3225 search results - page 118 / 645 » Query Optimization by Stored Queries |
231
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ICDE
2003
IEEE
16 years 4 months ago
2003
IEEE
Structural join operations are central to evaluating queries against XML data, and are typically responsible for consuming a lion's share of the query processing time. Thus, ...
123
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VLDB
1987
ACM
15 years 6 months ago
1987
ACM
A Datalog program can be translated into a system of fixpoint equations of relational algebra; this paper studies how such a system can be solved and optimized for a particular qu...
123
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PVLDB
2008
15 years 2 months ago
2008
Given a parametrized n-dimensional SQL query template and a choice of query optimizer, a plan diagram is a color-coded pictorial enumeration of the execution plan choices of the o...
138
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EDBT
2012
ACM
13 years 5 months ago
2012
ACM
We present an effective optimization framework for general SQLlike map-reduce queries, which is based on a novel query algebra and uses a small number of higher-order physical ope...