Patents by Inventor Peter A. Zabback

Peter A. Zabback 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).

  • Efficient logical merging over physically divergent streams
    Patent number: 9965520
    Abstract: A logical merge module is described herein for producing an output stream which is logically compatible with two or more physically divergent input streams. Representative applications of the logical merge module are also set forth herein.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: May 8, 2018
    Assignee: Microsoft Corporation
    Inventors: Badrish Chandramouli, David E. Maier, Jonathan D. Goldstein, Peter A. Zabback
  • Operator state checkpoint markers and rehydration
    Patent number: 8726076
    Abstract: A checkpoint marker can be received at a first operator. The first operator can process the checkpoint marker by sending the checkpoint marker to a second operator and sending state checkpoint information representing a state of the first operator to a checkpoint writer. The checkpoint information can be used to rehydrate the state of one or more operators. For example, after a system failure, system shutdown, etc., checkpoint information can be received from a reader unit at a checkpoint information input queue of the first operator. A state of the first operator can be rehydrated using the checkpoint information. Processing of information in a data input queue of the first operator can be suspended while the checkpoint information is used to rehydrate the state of the first operator. Other operators in a system with the first operator (e.g., the second operator) may be checkpointed and rehydrated in the same manner as the first operator.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: May 13, 2014
    Assignee: Microsoft Corporation
    Inventors: Jonathan D. Goldstein, Peter A. Zabback, Badrish Chandramouli
  • EFFICIENT LOGICAL MERGING OVER PHYSICALLY DIVERGENT STREAMS
    Publication number: 20120324453
    Abstract: A logical merge module is described herein for producing an output stream which is logically compatible with two or more physically divergent input streams. Representative applications of the logical merge module are also set forth herein.
    Type: Application
    Filed: June 17, 2011
    Publication date: December 20, 2012
    Applicant: Microsoft Corporation
    Inventors: Badrish Chandramouli, David E. Maier, Jonathan D. Goldstein, Peter A. Zabback
  • OPERATOR STATE CHECKPOINTS
    Publication number: 20120304003
    Abstract: A checkpoint marker can be received at a first operator. The first operator can process the checkpoint marker by sending the checkpoint marker to a second operator and sending state checkpoint information representing a state of the first operator to a checkpoint writer. The checkpoint information can be used to rehydrate the state of one or more operators. For example, after a system failure, system shutdown, etc., checkpoint information can be received from a reader unit at a checkpoint information input queue of the first operator. A state of the first operator can be rehydrated using the checkpoint information. Processing of information in a data input queue of the first operator can be suspended while the checkpoint information is used to rehydrate the state of the first operator. Other operators in a system with the first operator (e.g., the second operator) may be checkpointed and rehydrated in the same manner as the first operator.
    Type: Application
    Filed: May 27, 2011
    Publication date: November 29, 2012
    Applicant: Microsoft Corporation
    Inventors: Jonathan D. Goldstein, Peter A. Zabback, Badrish Chandramouli
  • Statistics adjustment to improve query execution plans
    Patent number: 7877374
    Abstract: A query execution system is provided. The system includes a monitor component that detects data value changes in a database. An adjustment component initiates an intermediate query in view of detected data value changes, the intermediate query employed to adjust statistics related to a query plan optimization.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: January 25, 2011
    Assignee: Microsoft Corporation
    Inventors: Peter A. Zabback, Ian Jose
  • STATISTICS ADJUSTMENT TO IMPROVE QUERY EXECUTION PLANS
    Publication number: 20080133458
    Abstract: A query execution system is provided. The system includes a monitor component that detects data value changes in a database. An adjustment component initiates an intermediate query in view of detected data value changes, the intermediate query employed to adjust statistics related to a query plan optimization.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 5, 2008
    Applicant: MICROSOFT CORPORATION
    Inventors: Peter A. Zabback, Ian Jose