Patents by Inventor Hossein Ahmandi

Hossein Ahmandi 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).

  • Inexact timestamp range matching join for time series data (AS OF JOIN)
    Patent number: 11921716
    Abstract: A method includes parsing a query to determine a plurality of data processing operations associated with the query and including an AS OF JOIN operation between first time series data in a first table and second time series data in a second table. A query plan of the query is generated. The query plan includes a plurality of nodes corresponding to the plurality of data processing operations. At least one of the plurality of nodes corresponding to the AS OF JOIN operation is modified to generate a modified query plan of the query. The modifying is based on applying a UNION operation on at least a first portion of column data in the first table and the second table to obtain a combined table. Execution of the query by at least one of a plurality of computing nodes is scheduled based on the modified query plan.
    Type: Grant
    Filed: August 21, 2023
    Date of Patent: March 5, 2024
    Assignee: Snowflake Inc.
    Inventors: Hossein Ahmandi, Jayanta Das, Joshua Klahr, Boyung Lee, Wenye Li, Abdul Q. Munir, Yi Pan