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https://issues.apache.org/jira/browse/CSV-164?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15020662#comment-15020662
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Michael Osipov commented on CSV-164:
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I understand your usecase and your crappy $$$ output. It looks like the output
needs a pivot ;-)
Just looked at the source code of CSV and it needs a rewrite. All current code
relies on unique headers or maps. That just won't work.
What about Gary's idea? Skip header parsing and use indexes. That should work.
Or use a transforming reader for the first line which adds indexes to duplicate
headers and passes the rest?
> support duplicate headers
> -------------------------
>
> Key: CSV-164
> URL: https://issues.apache.org/jira/browse/CSV-164
> Project: Commons CSV
> Issue Type: Bug
> Reporter: Romain Manni-Bucau
>
> nothing prevents a CSV to have the same time the same header name so
> validation at the end of org.apache.commons.csv.CSVFormat#validate should
> likely disappear or should support a flag to disable it
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