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    SIGMOD
    2010
    ACM
    281views Database» more  SIGMOD 2010»
    Continuous sampling for online aggregation over multiple queries
    14 years 9 days ago
    Continuous sampling for online aggregation over multiple queries
    Download  www.comp.nus.edu.sg
    In this paper, we propose an online aggregation system called COSMOS (Continuous Sampling for Multiple queries in an Online aggregation System), to process multiple aggregate quer...
    Sai Wu, Beng Chin Ooi, Kian-Lee Tan
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    PVLDB
    2008
    126views more  PVLDB 2008»
    Parallelizing query optimization
    13 years 7 months ago
    Parallelizing query optimization
    Download  www-db.knu.ac.kr
    Many commercial RDBMSs employ cost-based query optimization exploiting dynamic programming (DP) to efficiently generate the optimal query execution plan. However, optimization tim...
    Wook-Shin Han, Wooseong Kwak, Jinsoo Lee, Guy M. L...
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