2007 SIGMOD Test of Time Award
Online Aggregation
Joseph M. Hellerstein (UC Berkeley), Peter J. Haas (IBM Almaden Research Center), and Helen J. Wang (UC Berkeley)

The paper Online Aggregation from the 1997 ACM SIGMOD Conference in Tucson, AZ, was chosen from a number of potential candidates for the lasting impact that it had by opening up new database research directions. In the years since 1997, this frequently cited paper has had a significant influence on subsequent research on approximate query processing, sampling-based data reduction, and more recently, approaches to handling aggregation in stream data management and continuous query processing systems.