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https://issues.apache.org/jira/browse/NIFI-6670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16929438#comment-16929438
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Matt Burgess commented on NIFI-6670:
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This might also be possible with GrokReader, but you have to supply the nominal
schema rather than just specifying the field name. TextLineReader would be much
more straightforward. One of the use cases is to take a file full of SQL
statements and execute them as a transaction using PutDatabaseRecord. That
avoids the need for splitting and using PutSQL, and results in a more efficient
flow.
> Create a RecordReader that reads lines of text into single-field records
> ------------------------------------------------------------------------
>
> Key: NIFI-6670
> URL: https://issues.apache.org/jira/browse/NIFI-6670
> Project: Apache NiFi
> Issue Type: New Feature
> Components: Extensions
> Reporter: Matt Burgess
> Priority: Major
>
> It would be nice to have a reader that can take any textual input and treat
> each "line" as a single-field record. This is like CSVReader but there
> wouldn't be a field delimiter; rather, a property to specify the name of the
> field, and each line becomes a value for that field in the record.
> Additional capabilities could be added as well, such as skipping header
> lines, grouping lines together as a single field value, ignoring empty lines,
> etc.
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