Joining method and associated apparatus
By generating hash graphs and optimizing database join instructions using execution trees, the problem of low efficiency in data table joins was solved, thus improving the efficiency and performance of database joins.
CN112835888BActive Publication Date: 2026-07-14HUAWEI CLOUD COMPUTING TECHNOLOGIES CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUAWEI CLOUD COMPUTING TECHNOLOGIES CO LTD
- Filing Date
- 2019-11-25
- Publication Date
- 2026-07-14
AI Technical Summary
Technical Problem
The existing database suffers from inefficient joins between tables, which urgently need to be improved.
Method used
By generating a hash map and execution tree for the data table, the execution order of join instructions is optimized, the functional complexity of the running instructions is reduced, and the join efficiency is improved.
Benefits of technology
It effectively improves the efficiency of data table joins, reduces the execution time of running instructions, and enhances database performance.
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Smart Images
Figure CN112835888B_ABST
Abstract
The application provides a joining method and related equipment. The method comprises: receiving a preliminary instruction input by a user; performing parameter legality checking on the preliminary instruction to a joining instruction, and generating a hash graph of a first data table, the joining instruction being used to indicate joining at least the first data table and a second data table; in the case that the parameter legality checking is qualified, receiving a running instruction input by the user; and executing the running instruction to run the joining instruction, so as to join at least the first data table and the second data table according to the hash graph of the first data table.
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