Optimization of bound disjunctive queries with constraints.
Gianluigi GrecoSergio GrecoIrina TrubitsynaEster ZumpanoPublished in: Theory Pract. Log. Program. (2005)
Keyphrases
- constrained optimization
- datalog queries
- query language
- query processing
- upper bound
- lower bound
- query evaluation
- optimization algorithm
- database
- constraint satisfaction
- complex queries
- optimization strategies
- optimization method
- data sources
- linear constraints
- database queries
- multi objective
- penalty function
- efficient processing
- global constraints
- worst case
- range queries
- expressive power
- query logs
- error bounds
- global optimization
- constraint programming
- aggregate queries
- decision variables
- answering queries
- optimization criteria
- null values
- user queries