Distributed OLAP ad-hoc query method based on Spark and Hive
A query method and distributed technology, applied in the field of distributed OLAP ad hoc query, can solve problems such as insatiable performance and soaring
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[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0017] like figure 1 As shown, this patent includes seven steps:
[0018] 1, figure 1 It is the execution process of the entire OLAP engine, starting from OLAP Query, which can trigger OLAP Query in any way, and is the first stage of engine execution.
[0019] 2. After the Query obtains the Query Keyword, the Validator (verification detection) of the keyword will be performed to verify the correctness and security of the keyword to avoid malicious Query.
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