Keyphrases
- query optimization
- query processing
- distributed query processing
- database systems
- cost model
- query execution
- query execution plans
- multidatabase systems
- parallel query processing
- query evaluation
- cost estimation
- efficient query processing
- data management
- efficient processing
- index structure
- query execution plan
- query scheduling
- distributed systems
- distributed environment
- cardinality estimation
- continuous queries
- xml data
- relational database systems
- query optimizer
- data placement
- join queries
- query processor
- execution plan
- r tree
- query processing and optimization
- approximate query answering
- join algorithms
- database query processing
- data partitioning
- query result
- query plan
- selectivity estimation
- range queries
- query optimizers
- similarity search
- databases
- join operator
- data intensive
- distributed database systems
- sliding window