XAL: An Algebra For XML Query Optimization.
Flavius FrasincarGeert-Jan HoubenCristian PauPublished in: Australasian Database Conference (2002)
Keyphrases
- query optimization
- xml data
- data model
- query language
- xml documents
- database systems
- cost model
- xml databases
- xml queries
- cost estimation
- xml schema
- query processing
- multidatabase systems
- efficient query processing
- query evaluation
- cardinality estimation
- keyword search
- join operators
- query scheduling
- xpath queries
- relational databases
- semi structured data
- query processing and optimization
- data integration
- semantic query optimization
- object oriented
- databases
- efficient execution
- relational algebra
- query execution
- database
- semistructured data
- relational database systems
- database management systems
- query optimizers
- query rewriting
- semi structured
- selectivity estimation
- query execution plans
- metadata
- data sources
- data types
- expressive power
- join queries
- query result
- query optimizer
- complex objects
- building blocks
- path expressions
- conjunctive queries
- data management
- regular expressions
- continuous queries