Using Statistical Sampling for Query Optimization in Heterogeneous Library Information Systems.
Gregory D. SpeegleMichael J. DonahooPublished in: ACM Conference on Computer Science (1993)
Keyphrases
- query optimization
- information systems
- cost model
- database systems
- query processing
- cost estimation
- cardinality estimation
- multidatabase systems
- data placement
- query scheduling
- xml data
- query execution
- continuous queries
- semantic query optimization
- efficient execution
- join queries
- query optimizers
- approximate query answering
- recursive queries
- query execution plans
- data mining
- selectivity estimation
- complex queries
- databases
- query optimizer
- management system