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175
Voted
SIGMOD
2007
ACM
16 years 19 days ago
2007
ACM
Partial evaluation has recently proven an effective technique for evaluating Boolean XPath queries over a fragmented tree that is distributed over a number of sites. What left ope...
180
Voted
SIGMOD
2007
ACM
16 years 19 days ago
2007
ACM
Two trends are converging to make the CPU cost of a table scan a more important component of database performance. First, table scans are becoming a larger fraction of the query p...
168
Voted
SIGMOD
2007
ACM
16 years 19 days ago
2007
ACM
Optimizing SQL subqueries has been an active area in database research and the database industry throughout the last decades. Previous work has already identified some approaches ...
172
Voted
SIGMOD
2005
ACM
16 years 19 days ago
2005
ACM
This paper introduces RankSQL, a system that provides a systematic and principled framework to support efficient evaluations of ranking (top-k) queries in relational database syst...
122
Voted
SIGMOD
2001
ACM
16 years 19 days ago
2001
ACM
Virtually all proposals for querying XML include a class of query we term "containment queries". It is also clear that in the foreseeable future, a substantial amount of...