91 search results - page 2 / 19 » Accurate Estimation of the Cost of Spatial Selections |
SAC
2008
ACM
13 years 7 months ago
2008
ACM
Modern applications requiring spatial network processing pose many interesting query optimization challenges. In many cases, query processing depends on the corresponding graph si...
ISCI
2007
13 years 7 months ago
2007
In an object-relational database management system, a query optimizer requires users to provide cost models of userdefined functions. The traditional approach is analytical, that...
ICDE
2000
IEEE
14 years 9 months ago
2000
IEEE
Analysis of range queries on spatial (multidimensional) data is both important and challenging. Most previous analysis attempts have made certain simplifying assumptions about the...
DASFAA
2004
IEEE
13 years 11 months ago
2004
IEEE
Abstract. The efficient management of interval sequences represents a core requirement for many temporal and spatial database applications. With the Relational Interval Tree (RI-tr...
ICDE
2007
IEEE
14 years 2 months ago
2007
IEEE
Most database query optimizers use cost models to identify good query execution plans. Inaccuracies in the cost models can cause query optimizers to select poor plans. In this pap...