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VLDB
1991
ACM
139views Database» more  VLDB 1991»
14 years 2 months ago
Optimization of Multi-Way Join Queries for Parallel Execution
Hongjun Lu, Ming-Chien Shan, Kian-Lee Tan
PVLDB
2008
126views more  PVLDB 2008»
13 years 10 months ago
Parallelizing query optimization
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...
SIGMOD
2009
ACM
161views Database» more  SIGMOD 2009»
14 years 5 months ago
Dependency-aware reordering for parallelizing query optimization in multi-core CPUs
The state of the art commercial query optimizers employ cost-based optimization and exploit dynamic programming (DP) to find the optimal query execution plan (QEP) without evalua...
Wook-Shin Han, Jinsoo Lee
BTW
2003
Springer
170views Database» more  BTW 2003»
14 years 4 months ago
Executing Nested Queries
Abstract: Optimization of nested queries, in particular finding equivalent “flattened” queries for queries that employ the SQL sub-query construct, has been researched extensiv...
Goetz Graefe
SIGMOD
1995
ACM
80views Database» more  SIGMOD 1995»
14 years 2 months ago
Join Queries with External Text Sources: Execution and Optimization Techniques
Text is a pervasive information type, and many applications require querying over text sources in addition to structured data. This paper studies the problem of query processing i...
Surajit Chaudhuri, Umeshwar Dayal, Tak W. Yan