Querying part hierarchies: a knowledge-based approach
Arnon S. Rosenthal, Sandra Heiler · 1987
Part Hierarchies are a fundamental datatype in CAD applications. But intelligent and efficient processing requires major extensions to DBMS data models, query languages, and processing algorithms. We explore formulations and execution algorithms for path-traversal queries. Hierarchy semantics are then exploited for spatial data and to intelligently choose an appropriate detail level for query output.