Patents by Inventor Xiaohao Liang

Xiaohao Liang 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).

  • Log management method, server, and database system
    Patent number: 11748215
    Abstract: In a log management method performed by a server, the server receives a transaction and generates a command log of the transaction. When detecting the transaction is a multi-partition transaction or a non-deterministic transaction, the server generates a data log of the transaction. When the server is faulty, the server recovers data according to the command log or the data log.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: September 5, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xiaohao Liang, Huimin Zhang, Weisong Wang, Tieying Wang
  • Log Management Method, Server, and Database System
    Publication number: 20200293412
    Abstract: In a log management method performed by a server, the server receives a transaction and generates a command log of the transaction. When detecting the transaction is a multi-partition transaction or a non-deterministic transaction, the server generates a data log of the transaction. When the server is faulty, the server recovers data according to the command log or the data log.
    Type: Application
    Filed: June 4, 2020
    Publication date: September 17, 2020
    Inventors: Xiaohao Liang, Huimin Zhang, Weisong Wang, Tieying Wang
  • Index table update method, and device
    Patent number: 10642817
    Abstract: An index table update method, and a device are presented. The method includes adjusting an index density of a second index table in a memory when determining that storage space occupied by the second index table reaches an upper limit or a lower limit of a preset range, where the index density of the second index table is a ratio of a quantity of index records included in the second index table to a quantity of index records included in a first index table in an external storage; and selecting an index record from the first index table according to the adjusted index density, and updating the second index table using the selected index record. In this way, the second index table is dynamically adjusted according to a storage space occupation status of the memory, and system performance and retrieval efficiency are further ensured.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: May 5, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xiaohao Liang, Xiaoyong Lin, Tieying Wang
  • Index Table Update Method, and Device
    Publication number: 20180018361
    Abstract: An index table update method, and a device are presented. The method includes adjusting an index density of a second index table in a memory when determining that storage space occupied by the second index table reaches an upper limit or a lower limit of a preset range, where the index density of the second index table is a ratio of a quantity of index records included in the second index table to a quantity of index records included in a first index table in an external storage; and selecting an index record from the first index table according to the adjusted index density, and updating the second index table using the selected index record. In this way, the second index table is dynamically adjusted according to a storage space occupation status of the memory, and system performance and retrieval efficiency are further ensured.
    Type: Application
    Filed: September 26, 2017
    Publication date: January 18, 2018
    Inventors: Xiaohao Liang, Xiaoyong Lin, Tieying Wang