Direct call threaded code
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United States of America Patent
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Jun 24, 2008
Grant Date -
N/A
app pub date -
Jul 28, 2000
filing date -
Jul 30, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pre-pass and direct call mechanism which replaces the interpreter. The mechanism moves static decisions out of the repeated runtime path into a pre-pass operation. Advantageously, the mechanism reduces runtime overhead and improves overall performance of the DBMS during runtime, while maintaining the considerable investment in opcode generation and plan representation.
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