Patent · US Active

Techniques for updating join indexes

US8990186B2 · kind B2 · utility

2Cited by

9References

20Claims

0Family size

Assignee

Teradata US, Inc. · US

Inventors

Xiaobin Ma · Fremont, US
Grace Kwan-On Au · Rancho Palos Verdes, US
Lu Ma · Basingstoke, GB

Key dates

Filing date	Dec 28, 2011
Grant date	Mar 24, 2015
Priority date	—
Expiry date	Apr 6, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06F16/2456
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Techniques for updating join indexes are provided. A determination is made to update date criteria in a join index query statement. The join index is parsed for current date and current time criteria. The join index is revised based on the location of the current date and current time criteria as they appear in the original join index. The revisions include new criteria that minimize the effort in maintaining and using the join index.

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