Query processing over incomplete autonomous databases: query rewriting using learned data dependencies.
Garrett WolfAravind KalavagattuHemal KhatriRaju BalakrishnanBhaumik ChokshiJianchun FanYi ChenSubbarao KambhampatiPublished in: VLDB J. (2009)
Keyphrases
- data dependencies
- query rewriting
- query processing
- relational databases
- null values
- databases
- query optimization
- query execution
- query result
- database systems
- xml data
- data integration
- sql queries
- conjunctive queries
- functional dependencies
- query evaluation
- normal form
- xml queries
- data management
- incomplete data
- query answering
- cost model
- database
- relational database systems
- data warehouse
- database schema
- data model
- r tree
- data exchange
- heterogeneous data
- missing data
- complex queries
- response time
- relational model
- xml documents
- continuous queries
- query plan
- spatial databases
- similarity search
- computational complexity
- metadata
- data sets
- deep web
- knowledge discovery
- missing values
- database management systems