Progressive Query Optimization for Federated Queries.
Stephan EwenHolger KacheVolker MarklVijayshankar RamanPublished in: EDBT (2006)
Keyphrases
- query optimization
- query processing
- queries involving
- query execution plan
- selectivity estimation
- semantic query optimization
- cost model
- query execution plans
- join queries
- query plan
- query optimizers
- approximate query answering
- efficient query processing
- complex queries
- efficient execution
- recursive queries
- query rewriting
- database systems
- execution plan
- query scheduling
- xml data
- query execution
- multidatabase systems
- query processing and optimization
- query optimizer
- query evaluation
- query containment
- cost estimation
- efficient processing
- data sources
- relational database systems
- cardinality estimation
- relational queries
- duplicate elimination
- query language
- user queries
- sparql queries
- data management
- join operators
- multiple queries
- database
- response time
- query formulation
- continuous queries
- query result
- range queries
- database queries