2217 search results - page 227 / 444 » Rank-aware Query Optimization |
182
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CIKM
2008
Springer
15 years 8 months ago
2008
Springer
We present in this paper an approach for XQuery optimization that exploits minimization opportunities raised in composition-style nesting of queries. More precisely, we consider t...
169
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BDA
2007
15 years 8 months ago
2007
We present Pattern-by-Example (PBE), a graphical language that allows users with little or no knowledge of pattern-matching and functional programming to define complex and optim...
167
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CIDR
2007
15 years 8 months ago
2007
While there are known performance trade-offs between database page buffer pool and query execution memory allocation policies, little has been written on the impact of query compi...
130
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SIGMOD
1997
ACM
15 years 10 months ago
1997
ACM
In this paper, we study a simple SQL extension that enables query writers to explicitly limit the cardinality of a query result. We examine its impact on the query optimization an...
140
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CORR
2008
Springer
15 years 6 months ago
2008
Springer
A data structure, called a biased range tree, is presented that preprocesses a set S of n points in R2 and a query distribution D for 2-sided orthogonal range counting queries. The...