Increasing parallelism of function evaluation in a database
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United States of America Patent
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Feb 6, 2007
Grant Date -
N/A
app pub date -
Nov 22, 2002
filing date -
Nov 22, 2002
priority date (Note) -
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Abstract
Methods and apparatus for parallel execution in a database system. In one implementation, a database system includes: one or more data storage facilities for use in storing data composing records in tables of a database; one or more processing modules configured to manage the data stored in the data-storage facilities, where at least one processing module is configured to: open a memory pipe for a pipe operator, run a first thread to execute a pipe source operation providing output data to the memory pipe, and run a second thread to execute a pipe sink operation receiving input data from the memory pipe while the first thread is running; and a database management component configured to parse an expression and recognize a pipe operator and a pipe source operation and a pipe sink operation for the pipe operator.
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