MAINTAINING A BUFFER STATE IN A DATABASE QUERY ENGINE
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United States of America Patent
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Issued Date -
May 2, 2013
app pub date -
Oct 27, 2011
filing date -
Oct 27, 2011
priority date (Note) -
Abandoned
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Abstract
Methods, apparatus and articles of manufacture to maintain a buffer state in a database query engine are disclosed. An example method disclosed herein includes identifying two or more input tuples associated with a query, identifying two or more output tuples associated with the query, associating the input tuples with a query engine input buffer, associating the output tuples with a query engine output buffer, and maintaining a state of the query engine input buffer and the query engine output buffer in response to executing the query in the database query engine to process the input tuples and the output tuples.
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