664 search results - page 1 / 133 » Adaptive Selectivity Estimation Using Query Feedback |
SIGMOD
1994
ACM
13 years 8 months ago
1994
ACM
In this paper, we propose a novel approach for estimating the record selectivities of database queries. The real attribute value distribution is adaptively approximated by a curve...
ADC
2007
Springer
13 years 10 months ago
2007
Springer
Histograms are used extensively for selectivity estimation and approximate query processing. Workloadaware dynamic histograms can self-tune itself based on query feedback without ...
EDBT
2010
ACM
13 years 9 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...
Publication
This paper presents a framework for building and continuously maintaining spatio-temporal histograms (ST-Histograms, for short). ST-Histograms are used for selectivity estimation o...
ICDE
2004
IEEE
14 years 5 months ago
2004
IEEE
Queries with (equality or LIKE) selection predicates over string attributes are widely used in relational databases. However, state-of-the-art techniques for estimating selectivit...