Jakub Bogusz created NIFI-15375:
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Summary: Introduce an ability to keep first occurrence of an
attribute in MergeContent
Key: NIFI-15375
URL: https://issues.apache.org/jira/browse/NIFI-15375
Project: Apache NiFi
Issue Type: New Feature
Components: Extensions
Reporter: Jakub Bogusz
This would be particularly useful when working with time-series data. Currently
if the flow includes a MergeContent processor, then determining the start time
of a process later in the flow (eg: when calculating latency) requires the
timestamp to be stored in the flow file's content, reading through it &
aggregating manually. Adding an ability to preserve the 1st occurrence of the
attribute would make such easier & more efficient.
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