Relational Approach to Logical Query Optimization of XPath.
Maurice van KeulenPublished in: TDM (2004)
Keyphrases
- query optimization
- xml data
- relational data
- data model
- relational databases
- xml documents
- query processing
- cost model
- database systems
- xml query languages
- multidatabase systems
- query evaluation
- xml queries
- xpath queries
- join operators
- cost estimation
- native xml
- relational model
- cardinality estimation
- xml databases
- query scheduling
- query language
- efficient query processing
- query execution
- semantic query optimization
- efficient execution
- xml schema
- query rewriting
- query optimizer
- query execution plans
- databases
- transitive closure
- continuous queries
- relational database systems
- database schema
- selectivity estimation
- path expressions
- recursive queries
- xpath expressions
- query optimizers
- approximate query answering
- structured data
- semi structured data
- sql queries
- relational algebra