Algebraic query optimization for distributed top-k queries.
Thomas NeumannSebastian MichelPublished in: Inform. Forsch. Entwickl. (2007)
Keyphrases
- query optimization
- query processing
- distributed query processing
- queries involving
- efficient query processing
- semantic query optimization
- database systems
- selectivity estimation
- cost model
- join queries
- query evaluation
- query execution plans
- join operators
- query plan
- recursive queries
- efficient execution
- efficient processing
- query execution
- cardinality estimation
- data management
- aggregate queries
- query processing and optimization
- cost estimation
- execution plan
- query optimizers
- query rewriting
- approximate query answering
- range queries
- query scheduling
- multidatabase systems
- distributed systems
- index structure
- query result
- xml data
- relational database systems
- distributed environment
- query optimizer
- peer to peer
- user queries
- r tree
- complex queries
- query language
- databases
- sparql queries
- unstructured p p systems
- object oriented databases
- join algorithms
- query execution plan