Answering Conjunctive Queries with Inequalities.
Paraschos KoutrisTova MiloSudeepa RoyDan SuciuPublished in: Theory Comput. Syst. (2017)
Keyphrases
- conjunctive queries
- query answering
- data exchange
- data complexity
- integrity constraints
- answering queries
- data integration
- query evaluation
- query rewriting
- probabilistic databases
- np complete
- query containment
- incomplete information
- query language
- decision procedures
- datalog programs
- regular path queries
- hypertree decomposition
- boolean expressions
- bounded treewidth
- data sets
- conjunctive query containment
- conjunctive regular path queries
- conp complete
- schema mappings
- special case