SIGMOD
1997
ACM
14 years 3 months ago
1997
ACM
Aggregation in traditional database systems is performed in batch mode: a query is submitted, the system processes a large volume of data over a long period of time, and, eventual...
VLDB
1999
ACM
14 years 3 months ago
1999
ACM
We present a pipelining, dynamically usercontrollable reorder operator, for use in dataintensive applications. Allowing the user to reorder the data delivery on the fly increases...
SIGMOD
2010
ACM
14 years 4 months ago
2010
ACM
In this paper, we propose an online aggregation system called COSMOS (Continuous Sampling for Multiple queries in an Online aggregation System), to process multiple aggregate quer...
VLDB
2009
ACM
14 years 11 months ago
2009
ACM
For a largenumber of data management problems, it would be very useful to be able to obtain a few samples from a data set, and to use the samples to guess the largest (or smallest)...