公开(公告)号：US20170293453A1

公开(公告)日：2017-10-12

申请号：US15632110

申请日：2017-06-23

Applicant: SAP SE

Inventor： Ivan Schreter ,  Dirk Thomsen ,  Colin Florendo ,  Blaine French

IPC: G06F3/06 ,  G06F17/30

CPC classification number: G06F3/0661 ,  G06F3/0608 ,  G06F3/0673 ,  G06F16/1744 ,  G06F16/22 ,  G06F16/221 ,  G06F16/2282 ,  G06F16/23 ,  G06F16/24554

Abstract: Data records of a data set can be stored in multiple main part fragments retained in on-disk storage. Each fragment can include a number of data records that is equal to or less than a defined maximum fragment size. Using a compression that is optimized for each fragment, each fragment can be compressed. After reading at least one of the fragments into main system memory from the on-disk storage, an operation can be performed on the fragment or fragments while the in the main system memory.

公开(公告)号：US09690799B2

公开(公告)日：2017-06-27

申请号：US15015042

申请日：2016-02-03

Applicant: SAP SE

Inventor： Ivan Schreter ,  Dirk Thomsen ,  Colin Florendo ,  Blaine French

IPC: G06F17/30

CPC classification number: G06F3/0661 ,  G06F3/0608 ,  G06F3/0673 ,  G06F17/30153 ,  G06F17/30312 ,  G06F17/30315 ,  G06F17/30339 ,  G06F17/30345 ,  G06F17/30486

Abstract: Data records of a data set can be stored in multiple main part fragments retained in on-disk storage. Each fragment can include a number of data records that is equal to or less than a defined maximum fragment size. Using a compression that is optimized for each fragment, each fragment can be compressed. After reading at least one of the fragments into main system memory from the on-disk storage, an operation can be performed on the fragment or fragments while the in the main system memory.

公开(公告)号：US10740036B2

公开(公告)日：2020-08-11

申请号：US15632110

申请日：2017-06-23

Applicant: SAP SE

Inventor： Ivan Schreter ,  Dirk Thomsen ,  Colin Florendo ,  Blaine French

IPC: G06F16/22 ,  G06F3/06 ,  G06F16/23 ,  G06F16/174 ,  G06F16/2455

Abstract: Data records of a data set can be stored in multiple main part fragments retained in on-disk storage. Each fragment can include a number of data records that is equal to or less than a defined maximum fragment size. Using a compression that is optimized for each fragment, each fragment can be compressed. After reading at least one of the fragments into main system memory from the on-disk storage, an operation can be performed on the fragment or fragments while the in the main system memory.

公开(公告)号：US20160154815A1

公开(公告)日：2016-06-02

申请号：US15015042

申请日：2016-02-03

Applicant: SAP SE

Inventor： Ivan Schreter ,  Dirk Thomsen ,  Colin Florendo ,  Blaine French

IPC: G06F17/30

CPC classification number: G06F3/0661 ,  G06F3/0608 ,  G06F3/0673 ,  G06F17/30153 ,  G06F17/30312 ,  G06F17/30315 ,  G06F17/30339 ,  G06F17/30345 ,  G06F17/30486

Abstract: Data records of a data set can be stored in multiple main part fragments retained in on-disk storage. Each fragment can include a number of data records that is equal to or less than a defined maximum fragment size. Using a compression that is optimized for each fragment, each fragment can be compressed. After reading at least one of the fragments into main system memory from the on-disk storage, an operation can be performed on the fragment or fragments while the in the main system memory.

Abstract translation: 数据集的数据记录可以存储在保留在磁盘存储中的多个主要部分片段中。 每个片段可以包括等于或小于所定义的最大片段大小的多个数据记录。 使用针对每个片段优化的压缩，可以压缩每个片段。 在从磁盘存储器读入主系统存储器中的至少一个片段之后，可以在主系统存储器中对片段或片段执行操作。