Query Processing and Optimization
Query Processing and Optimization
Query Processing and Optimization
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Apply Projections Early<br />
π Name<br />
n CU.CustomerID = CH.CustomerID<br />
n F.FilmId = CH.FilmID<br />
σ Street = ‘Elm’<br />
π FilmID π FilmID, CustomerID<br />
π Name, CustomerID<br />
σ Title = ‘Terminator’<br />
F<br />
CH<br />
CU<br />
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