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Which queries are faster?

In their research, Stonebrake et al. (C-Store: A Column-Oriented DBM) directly compared the speed of running queries on a column and row data store table containing shipping data. Both tables held the same data.

They tested the speed of seven different analytical queries (Q1-Q7), as shown below in the table. The speed is measured in seconds.

Query Table 1 speed seconds Table 2 speed seconds
Q1 6.80 2.24
Q2 1.09 0.83
Q3 93.26 29.54
Q4 722.9 22.23
Q5 116.56 0.93
Q6 652.9 32.83
Q7 265.8 33.24

Using this information above, select the false statement.

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Data Warehousing Concepts

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