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Database systems are often confronted with queries that join many tables but ultimately only output comparatively small aggregate information. Despite all advances in query optimisation, the explosion of intermediate results as opposed to a much smal
Externí odkaz:
http://arxiv.org/abs/2406.17076
Autor:
Gottlob, Georg, Lanzinger, Matthias, Longo, Davide Mario, Okulmus, Cem, Pichler, Reinhard, Selzer, Alexander
Join queries involving many relations pose a severe challenge to today's query optimisation techniques. To some extent, this is due to the fact that these techniques do not pay sufficient attention to structural properties of the query. In stark cont
Externí odkaz:
http://arxiv.org/abs/2303.02723
Skyline queries are frequently used in data analytics and multi-criteria decision support applications to filter relevant information from big amounts of data. Apache Spark is a popular framework for processing big, distributed data. The framework ev
Externí odkaz:
http://arxiv.org/abs/2210.03718
Autor:
Gottlob, Georg, Lanzinger, Matthias, Longo, Davide Mario, Okulmus, Cem, Pichler, Reinhard, Selzer, Alexander
Join queries involving many relations pose a severe challenge to today's query optimisation techniques. To some extent, this is due to the fact that these techniques do not pay sufficient attention to structural properties of the query. In stark cont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______264::075040336f268461e156486aecd129e0
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-211822
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-211822
Autor:
Selzer, Alexander
Die Berechnung der Ergebnisse von Join-Queries ist eine der zentralen Herausforderungen in jedem Datenbanksystem und hat direkte Auswirkungen auf die Geschwindigkeit sowie den Ressourcenverbrauch. Das Problem, SQL-Queries zu beantworten, ist äquival
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a15ec5d6a3c757892622348f3253247b
Autor:
Selzer, Alexander
The Data Management Plan for aMasters Thesis investigating query optimization
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2907e432a93a4859a3cdc94648e468e4