in-memory and paged form primitives unique to the database object or a substructure thereof in a database such that the in-memory and paged form primitives are capable of providing the in-memory and paged representations of the database objects, respectively. Thereafter, a load configuration for the database object is determined. Based on the load configuration, the in-memory and/or paged representations of the database object are generated using the in-memory form primitive or the paged form primitive unique to the database object, respectively. Subsequently, the in-memory and/or paged representations of the database object are stored in the database.

公开(公告)号：US20170154061A1

公开(公告)日：2017-06-01

申请号：US14954736

申请日：2015-11-30

Applicant: SAP SE

Inventor： Reza SHERKAT ,  Ivan Schreter ,  Robert Schulze ,  Mihnea Andrei ,  Colin Florendo ,  Christian Lemke ,  Sebastian Seifert

IPC: G06F17/30 ,  H03M7/30

CPC classification number: G06F17/30339 ,  G06F17/30336 ,  G06F17/30424 ,  G06F17/30622 ,  H03M7/60

Abstract: Disclosed herein are system and method embodiments for generating a paged inverted index. An embodiment is generated by storing a first data structure and the second data structure in a plurality of pages, where the plurality of pages are stored in the one or more memories. The first data structure is stored in the plurality of pages and includes a plurality of value identifiers, where a value identifier corresponds to an offset. The second data structure stored in the plurality of pages includes a plurality of row positions, wherein a row position is at a location that corresponds to the offset in the first data structure and identifies a position of row in a table that stores data associated with the value ID.