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https://issues.apache.org/jira/browse/NIFI-1706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16171151#comment-16171151
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ASF GitHub Bot commented on NIFI-1706:
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GitHub user patricker opened a pull request:
https://github.com/apache/nifi/pull/2162
NIFI-1706 Extend QueryDatabaseTable to support arbitrary queries
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You can merge this pull request into a Git repository by running:
$ git pull https://github.com/patricker/nifi NIFI-1706
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/nifi/pull/2162.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2162
----
commit 5169001108051c395be8cee1a08c7dc1fbf1b0f5
Author: patricker <[email protected]>
Date: 2017-09-19T05:50:06Z
NIFI-1706
----
> Extend QueryDatabaseTable to support arbitrary queries
> ------------------------------------------------------
>
> Key: NIFI-1706
> URL: https://issues.apache.org/jira/browse/NIFI-1706
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework
> Affects Versions: 1.4.0
> Reporter: Paul Bormans
> Assignee: Peter Wicks
> Labels: features
>
> The QueryDatabaseTable is able to observe a configured database table for new
> rows and yield these into the flowfile. The model of an rdbms however is
> often (if not always) normalized so you would need to join various tables in
> order to "flatten" the data into useful events for a processing pipeline as
> can be build with nifi or various tools within the hadoop ecosystem.
> The request is to extend the processor to specify an arbitrary sql query
> instead of specifying the table name + columns.
> In addition (this may be another issue?) it is desired to limit the number of
> rows returned per run. Not just because of bandwidth issue's from the nifi
> pipeline onwards but mainly because huge databases may not be able to return
> so many records within a reasonable time.
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