QUERY PROCESSING IN DATA ANALYSIS
In implementations of the subject matter described herein, a solution for query processing is provided. In this solution, data subsets are pre-stored for example in a fast access storage device for data analysis, each including data entries corresponding to one or more dimensions. If two or more dat...
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| Format | Patent |
|---|---|
| Language | English |
| Published |
18.10.2017
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| Online Access | Get full text |
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| Abstract | In implementations of the subject matter described herein, a solution for query processing is provided. In this solution, data subsets are pre-stored for example in a fast access storage device for data analysis, each including data entries corresponding to one or more dimensions. If two or more data subsets are needed to cover target dimensions corresponding to query items in a received query, instead of turning to analyze a source data set that is not stored, the query is decomposed into subqueries. By means of the decomposing, the target dimension(s) corresponding to the query item(s) in each subquery can be covered by a single data subset. The data subset is analyzed for each subquery and a query result for the query is determined based on analysis results of the subqueries. In such way, the query result for the query can obtained in a fast manner from the available data subsets. |
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| AbstractList | In implementations of the subject matter described herein, a solution for query processing is provided. In this solution, data subsets are pre-stored for example in a fast access storage device for data analysis, each including data entries corresponding to one or more dimensions. If two or more data subsets are needed to cover target dimensions corresponding to query items in a received query, instead of turning to analyze a source data set that is not stored, the query is decomposed into subqueries. By means of the decomposing, the target dimension(s) corresponding to the query item(s) in each subquery can be covered by a single data subset. The data subset is analyzed for each subquery and a query result for the query is determined based on analysis results of the subqueries. In such way, the query result for the query can obtained in a fast manner from the available data subsets. |
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| Snippet | In implementations of the subject matter described herein, a solution for query processing is provided. In this solution, data subsets are pre-stored for... |
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| Title | QUERY PROCESSING IN DATA ANALYSIS |
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