624 search results - page 15 / 125 » Mutant Query Plans |
77
Voted
ICDE
2007
IEEE
15 years 3 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...
EDBT
2010
ACM
15 years 2 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
2007
ACM
15 years 3 months ago
2007
ACM
Forecasting future events based on historic data is useful in many domains like system management, adaptive query processing, environmental monitoring, and financial planning. We...
65
Voted
PVLDB
2008
14 years 9 months ago
2008
Past work has suggested that query execution feedback can be useful in improving the quality of plans by correcting cardinality estimation errors in the query optimizer. The state...
71
Voted
VLDB
2001
ACM
15 years 1 months ago
2001
ACM
imizer Communication using Abstract Plans in Sybase ASE Query optimizers are error prone, due to both their nature and the increased search space that modern query processing requ...