A data query method and device
By sinking the computational logic in the logical plan tree down to the data source and leveraging the high computing power of the data source for data querying, the problems of transmission time between the data source and memory and limited memory computing power are solved, thus improving the efficiency of data querying.
CN117216125BActive Publication Date: 2026-04-21BEIJING GRIDSUM TECH CO LTD
1 Cites 0 Cited by
Patent Information
- Application Number
- CN202210620780.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-06-02
- Publication Date
- 2026-04-21
- Estimated Expiration
- 2042-06-02
AI Technical Summary
Technical Problem
In existing data query methods, data transfer between the data source and memory is time-consuming and memory computing power is limited, resulting in low data query efficiency.
Method used
The computational logic that can be executed by the data source in the logical plan tree is pushed down to the data source for execution, and the high computing power of the data source is used to perform data query operations.
Benefits of technology
This reduces the amount of data transfer between the data source and memory, as well as the computational burden on memory, thereby improving the processing speed and efficiency of data queries.
✦ Generated by Eureka AI based on patent content.
Abstract
This invention discloses a data query method and apparatus, relating to the field of computer technology, with the main objective of improving data query efficiency. The main technical solution includes: obtaining a logical plan tree for data querying, wherein the logical plan tree consists of at least one subtree, each subtree consists of at least one node, and each subtree has a corresponding data source; selecting a first node from the nodes of the logical plan tree, wherein the computational logic corresponding to the first node can be executed by the data source corresponding to its subtree; and providing the computational logic corresponding to the selected first node to the data source corresponding to its subtree, so that the corresponding data source can perform data query operations based on the computational logic.
Need to check novelty before this filing date? Find Prior Art