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:
Jun. 30, 2026
Filed:
Sep. 29, 2024
Huawei Technologies Co., Ltd., Shenzhen, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
A cardinality estimation method and an apparatus are provided. The method includes: selecting a target model type from a plurality of model types based on a target distribution feature and mapping relationship information, where the mapping relationship information includes a mapping relationship between the plurality of model types and a predicted distribution feature, and the target distribution feature is extracted from sample data collected based on an analysis instruction; and obtaining, based on the target model type, a target model corresponding to the target model type, where the target model is used to perform cardinality estimation on a query instruction of a database.