[jira] [Commented] (NIFI-1280) Create QueryFlowFile Processor

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NIFI-1280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16009723#comment-16009723 ] 

ASF GitHub Bot commented on NIFI-1280:
--------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/nifi/pull/420


> Create QueryFlowFile Processor
> ------------------------------
>
>                 Key: NIFI-1280
>                 URL: https://issues.apache.org/jira/browse/NIFI-1280
>             Project: Apache NiFi
>          Issue Type: New Feature
>          Components: Extensions
>            Reporter: Mark Payne
>            Assignee: Mark Payne
>             Fix For: 1.2.0
>
>         Attachments: QueryFlowFile_Record_Reader-Writer_Examples.xml
>
>
> We should have a Processor that allows users to easily filter out specific columns from CSV data. For instance, a user would configure two different properties: "Columns of Interest" (a comma-separated list of column indexes) and "Filtering Strategy" (Keep Only These Columns, Remove Only These Columns).
> We can do this today with ReplaceText, but it is far more difficult than it would be with this Processor, as the user has to use Regular Expressions, etc. with ReplaceText.
> Eventually a Custom UI could even be built that allows a user to upload a Sample CSV and choose which columns from there, similar to the way that Excel works when importing CSV by dragging and selecting the desired columns? That would certainly be a larger undertaking and would not need to be done for an initial implementation.



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