Selectivity Estimation and Query Optimization in Large Databases with Highly Skewed Distribution of Column Values.
Clifford A. LynchPublished in: VLDB (1988)
Keyphrases
- query optimization
- selectivity estimation
- highly skewed
- cardinality estimation
- approximate query answering
- database systems
- query processing
- cost model
- databases
- query optimizer
- class distribution
- cost estimation
- xml data
- knowledge discovery
- query execution
- data structure
- object oriented
- text mining
- attribute values
- feature selection
- data sets
- database