Query Rewriting and Optimization for Ontological Databases.
Georg GottlobGiorgio OrsiAndreas PierisPublished in: CoRR (2014)
Keyphrases
- query rewriting
- databases
- data integration
- query answering
- query optimization
- database
- conjunctive queries
- relational databases
- view definitions
- spatial databases
- database applications
- data management
- knowledge representation
- xml queries
- heterogeneous data
- xpath queries
- database systems
- query evaluation
- knowledge discovery
- cost model
- complex queries
- data sources