Xi Zhang created IOTDB-4470:
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Summary: Use code generation to accelerate expression calculations
Key: IOTDB-4470
URL: https://issues.apache.org/jira/browse/IOTDB-4470
Project: Apache IoTDB
Issue Type: New Feature
Reporter: Xi Zhang
Assignee: Xi Zhang
when selecting expressions like (a+b)*c, iotdb use too many virtual function
calls.
we can avoid these repeat function call
just generate source code `return (a+b)*c` and then compile it. We will get a
much faster expression evaluator.
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