PPT Slide
Some OR-DBMS Performance Issues
- Bucky OR-DBMS benchmark from UW-Madison
- Based on a hypothetical university schema
- Exercised a range of OR-DBMS features
- Row types, inheritance, late binding, subtables
- Queries involving path expressions and/or sets
- ADTs (black or white box) and functions
- In Proc. 1997 ACM SIGMOD Conference
- Tested a first-generation OR-DBMS product
- OR versus relational simulation, same DB engine
- Showed benefits of (complex) ADTs, indexes on functions
- Indicated areas where query optimization needs schema support: scope for path expressions, inverse relationships
- Turned up bugs and performance problems (e.g., sets)