A cost-based join selection for XML twig content-based queries.
Radim BacaMichal KrátkýPublished in: DataX@EDBT (2008)
Keyphrases
- twig queries
- twig pattern
- join algorithms
- efficient processing
- query evaluation
- query processing
- join operators
- xml queries
- xml data
- join operator
- join operations
- query plan
- pattern queries
- query optimization
- probabilistic xml
- join queries
- query result
- xml query processing
- query engine
- xml databases
- xml documents
- encoding scheme
- execution plan
- structural join
- cost model
- spatial join
- query language
- xml trees
- range queries
- xpath queries
- xml query languages
- query patterns
- image retrieval
- aggregate queries
- data integration
- similarity join
- query types
- user queries
- relational databases
- query execution
- main memory
- path expressions
- labeling scheme
- conjunctive queries
- native xml databases
- xml schema
- view selection
- aggregate functions
- transitive closure
- multi dimensional
- tree patterns
- keyword queries