Patent · US Active

Using object awareness for a join pruning mechanism

US9542445B2 · kind B2 · utility

2Cited by

0References

18Claims

0Family size

Assignee

Hasso-Plattner Institut fuer Softwaresystemtechnik GmbH · DE

Inventors

Hasso Plattner · Schriesheim, DE
Stephan Mueller · Potsdam, DE
Jens Krueger · Heidenheim, DE
Juergen Mueller · Berlin, DE
Anisoara Nica · Waterloo, CA

Key dates

Filing date	May 30, 2014
Grant date	Jan 10, 2017
Priority date	—
Expiry date	Mar 10, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG06F16/283
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The invention relates to a computer system and a corresponding method and a corresponding computer-readable medium. The computer system is suitable for determining the result of a join. Based on the access pattern of an application, the computer system infers that a particular subjoin is empty. The computer system then excludes the inferred-empty subjoin when performing the join, performing a more efficient and faster database join operation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.