Optimizing aggregate processing
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United States of America Patent
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Feb 2, 2010
Grant Date -
Aug 16, 2007
app pub date -
Apr 20, 2007
filing date -
Dec 19, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is method for processing an aggregate function. Rows that contain a reference to intermediate result structures are grouped to form groups. For each group, aggregate element structures are formed from the intermediate result structures and, if the aggregate function specifies ordering, the aggregate element structures are sorted based on a sort key.
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