Sharing Queries with Nonequivalent User-defined Aggregate Functions.
Chao ZhangFarouk ToumaniPublished in: ACM Trans. Database Syst. (2024)
Keyphrases
- user defined
- aggregate functions
- query language
- expressive power
- aggregate queries
- recursive queries
- relational algebra
- data model
- query processor
- relational calculus
- data types
- database
- transitive closure
- query evaluation
- functional dependencies
- relational model
- complex objects
- query processing
- xml data
- database theory
- association rules
- information retrieval