Diversity of Answers to Conjunctive Queries.
Timo Camillo MerklReinhard PichlerSebastian SkritekPublished in: ICDT (2023)
Keyphrases
- conjunctive queries
- queries using views
- query answering
- query evaluation
- integrity constraints
- query answers
- np complete
- query language
- data complexity
- special case
- data exchange
- query rewriting
- probabilistic databases
- query containment
- decision procedures
- datalog programs
- databases
- expressive power
- relational queries
- bounded treewidth
- consistent query answering
- containment of conjunctive queries
- conjunctive query containment
- transitive closure
- tree patterns
- schema mappings
- data integration
- database systems
- data mining
- boolean expressions
- data sets
- answering queries using views