Query Containment for Data Integration Systems.
Todd D. MillsteinAlon Y. LevyMarc T. FriedmanPublished in: PODS (2000)
Keyphrases
- data integration systems
- query containment
- query answering
- regular path queries
- query rewriting
- conjunctive queries
- data exchange
- data integration
- integrity constraints
- data complexity
- incomplete information
- regular expressions
- query optimization
- answering queries
- decision procedures
- transitive closure
- query evaluation
- spatial databases
- spatial data
- query processing
- special case
- query language
- tree patterns
- graph databases
- databases
- query execution
- schema mappings
- computational complexity