Approximately Counting Answers to Conjunctive Queries with Disequalities and Negations.
Jacob FockeLeslie Ann GoldbergMarc RothStanislav ZivnýPublished in: PODS (2022)
Keyphrases
- conjunctive queries
- queries using views
- query answering
- query evaluation
- integrity constraints
- np complete
- query language
- query answers
- data complexity
- data exchange
- special case
- probabilistic databases
- decision procedures
- query rewriting
- bounded treewidth
- query containment
- boolean expressions
- containment of conjunctive queries
- conjunctive query containment
- unions of conjunctive queries
- transitive closure
- deductive databases
- data integration
- complexity of query answering
- conjunctive regular path queries
- database systems
- consistent answers
- regular path queries
- relational queries
- natural language