817 search results - page 2 / 164 » Generating Efficient Plans for Queries Using Views |
FUIN
2010
13 years 5 months ago
2010
Fast plan adaptation is important in many AI-applications. From a theoretical point of view, in the worst case adapting an existing plan to solve a new problem is no more efficien...
ICDE
2005
IEEE
14 years 9 months ago
2005
IEEE
Data warehousing and on-line analytical processing (OLAP) are essential for decision support applications. Common OLAP operations include for example drill down, roll up, pivot an...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
Good cardinality estimates are critical for generating good execution plans during query optimization. Complex predicates, correlations between columns, and user-defined functions...
IJCAI
2003
13 years 9 months ago
2003
Information integration systems provide a uniform query interface to a set of sources. One of the key challenges for an information integration system is to provide maximally comp...
ICDE
2007
IEEE
14 years 9 months ago
2007
IEEE
A conventional materialized view blindly materializes and maintains all rows of a view, even rows that are never accessed. We propose a more flexible materialization strategy aime...