NIFI-14266 - Allow ExecuteSQL to not overwrite flowfile content when no result

[sfc-gh-mgemra]

Summary

NIFI-14266 - Allow ExecuteSQL to not overwrite flowfile content when no result

The ExecuteSQL processor may be used in a flow definition to execute SQL statements such as TRUNCATE TABLE, DROP TABLE, etc. While there is the option to use pre/post queries, it might not always be an option to have everything executed within the same processor. In such a scenario, it might be needed to not change the content of the FlowFile.

This improvement adds a property allowing a user to specify that the FlowFile's content should remain untouched when the execution of the query does not generate any result and, of course, when the processor was triggered by an incoming FlowFile.

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  • JDK 21

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[exceptionfactory]

Thanks for picking up these changes @sfc-gh-mgemra, this looks good except for one remaining detail regarding the value and displayName for the enum.

[exceptionfactory]

Thanks for making the adjustments @sfc-gh-mgemra. On final review, I noticed the property value comparison could be simplified, and I also adjusted the described value display names to Empty and Original in order to align more closely with the actual behavior.

Planning to merge pending successful automated builds.