Determinacy of Real Conjunctive Queries. The Boolean Case.
Jaroslaw KwiecienJerzy MarcinkowskiPiotr Ostropolski-NalewajaPublished in: CoRR (2021)
Keyphrases
- conjunctive queries
- query answering
- integrity constraints
- query evaluation
- np complete
- boolean expressions
- data complexity
- query rewriting
- query language
- data exchange
- special case
- decision procedures
- probabilistic databases
- query containment
- relational queries
- real valued
- datalog programs
- unions of conjunctive queries
- boolean functions
- schema mappings
- np hard
- data model
- queries using views
- conjunctive query containment
- conjunctive regular path queries