Parallel-Correctness and Transferability for Conjunctive Queries.
Tom J. AmelootGaetano GeckBas KetsmanFrank NevenThomas SchwentickPublished in: J. ACM (2017)
Keyphrases
- conjunctive queries
- query answering
- query evaluation
- integrity constraints
- data complexity
- query language
- np complete
- data exchange
- query rewriting
- query containment
- special case
- probabilistic databases
- decision procedures
- boolean expressions
- bounded treewidth
- parallel processing
- containment of conjunctive queries
- queries using views
- query processing
- datalog programs
- unions of conjunctive queries
- conp complete
- tuple generating dependencies
- expressive power
- computational complexity
- database systems
- databases
- database