Parallel-Correctness and Transferability for Conjunctive Queries.
Tom J. AmelootGaetano GeckBas KetsmanFrank NevenThomas SchwentickPublished in: CoRR (2014)
Keyphrases
- conjunctive queries
- query answering
- integrity constraints
- query evaluation
- data complexity
- np complete
- query language
- probabilistic databases
- special case
- data exchange
- query containment
- query rewriting
- decision procedures
- dl lite
- parallel processing
- unions of conjunctive queries
- regular path queries
- boolean expressions
- containment of conjunctive queries
- bounded treewidth
- data management
- conp complete
- deductive databases
- schema mappings
- relational queries
- functional dependencies
- xml data
- computational complexity