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ICDE
2005
IEEE
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ICDE 2005
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On the Optimal Ordering of Maps and Selections under Factorization
14 years 10 months ago
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pi3.informatik.uni-mannheim.de
The query optimizer of a database system is confronted with two aspects when handling user-defined functions (UDFs) in query predicates: the vast differences in evaluation costs b...
Thomas Neumann, Sven Helmer, Guido Moerkotte
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