Join Selectivity Re-estimation for Repetitive Queries in Databases.
Feng YuWen-Chi HouCheng LuoQiang ZhuDunren ChePublished in: DEXA (2) (2011)
Keyphrases
- databases
- query processing
- selectivity estimation
- database queries
- database
- query optimization
- data sources
- spatial join
- relational database systems
- join queries
- database systems
- efficient processing
- data management
- query language
- relational databases
- data retrieval
- query engine
- query evaluation
- join algorithms
- indexing techniques
- join operations
- query result
- join operator
- complex queries
- web search engines
- range queries
- data integration
- database management systems
- relational database management systems
- map reduce
- statistical databases
- query plan
- duplicate elimination
- query interface
- cost model
- database applications
- foreign key
- set valued attributes
- approximate matches
- answering queries
- database objects
- aggregate queries
- xml queries
- query execution
- web databases
- data model