Early Separation of Filter and Refinement Steps in Spatial Query Optimization.
Ho-Hyun ParkChan-Gun LeeYong-Ju LeeChin-Wan ChungPublished in: DASFAA (1999)
Keyphrases
- query optimization
- refinement step
- query processing
- database systems
- cost model
- multidatabase systems
- refinement process
- cost estimation
- xml data
- cardinality estimation
- query scheduling
- query execution
- semantic query optimization
- selectivity estimation
- spatial data
- query optimizers
- query optimizer
- query execution plan
- data placement
- knn
- recursive queries
- query plan
- continuous queries
- complex queries
- spatial databases
- data analysis
- query execution plans
- join queries
- data mining
- approximate query answering