A data query model and method for mapreduce paradigm
A data query and paradigm technology, applied in the field of information technology processing, can solve problems such as unsatisfactory processing efficiency and other problems
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[0036] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.
[0037] A data query model oriented to the MapReduce paradigm, including Map and Reduce data processing processes defined explicitly using UDF; among them, the UDF process is called a subquery statement, and the other statements are called the main query statement , both of which are described according to the existing database query language format; in the subsequent query processing process, the Hadoop platform distributes the subquery statements to each cluster computer according to the MapReduce...
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