An Adaptive Query Optimization in a Hierarchical Mediator System.
Nam Hun ParkKil Hong JooPublished in: FGIT-FGCN (1) (2011)
Keyphrases
- query optimization
- database systems
- cost model
- cardinality estimation
- multidatabase systems
- query processing
- query execution plans
- query execution
- cost estimation
- semantic query optimization
- query optimizer
- xml data
- query optimizers
- data placement
- efficient query processing
- query scheduling
- continuous queries
- data model
- execution plan
- sparql queries
- semi structured
- data sources
- join queries
- database management systems
- approximate query answering
- query execution plan