Keyphrases
- query processing
- query execution plan
- query optimization
- database systems
- multidatabase environment
- efficient query processing
- data management
- index structure
- range queries
- r tree
- data partitioning
- similarity search
- user queries
- cost model
- database query processing
- database
- query evaluation
- efficient processing
- aggregate queries
- processing queries
- query processor
- multidatabase systems
- join algorithms
- data structure
- continuous queries
- db universal database
- text understanding
- relational database management systems
- information retrieval systems
- database management systems