User-defined aggregate functions: bridging theory and practice

  title={User-defined aggregate functions: bridging theory and practice},
  author={Sara Cohen},
  booktitle={SIGMOD Conference},
The ability to create user-defined aggregate functions (UDAs) is rapidly becoming a standard feature in relational database systems. Therefore, problems such as query optimization, query rewriting and view maintenance must take into account queries (or views) with UDAs. There is a wealth of research on these problems for queries with general aggregate functions. Unfortunately, there is a mismatch between the manner in which UDAs are created, and the information that the database system requires… CONTINUE READING
Highly Cited
This paper has 41 citations. REVIEW CITATIONS