公开(公告)号：US20180089267A1

公开(公告)日：2018-03-29

申请号：US15275040

申请日：2016-09-23

Applicant: SAP SE

Inventor： Youssef Hatem ,  Stephan Kessler ,  Axel Christ ,  Christian Mathis

IPC: G06F17/30

CPC classification number: G06F16/24542 ,  G06F16/2455 ,  G06F16/2471 ,  G06F16/9535

Abstract: In one respect, there is provided a distributed database system. The distributed database system can include a plurality of hosts configured to store and/or manage data, a first query processing engine comprising a master node and an executor node, and a second query processing engine. The master node can be implemented on one or more programmable processors and configured to perform operations. The operations can include: generating an execution plan for a query on data that is stored at and/or managed by one or more of the plurality of hosts; determining to push down, to the second query processing engine, at least one data processing operations in the execution plan; and dispatching, to the executor node, at least a portion of the execution plan, the portion of the execution plan including the at least one data processing operation that is pushed down to the second query processing engine.