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    Nested Queries and Quantifiers in an Ordered Context

    15 years 8 days ago
    Nested Queries and Quantifiers in an Ordered Context
    Download  pi3.informatik.uni-mannheim.de
    We present algebraic equivalences that allow to unnest nested algebraic expressions for order-preserving algebraic operators. We illustrate how these equivalences can be applied successfully to unnest nested queries given in the XQuery language. Measurements illustrate the performance gains possible by unnesting.
    Norman May, Sven Helmer, Guido Moerkotte
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    Added 01 Nov 2009
    Updated 01 Nov 2009
    Type Conference
    Year 2004
    Where ICDE
    Authors Norman May, Sven Helmer, Guido Moerkotte
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