Cluster database system and data query processing method thereof
A processing method and data query technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of wasting more time, query speed reduction, user response speed reduction, etc., to reduce the overall execution time, The effect of reducing response time
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[0035] The present invention will be further described in detail below in conjunction with the drawings.
[0036] figure 2 It is a schematic structural diagram of a cluster database system according to an embodiment of the present invention. Such as figure 2 As shown, the cluster database system includes a query server 10 and multiple database systems 20.
[0037] After receiving the query task, the query server 10 parses the query task into at least one sub-query task. In an alternative embodiment, the number of sub-query tasks may be 1. Then, the query server 10 sends the at least one sub-query task to multiple database systems 20 respectively.
[0038] After receiving the sub-query task, multiple database systems 20 may execute the sub-query task in parallel. Among them, each database system can be assigned one or more sub-query tasks. In addition, for a database system in the process of executing a subquery task, it may sometimes need to use the query results of the previou...
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