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» Duplicate Elimination in Space-partitioning Tree Indexes
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SSDBM
2007
IEEE
111views Database» more  SSDBM 2007»
14 years 5 months ago
Duplicate Elimination in Space-partitioning Tree Indexes
Space-partitioning trees, like the disk-based trie, quadtree, kd-tree and their variants, are a family of access methods that index multi-dimensional objects. In the case of index...
Mohamed Y. Eltabakh, Mourad Ouzzani, Walid G. Aref
DASFAA
2007
IEEE
141views Database» more  DASFAA 2007»
14 years 2 months ago
An Efficient Index Lattice for XML Query Evaluation
Abstract. We have defined an XML structural index called the Structure Index Tree (SIT), which eliminates duplicate structures arising from the equivalent subtrees in an XML docume...
Wilfred Ng, James Cheng
SIGMOD
2005
ACM
136views Database» more  SIGMOD 2005»
14 years 4 months ago
Optimizing recursive queries in SQL
Recursion represents an important addition to the SQL language. This work focuses on the optimization of linear requeries in SQL. To provide an abstract framework for discussion, ...
Carlos Ordonez