Direct Access for Answers to Conjunctive Queries with Aggregation.
Idan EldarNofar CarmeliBenny KimelfeldPublished in: CoRR (2023)
Keyphrases
- conjunctive queries
- queries using views
- query answering
- integrity constraints
- data complexity
- query evaluation
- np complete
- query language
- data exchange
- special case
- query answers
- query containment
- probabilistic databases
- query rewriting
- decision procedures
- boolean expressions
- containment of conjunctive queries
- regular path queries
- unions of conjunctive queries
- schema mappings
- databases
- database
- conjunctive regular path queries
- relational queries
- dl lite
- transitive closure
- satisfiability problem
- data mining
- data sets