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DB2 with BLU Acceleration: So Much More than Just a Column Store

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Figure

Figure 1: Page of CountryCode with two Regions.
Figure 2 depicts the DB2 BLU page format. There is a small page header. Next come the page compression  dic-tionaries if applicable
Figure 5: A TSNList for 8 rows (TSNs 100 .. 107) where tuples 102, 104, and 105 have been filtered out due to predicates; and a Vector, whose size (5) matches the number of valid TSNs in the TSNList.
Figure 6: Leaf evaluation on a 2-region page. mult i are precomputed multipliers and r j , s k are result bits.
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