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  • This paper considers schemaless XML data stored in a column-oriented storage, particularly in C-store. A two-level model of C-store based on XML-enabled relational databases is supposed. The axes of XPath language in this environment have been studied in [3]. A low level memory system enables the estimation of the number of two abstract operations providing an interface to an external memory. The algorithms developed are mostly of logarithmic complexity in n, where n is the number of nodes of XML tree associated with an XML document. Here we extend the approach to the XPath fragment using only child and descendant axes and estimate the complexity of evaluating its queries.
  • This paper considers schemaless XML data stored in a column-oriented storage, particularly in C-store. A two-level model of C-store based on XML-enabled relational databases is supposed. The axes of XPath language in this environment have been studied in [3]. A low level memory system enables the estimation of the number of two abstract operations providing an interface to an external memory. The algorithms developed are mostly of logarithmic complexity in n, where n is the number of nodes of XML tree associated with an XML document. Here we extend the approach to the XPath fragment using only child and descendant axes and estimate the complexity of evaluating its queries. (en)
Title
  • XPath Fragments on XML in Columns
  • XPath Fragments on XML in Columns (en)
skos:prefLabel
  • XPath Fragments on XML in Columns
  • XPath Fragments on XML in Columns (en)
skos:notation
  • RIV/00216208:11320/12:10125467!RIV13-GA0-11320___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GAP202/10/0573), P(GAP202/10/0761)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 181173
http://linked.open...ai/riv/idVysledku
  • RIV/00216208:11320/12:10125467
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • C-store; column stores; relational database; XPath; XML (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [5E3854456AB7]
http://linked.open...v/mistoKonaniAkce
  • Bali, Indonesia
http://linked.open...i/riv/mistoVydani
  • USA
http://linked.open...i/riv/nazevZdroje
  • iiWAS2012 The 13th International Conference on Information Integration and Web-based Applications & Services
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Pokorný, Jaroslav
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
number of pages
http://purl.org/ne...btex#hasPublisher
  • ACM
https://schema.org/isbn
  • 978-1-4503-1306-3
http://localhost/t...ganizacniJednotka
  • 11320
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