METHOD OF MANAGING QUERY TREE FOR PROCESSING QUERY IN DATA STREAM SYSTEM

摘要

PURPOSE: the query tree system that a kind of management is used to handle the data flow in the query tree of inquiry provides configuration processing and inquires, to effectively manage query tree. ;CONSTITUTION: when new inquiry is added, query tree corresponds to new inquiry and is configured (420). New query tree compares existing query tree. Thereby determine whether that identical queue and same operator have (430). When identical queue and same operator exist, the new inquiry and with existing query tree, be overlapped identical queue with same operation device (440,450 ). ;The 2012 of copyright KIPO submissions