508 search results - page 22 / 102 » Bringing Order to Query Optimization |
SIGMOD
2009
ACM
14 years 8 months ago
2009
ACM
In order to enable extensibility, modern query optimizers typically leverage a transformation rule based framework. Testing individual rule correctness as well as correctness of r...
WWW
2010
ACM
14 years 2 months ago
2010
ACM
The Semantic Web community, until now, has used traditional database systems for the storage and querying of RDF data. The SPARQL query language also closely follows SQL syntax. A...
IDEAS
2009
IEEE
13 years 5 months ago
2009
IEEE
We consider the class of database programs and address the problem of minimizing the cost of their exchanges with the database server. This cost partly consists of query execution...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
Most relational query optimizers make use of information about the costs of accessing tuples and data structures on various storage devices. This information can at times be off b...
SIGMOD
2009
ACM
14 years 2 months ago
2009
ACM
The state of the art commercial query optimizers employ cost-based optimization and exploit dynamic programming (DP) to find the optimal query execution plan (QEP) without evalua...