The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 2025
Filed:
May. 09, 2023
Beijing Oceanbase Technology Co., Ltd., Beijing, CN;
Beijing Oceanbase Technology Co., Ltd., Beijing, CN;
Abstract
A plan execution method, apparatus, and system for a distributed database are provided. The plan execution method is performed by a first execution thread on a plan execution node. Feedback data returned by a child logical subplan of a current logical subplan is received in parallel with at least one second execution thread scheduled to execute the current logical subplan. Whether the current logical subplan includes an execution operator related to a row number generation operation is determined. In response to that the current logical subplan includes the execution operator related to a row number generation operation, the received data are cached, and a row number start value obtaining request is sent to the scheduling node. Data row numbers are generated for the cached data based on a received row number start value.