Github user jinfengni commented on the issue:
https://github.com/apache/drill/pull/716
In the current code generator, we log both the source code and the size of
source / byte code, the time spent on compiling, and the complier (Janino vs
JDK) at debug level. It's probably debatable to log the source code, but the
other information is quite useful for analyzing customer issue. In the
plain-old style generator, seems we do not put those information in debug log.
For now, the patch is not enabled. But in the future, if we are going to use
this new code generator in production, we had better log more information(
either in the log, or in operator profile), as that will help improve service
workload.
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