Patents by Inventor Suresh Kumar Jami

Suresh Kumar Jami 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).

  • Skew detection and handling in a parallel processing relational database system
    Patent number: 10678794
    Abstract: A method for detecting and handling skew and spillover in in-memory hash join operations. To improve the detection of skew and spillover in parallel processing systems, a Poisson distribution of unique hash values to Units of Parallelism (UoPs) is employed to determine the number of rows per UoP and in turn, the potential of spillover at a UoP. Hash join plan options can be selected or adjusted to reduce the likelihood of spillover.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: June 9, 2020
    Assignee: Teradata US, Inc.
    Inventors: Bhashyam Ramesh, Suresh Kumar Jami
  • SKEW DETECTION AND HANDLING IN A PARALLEL PROCESSING RELATIONAL DATABASE SYSTEM
    Publication number: 20180121563
    Abstract: A method for detecting and handling skew and spillover in in-memory hash join operations. To improve the detection of skew and spillover in parallel processing systems, a Poisson distribution of unique hash values to Units of Parallelism (UoPs) is employed to determine the number of rows per UoP and in turn, the potential of spillover at a UoP. Hash join plan options can be selected or adjusted to reduce the likelihood of spillover.
    Type: Application
    Filed: December 29, 2017
    Publication date: May 3, 2018
    Applicant: Teradata US, Inc.
    Inventors: Bhashyam Ramesh, Suresh Kumar Jami