363 search results - page 10 / 73 » Analyzing Plan Diagrams of Database Query Optimizers |
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
Given a set of points P and a query point q, the reverse furthest neighbor (RFN) query fetches the set of points p P such that q is their furthest neighbor among all points in P {...
SIGMOD
2002
ACM
14 years 7 months ago
2002
ACM
Statistics play an important role in influencing the plans produced by a query optimizer. Traditionally, optimizers use statistics built over base tables and assume independence b...
VLDB
1993
ACM
13 years 11 months ago
1993
ACM
III this paper we address the problem of controlling the execution of a query optimizer. We describe a control for the optimization process that is based on planning. The controll...
ICDE
2011
IEEE
12 years 11 months ago
2011
IEEE
— Optimal location (OL) queries are a type of spatial queries particularly useful for the strategic planning of resources. Given a set of existing facilities and a set of clients...
VLDB
1995
ACM
13 years 11 months ago
1995
ACM
Traditionally, optimizers are “programmed” to optimize queries following a set of buildin procedures. However, optimizers should be robust to its changing environment to gener...