624 search results - page 61 / 125 » Mutant Query Plans |
VLDB
1995
ACM
14 years 1 months ago
1995
ACM
Efficient processing of aggregation queries is essential for decision support applications. This paper describes a class of query transformations, called eager aggregation and lat...
VLDB
2002
ACM
13 years 9 months ago
2002
ACM
In spite of the many decades of progress in database research, surprisingly scientists in the life sciences community still struggle with inefficient and awkward tools for queryin...
PPDP
2010
Springer
13 years 8 months ago
2010
Springer
Database query optimizers rely on data statistics in selecting query execution plans. Similar query optimization techniques are desirable for deductive databases and, to make this...
ICDE
2008
IEEE
14 years 11 months ago
2008
IEEE
Abstract-- Our demonstration introduces a novel system architecture which massively facilitates optimization in data stream management systems (DSMS). The basic idea is to decouple...
AIPS
2008
14 years 9 days ago
2008
In the planning-as-SAT paradigm there have been numerous recent developments towards improving the speed and scalability of planning at the cost of finding a step-optimal parallel...