Patents by Inventor Santosh Dattu PENDAP

Santosh Dattu PENDAP 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).

  • Testing efficiency and stability of a database query engine
    Patent number: 8892544
    Abstract: Systems, methods and computer program products for testing the stability and efficiency of a database query engine are described herein. In an embodiment, all possible query execution plans considered by a query optimizer are retained in the form of abstract plans (APs). Each AP is then subsequently supplied with a query to test for stack traces and incorrect results that may occur during the execution of the query. An embodiment includes determining an optimizer efficiency index (OEI) by comparing each AP with a query execution plan chosen by the query optimizer and classifying the APs into various performance buckets based on the degree of improvement or degradation in performance with respect to the query execution plan chosen by the query optimizer. In another embodiment to determine the optimizer efficiency index, APs are ranked based on estimated cost and classified into a plurality of categories based on query optimizer estimates and actual execution behavior.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: November 18, 2014
    Assignee: Sybase, Inc.
    Inventors: Santosh Dattu Pendap, Sudipto Rai Chowdhuri
  • Extensible executable modeling
    Patent number: 8869122
    Abstract: Methods, systems, and computer program products for generating executable computer code in an extensible format are provided. A computer-implemented method may include receiving computer source code for compilation and compiling the source code, to generate executable computer code in an extensible format that includes instructions for execution by a computer system configured to process the instructions in the extensible format.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: October 21, 2014
    Assignee: Sybase, Inc.
    Inventors: Santosh Dattu Pendap, Sergey Babkin, Palaniappan Gandhi, Jr., Mohyuddin Rehmattullah, Manbeen P. Kohli, Gregory L. Shtilman, Andrzej Kucharczyk, Joseph Michael Skrzypczak, Kyle James Dohring, Vincent Roy Garofalo, Raphael Hercules Sutton
  • EXTENSIBLE EXECUTABLE MODELING
    Publication number: 20140068576
    Abstract: Methods, systems, and computer program products for generating executable computer code in an extensible format are provided. A computer-implemented method may include receiving computer source code for compilation and compiling the source code, to generate executable computer code in an extensible format that includes instructions for execution by a computer system configured to process the instructions in the extensible format.
    Type: Application
    Filed: August 30, 2012
    Publication date: March 6, 2014
    Applicant: Sybase, Inc.
    Inventors: Santosh Dattu Pendap, Sergey Babkin, Palaniappan Gandhi, JR., Mohyuddin Rehmattullah, Manbeen P. Kohli, Gregory L. Shtilman, Andrzej Kucharczyk, Joseph Michael Skrzypczak, Kyle James Dohring, Vincent Roy Garofalo, Raphael Hercules Sutton
  • Testing Efficiency and Stability of a Database Query Engine
    Publication number: 20100257154
    Abstract: Systems, methods and computer program products for testing the stability and efficiency of a database query engine are described herein. In an embodiment, all possible query execution plans considered by a query optimizer are retained in the form of abstract plans (APs). Each AP is then subsequently supplied with a query to test for stack traces and incorrect results that may occur during the execution of the query. An embodiment includes determining an optimizer efficiency index (OEI) by comparing each AP with a query execution plan chosen by the query optimizer and classifying the APs into various performance buckets based on the degree of improvement or degradation in performance with respect to the query execution plan chosen by the query optimizer. In another embodiment to determine the optimizer efficiency index, APs are ranked based on estimated cost and classified into a plurality of categories based on query optimizer estimates and actual execution behavior.
    Type: Application
    Filed: April 1, 2009
    Publication date: October 7, 2010
    Applicant: Sybase, Inc.
    Inventors: Santosh Dattu PENDAP, Sudipto Rai Chowdhuri