Equivalences among aggregate queries with negation.
Sara CohenYehoshua SagivWerner NuttPublished in: ACM Trans. Comput. Log. (2005)
Keyphrases
- aggregate queries
- query processing
- data cube
- logic programs
- efficient computation
- probabilistic xml
- aggregation functions
- logic programming
- relational algebra
- approximate answers
- deductive databases
- fixpoint
- datalog programs
- probabilistic databases
- aggregate functions
- real world
- query answers
- index structure
- intelligent agents
- data management