7 search results - page 2 / 2 » Exploiting Pseudo-Schedules to Guide Data Dependence Graph P... |
138
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SIGMOD
2010
ACM
15 years 8 months ago
2010
ACM
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...
141
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PVLDB
2008
15 years 2 months ago
2008
Many commercial RDBMSs employ cost-based query optimization exploiting dynamic programming (DP) to efficiently generate the optimal query execution plan. However, optimization tim...