Dynamic partial uncompression of a database table
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United States of America Patent
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Aug 5, 2014
Grant Date -
Jul 25, 2013
app pub date -
Mar 8, 2013
filing date -
Aug 7, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A database dynamic partial uncompression mechanism determines when to dynamically uncompress one or more compressed portions of a database table that also includes uncompressed portions. A query may include an express term that specifies whether or not to skip compressed portions. In addition, a query may include associated information that specifies whether or not to skip compressed portions, and one or more thresholds that may be used to determine if the system is too busy to perform uncompression. A display mechanism may also determine whether or not to display compressed portions. The uncompression may occur at the database server or at a client. The database dynamic partial uncompression mechanism thus performs dynamic uncompression in a way that preferably uncompresses one or more compressed portions of a partially compressed database table only when the compressed portions satisfy a query and/or need to be displayed.
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