RankSQL: Query Algebra and Optimization for Relational Top-k Queries.
Chengkai LiKevin Chen-Chuan ChangIhab F. IlyasSumin SongPublished in: SIGMOD Conference (2005)
Keyphrases
- query processing
- query language
- user defined
- relational queries
- efficient processing
- result set
- relational databases
- data model
- database
- aggregation queries
- user queries
- query evaluation
- database queries
- aggregate functions
- execution plan
- optimization algorithm
- optimization problems
- relational database systems
- retrieval systems
- database query languages
- complex queries
- query result
- answering queries
- exact and approximate
- candidate set
- response time
- range queries
- query plan
- query optimization
- relational calculus
- relational tables