Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2005-12-27
2005-12-27
Corrielus, Jean M. (Department: 2162)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000, C707S793000, C707S793000, C707S793000
Reexamination Certificate
active
06980985
ABSTRACT:
A technique for performing query evaluation on distributed directories utilizes the creation of a “topology cache” defining the hierarchical relationship between the various directory servers (i.e., identifying “subordinate” and “superior” knowledge references associated with each directory server in the system). The created topology cache is then stored at each directory server, and forwarded to a client upon submitting a query to the system. Using the topology cache information at the client, a distributed query evaluation plan can be developed for use with complex queries, such as hierarchical and aggregate queries.
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Amer-Yahia Sihem
Srivastava Divesh
Suciu Dan
AT&T Corp.
Corrielus Jean M.
Woo Isaac M.
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