Methods and systems for managing permissions data and/or indexes
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United States of America Patent
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Jul 14, 2015
Grant Date -
Feb 8, 2007
app pub date -
Aug 4, 2006
filing date -
Jun 25, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Systems and methods for indexing and searching data, such as file contents and/or metadata. In one exemplary method, an index corresponding to files on a storage device is created. Index is partitioned into subindexes according to certain criteria, such as the location of files or exclusivity of access to files. Subindex contains the entire content of files or metadata describing files, in addition to identifiers leading back to files' physical storage. Index is maintained by moving files' index entries from one subindex to another as files change in relation to the partition criteria, such as changing location. Searching some subindexes, like one corresponding to files in a shared folder, is done with permission checking. Searches of certain other subindexes, like one corresponding to the home folder of the user searching, are done without permission checking the underlying files resulting in a performance improvement.
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