Distributed databases principles and systems
Distributed databases principles and systems
ACM Computing Surveys (CSUR)
Query Processing in a Fragmented Relational Distributed System: Mermaid
IEEE Transactions on Software Engineering - Annals of discrete mathematics, 24
An Optimal Algorithm for Processing Distributed Star Queries
IEEE Transactions on Software Engineering
Optimization of join operations in horizontally partitioned database systems
ACM Transactions on Database Systems (TODS)
Taxonomy and formal properties of distributed joins
Information Systems
Optimizing joins between two partitioned relations in distributed databases
Journal of Parallel and Distributed Computing
Query processing in a system for distributed databases (SDD-1)
ACM Transactions on Database Systems (TODS)
Using Semi-Joins to Solve Relational Queries
Journal of the ACM (JACM)
Ethernet: distributed packet switching for local computer networks
Communications of the ACM
A relational model of data for large shared data banks
Communications of the ACM
Distributed query processing in a relational data base system
SIGMOD '78 Proceedings of the 1978 ACM SIGMOD international conference on management of data
Principles of Database Systems
Principles of Database Systems
Computer Architecture and Parallel Processing
Computer Architecture and Parallel Processing
Computers and Intractability: A Guide to the Theory of NP-Completeness
Computers and Intractability: A Guide to the Theory of NP-Completeness
Fundamentals of Computer Alori
Fundamentals of Computer Alori
Evaluation of the size of a query expressed in relational algebra
SIGMOD '81 Proceedings of the 1981 ACM SIGMOD international conference on Management of data
Join processing in relational databases
ACM Computing Surveys (CSUR)
Adaptive Algorithms for Join Processing in Distributed Database Systems
Distributed and Parallel Databases
On the Complexity of Distributed Query Optimization
IEEE Transactions on Knowledge and Data Engineering
Criss-Cross Hash Joins: Design and Analysis
IEEE Transactions on Knowledge and Data Engineering
Performance Issues in Distributed Query Processing
IEEE Transactions on Parallel and Distributed Systems
Information Sciences: an International Journal
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The problem of optimizing joins between two fragmented relations on a broadcast local network is analyzed. Data redundancy is considered. Semantic information associated with fragments are used to eliminate necessary processing. More than one physical copies of a fragment is allowed to be used in a strategy to achieve more parallelism. Join-analysis graphs are introduced to represent joins on two fragmented relations. The problem of optimizing a join is mapped into an equivalent problem of finding a minimum-weight vertex cover for the corresponding join-analysis graph. This problem is proved to be NP-hard. A four-phase approach for processing joins is proposed.