Patents by Inventor Xiazhen Wang

Xiazhen Wang 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).

  • High performance predicate push-down for non-matching predicate operands
    Patent number: 7299225
    Abstract: A method, apparatus, and article of manufacture for improving the performance of evaluating predicates with non-matching operands by aggressively casting the input value to the data type of the target column before the data of the target column is accessed.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: November 20, 2007
    Assignee: International Business Machines Corporation
    Inventors: Brian T. Tran, Hsiuying Y. Cheng, Shuanglin Guo, Patrick M. Malone, Thomas A. Beavin, Xiazhen Wang, Xun Li
  • High performance predicate push-down for non-matching predicate operands
    Publication number: 20040103082
    Abstract: A method, apparatus, and article of manufacture for improving the performance of evaluating predicates with non-matching operands by aggressively casting the input value to the data type of the target column before the data of the target column is accessed.
    Type: Application
    Filed: November 26, 2002
    Publication date: May 27, 2004
    Inventors: Brian T. Tran, Hsiuying Y. Cheng, Shuanglin Guo, Patrick M. Malone, Thomas A. Beavin, Xiazhen Wang, Xun Li