Exadata Technical Overview - Oracle
Exadata Technical Overview - Oracle
Exadata Technical Overview - Oracle
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34<br />
Storage Index with Joins Example<br />
Dimension<br />
Name M<br />
Accord 1<br />
Camry 3<br />
Civic 5<br />
Prius 8<br />
Select count(*) from fact, dim<br />
where fact.m=dim.m and dim.name=‘Camry’<br />
Copyright © 2012, <strong>Oracle</strong> and/or its affiliates. All rights reserved.<br />
Bloom filter constructed<br />
with min/max for M<br />
Perform IO and<br />
apply bloom filter<br />
Skip IO<br />
Due to Storage Index<br />
Fact<br />
A M C D<br />
1<br />
3<br />
5<br />
5<br />
5<br />
5
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