Stephan Ewen created FLINK-1137:
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Summary: Add a way to configure mutable object safe mode versus
object reuse
Key: FLINK-1137
URL: https://issues.apache.org/jira/browse/FLINK-1137
Project: Flink
Issue Type: Improvement
Reporter: Stephan Ewen
Priority: Minor
Right now, Flink is conservative and takes precautions with respect to mutable
objects. Neither the modifying of objects that are input to UDFs, nor modifying
objects that are returned, will cause wrong results.
This incurs a certain overhead for some operators. Most operators have a way to
avoid that.
I propose an optional switch to allow to set the system to a mode where it
avoids those precautions, for the sake of efficiency.
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