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    PODS
    2009
    ACM
    134views Database» more  PODS 2009»
    Equivalence of nested queries with mixed semantics
    14 years 5 months ago
    Equivalence of nested queries with mixed semantics
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    We consider the problem of deciding query equivalence for a conjunctive language in which queries output complex objects composed from a mixture of nested, unordered collection ty...
    David DeHaan
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    ICDE
    2005
    IEEE
    131views Database» more  ICDE 2005»
    On the Sequencing of Tree Structures for XML Indexing
    14 years 5 months ago
    On the Sequencing of Tree Structures for XML Indexing
    Download  magna.cs.ucla.edu
    Sequence-based XML indexing aims at avoiding expensive join operations in query processing. It transforms structured XML data into sequences so that a structured query can be answ...
    Haixun Wang, Xiaofeng Meng
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