Sciweavers

2217 search results - page 1 / 444
» Rank-aware Query Optimization
Sort
View
VLDB
2004
ACM
118views Database» more  VLDB 2004»
13 years 9 months ago
Green Query Optimization: Taming Query Optimization Overheads through Plan Recycling
PLASTIC [1] is a recently-proposed tool to help query optimizers significantly amortize optimization overheads through a technique of plan recycling. The tool groups similar quer...
Parag Sarda, Jayant R. Haritsa
DEXA
2003
Springer
108views Database» more  DEXA 2003»
13 years 8 months ago
Exploiting Similarity of Subqueries for Complex Query Optimization
Query optimizers in current database management systems (DBMS) often face problems such as intolerably long optimization time and/or poor optimization results when optimizing compl...
Yingying Tao, Qiang Zhu, Calisto Zuzarte
ICDE
1996
IEEE
178views Database» more  ICDE 1996»
14 years 5 months ago
Query Folding
Query folding refers to the activity of determining if and how a query can be answered using a given set of resources, which might be materialized views, cached results of previou...
Xiaolei Qian
HPCC
2005
Springer
13 years 9 months ago
Distributed Query Optimization in the Stack-Based Approach
Abstract. We consider query execution strategies for object-oriented distributed databases. There are several scenarios of query decomposition, assuming that the corresponding quer...
Hanna Kozankiewicz, Krzysztof Stencel, Kazimierz S...
VLDB
2002
ACM
126views Database» more  VLDB 2002»
13 years 3 months ago
Plan Selection Based on Query Clustering
Query optimization is a computationally intensive process, especially for complex queries. We present here a tool, called PLASTIC, that can be used by query optimizers to amortize...
Antara Ghosh, Jignashu Parikh, Vibhuti S. Sengar, ...