公开(公告)号：US20180268030A1

公开(公告)日：2018-09-20

申请号：US15762586

申请日：2015-09-25

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Rui Liu ,  Qiming Chen ,  Jeff Lefevre ,  Malu G. Castellanos ,  Meichun Hsu

IPC: G06F17/30

CPC classification number: G06F16/24542 ,  G06F16/2255 ,  G06F16/2471 ,  G06F16/256 ,  G06F16/27

Abstract: A system includes a database client, and a distributed database comprising database nodes. The distributed database may receive a database query from the client, determine that the query comprises a range of hash values of a table partition stored by a node of the distributed database, and determine that the range of hash values is not stored by other nodes of the distributed database. Responsive to determining that the range of hash values of the query is stored by the node and not by the other nodes, the database may generate an optimized distributed execution plan that includes the node that stores the range of hash values and excludes the nodes that do not include the range of hash values.