Patents by Inventor Sriram Kolinjivadi Padmanabhan

Sriram Kolinjivadi Padmanabhan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Query processing method of name-value pairs in relational databases
    Patent number: 6691102
    Abstract: Electronic marketplaces typically apply catalog schema in the format of name-value pairs to store product attribute names and values to achieve a very high degree of flexibility. This vertical schema approach prevents traditional relational database management systems from accurately estimating constraint selectivity and generating efficient query plans. In this invention, methods and systems are disclosed for building and maintaining external histograms and a query planner uses these external histograms to assist query planning in relational databases.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: February 10, 2004
    Assignee: International Business Machines Corporation
    Inventors: Yuan-Chi Chang, Sriram Kolinjivadi Padmanabhan, Min Wang
  • Query processing method of name-value pairs in relational databases
    Publication number: 20030187830
    Abstract: Electronic marketplaces typically apply catalog schema in the format of name-value pairs to store product attribute names and values to achieve a very high degree of flexibility. This vertical schema approach prevents traditional relational database management systems from accurately estimating constraint selectivity and generating efficient query plans. In this invention, methods and systems are disclosed for building and maintaining external histograms and a query planner uses these external histograms to assist query planning in relational databases.
    Type: Application
    Filed: March 26, 2002
    Publication date: October 2, 2003
    Inventors: Yuan-Chi Chang, Sriram Kolinjivadi Padmanabhan, Min Wang