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» On Parallel Execution of Multiple Pipelined Hash Joins
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VLDB
2005
ACM
93views Database» more  VLDB 2005»
13 years 10 months ago
Revisiting Pipelined Parallelism in Multi-Join Query Processing
Multi-join queries are the core of any integration service that integrates data from multiple distributed data sources. Due to the large number of data sources and possibly high v...
Bin Liu, Elke A. Rundensteiner
IPPS
2003
IEEE
13 years 10 months ago
Performance Modeling of the Grace Hash Join on Cluster Architectures
Aim of the paper is to develop a concise but comprehensive analytical model for the well-known Grace Hash Join algorithm on cost effective cluster architectures. This approach is ...
Erich Schikuta
EUROPAR
1999
Springer
13 years 9 months ago
On Disk Allocation of Intermediate Query Results in Parallel Database Systems
For complex queries in parallel database systems, substantial amounts of data must be redistributed between operators executed on different processing nodes. Frequently, such inter...
Holger Märtens
GIS
2007
ACM
13 years 8 months ago
Pipelined spatial join processing for quadtree-based indexes
Spatial join is an important yet costly operation in spatial databases. In order to speed up the execution of a spatial join, the input tables are often indexed based on their spa...
Walid G. Aref
VLDB
1994
ACM
153views Database» more  VLDB 1994»
13 years 8 months ago
Optimization Algorithms for Exploiting the Parallelism-Communication Tradeoff in Pipelined Parallelism
We address the problem of finding parallel plans for SQL queries using the two-phase approach of join ordering followed by parallelization. We focus on the parallelization phase a...
Waqar Hasan, Rajeev Motwani