New Results for the Complexity of Resilience for Binary Conjunctive Queries with Self-Joins.
Cibele FreireWolfgang GatterbauerNeil ImmermanAlexandra MeliouPublished in: PODS (2020)
Keyphrases
- conjunctive queries
- query evaluation
- join queries
- conjunctive query containment
- data complexity
- query answering
- integrity constraints
- conp complete
- query language
- np complete
- conjunctive regular path queries
- bounded treewidth
- decision procedures
- query rewriting
- probabilistic databases
- data exchange
- query containment
- special case
- fixed parameter tractable
- query optimization
- data management
- lower complexity
- queries using views
- query complexity
- regular path queries
- pspace complete
- query processing
- dl lite
- decision problems
- join algorithms
- sql queries
- regular expressions
- database schema
- satisfiability problem
- hypertree decomposition
- xml data
- data model
- knowledge base