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https://issues.apache.org/jira/browse/NIFI-1280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15865969#comment-15865969
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ASF GitHub Bot commented on NIFI-1280:
--------------------------------------
Github user markap14 commented on a diff in the pull request:
https://github.com/apache/nifi/pull/420#discussion_r101063559
--- Diff:
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/pom.xml ---
@@ -235,6 +235,11 @@ language governing permissions and limitations under
the License. -->
<artifactId>json-utils</artifactId>
<version>0.0.20</version>
</dependency>
+ <dependency>
+ <groupId>org.apache.calcite</groupId>
+ <artifactId>calcite-example-csv</artifactId>
+ <version>1.7.0</version>
--- End diff --
@trixpan yes certainly. I took over this ticket but unfortunately haven't
had a chance to work on it much until recently. A week or two ago, I picked it
up again and plan to have this into the 1.2.0 version of NiFi. I have updated
to the latest version in my local branch. Thanks for calling this out!
> Create FilterCSVColumns Processor
> ---------------------------------
>
> Key: NIFI-1280
> URL: https://issues.apache.org/jira/browse/NIFI-1280
> Project: Apache NiFi
> Issue Type: Task
> Components: Extensions
> Reporter: Mark Payne
> Assignee: Toivo Adams
>
> 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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