Hypertree Decompositions for Query Optimization.
Lucantonio GhionnaLuigi GranataGianluigi GrecoFrancesco ScarcelloPublished in: ICDE (2007)
Keyphrases
- query optimization
- hypertree decomposition
- decomposition methods
- database systems
- cost model
- query processing
- multidatabase systems
- cardinality estimation
- xml data
- query execution
- query optimizer
- cost estimation
- continuous queries
- database theory
- query plan
- selectivity estimation
- constraint satisfaction problems
- approximate query answering