191 search results - page 3 / 39 » On producing join results early |
CIKM
2004
Springer
14 years 3 months ago
2004
Springer
We explore join optimizations in the presence of both timebased constraints (sliding windows) and value-based constraints (punctuations). We present the first join solution named...
ICDE
2011
IEEE
13 years 1 months ago
2011
IEEE
— Uncertain data is quite common nowadays in a variety of modern database applications. At the same time, the join operation is one of the most important but expensive operations...
ICDE
2003
IEEE
14 years 11 months ago
2003
IEEE
We investigate algorithms for evaluating moving window joins over pairs of unbounded streams. We introduce a unit-time-basis cost model to analyze the expected performance of thes...
IIS
2004
13 years 11 months ago
2004
Estimating the result size of a join is an important query optimization problem as it determines the choice of a good query evaluation strategy. Yet, there are few efficient techni...
SSDBM
2007
IEEE
14 years 4 months ago
2007
IEEE
Memory management is a critical issue in stream processing involving stateful operators such as join. Traditionally, the memory requirement for a stream join is query-driven: a qu...