System and method for adaptive query plan selection in distributed relational database management system based on software-defined network

摘要

Systems and methods are disclosed for operating a software-defined network (SDN) by slicing the SDN into differentiated queues according to different priorities to prioritizes the queries based on the user's request; reserving necessary bandwidth for specific queries to ensure specific performance levels based on the user's request; providing information to a query plan executor; and managing performance of analytical queries in distributed relational databases.