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https://issues.apache.org/jira/browse/NIFI-3471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15864319#comment-15864319
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Joseph Witt commented on NIFI-3471:
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thanks. It is clear now. We presently have two modes of attribute handling
for merge content as i recall. 'all unique attributes' and 'all matching
attributes'. This is an additional mode which is 'concatenate unique attribute
values'. The problem is that we cannot handle an arbitrarily large list of
attributes there and merge content is quite often used to merge very large sets
of data together. What is the use/value of the concatenated values? Would
like to understand the use case.
Thanks
Joe
> Tune MergeContent processor
> ---------------------------
>
> Key: NIFI-3471
> URL: https://issues.apache.org/jira/browse/NIFI-3471
> Project: Apache NiFi
> Issue Type: New Feature
> Reporter: Pedram Bashiri
> Priority: Minor
> Attachments: screenshot-1.png, screenshot-2.png, screenshot-3.png,
> screenshot-4.png, screenshot-5.png, screenshot-6.png, screenshot-7.png
>
>
> Tune MergeContent processor so we have the option to concatenate values of
> attributes from incoming FlowFiles into the outgoing FlowFile.
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