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Improving Query Performance of Holistic Aggregate Queries for Real Time Data Exploration

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Figure

Figure 2.1: A screenshot of the Stairwalker prototype
Table 3.1 lists the results of the empirical verification with PostgreSQL. The results show that the exe-cution time measure is a good indication for overall query performance; as the dataset increases in sizewith a certain factor the execution time increas
Table 3.3: Results for empirical verification of performance measures with MonetDB
Figure 5.1: Results of the measurements with the basic algorithm and the 10MM PEGEL dataset
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