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ICDE
2003
IEEE
161views Database» more  ICDE 2003»
16 years 4 months ago
Structural Join Order Selection for XML Query Optimization
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, ...
Yuqing Wu, Jignesh M. Patel, H. V. Jagadish
VLDB
1987
ACM
100views Database» more  VLDB 1987»
15 years 6 months ago
Optimization of Systems of Algebraic Equations for Evaluating Datalog Queries
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...
Stefano Ceri, Letizia Tanca
PVLDB
2008
100views more  PVLDB 2008»
15 years 2 months ago
Efficiently approximating query optimizer plan diagrams
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...
Atreyee Dey, Sourjya Bhaumik, Harish D., Jayant R....
VLDB
2009
ACM
124views Database» more  VLDB 2009»
16 years 3 months ago
Instance optimal query processing in spatial networks
Ke Deng, Xiaofang Zhou, Heng Tao Shen, Shazia W. S...
SIGMOD
2011
ACM
331views Database» more  SIGMOD 2011»
14 years 6 months ago
Query optimization techniques for partitioned tables
Table partitioning splits a table into smaller parts that can be accessed, stored, and maintained independent of one another. From their traditional use in improving query perform...
Herodotos Herodotou, Nedyalko Borisov, Shivnath Ba...