363 search results - page 27 / 73 » Analyzing Plan Diagrams of Database Query Optimizers |
DEXAW
1999
IEEE
14 years 1 months ago
1999
IEEE
This paper describes an algebra for use with parallel object databases, and in particular ODMG compliant databases with OQL. Although there have been many proposals for parallel r...
EDBT
2010
ACM
14 years 1 months ago
2010
ACM
In adaptive query processing, the way in which a query is evaluated is changed in the light of feedback obtained from the environment during query evaluation. Such feedback may, f...
VLDB
2001
ACM
14 years 1 months ago
2001
ACM
Most modern DBMS optimizers rely upon a cost model to choose the best query execution plan (QEP) for any given query. Cost estimates are heavily dependent upon the optimizer’s e...
SIGMOD
2010
ACM
13 years 9 months ago
2010
ACM
Trajectory search has long been an attractive and challenging topic which blooms various interesting applications in spatial-temporal databases. In this work, we study a new probl...
ICDE
2007
IEEE
14 years 3 months ago
2007
IEEE
Partitioned query processing is an effective method to process continuous queries with large stateful operators in a distributed systems. This method typically partitions input da...