Query optimization in information integration for queries involving aggregation and group by.
Wejdan AlkaldiFereidoon SadriPublished in: ICDIM (2011)
Keyphrases
- query optimization
- queries involving
- information integration
- recursive queries
- database systems
- cost model
- data sources
- semi structured
- query execution
- join queries
- query processing
- xml data
- topic maps
- query rewriting
- data sets
- database
- relational database systems
- query interface
- continuous queries
- query optimizer
- relational databases