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https://issues.apache.org/jira/browse/ARROW-6003?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16931551#comment-16931551
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Antoine Pitrou commented on ARROW-6003:
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I can't reproduce. If I send one too few names, I get:
{code:java}
pyarrow.lib.ArrowInvalid: CSV parse error: Expected 1 columns, got 2
{code}
> [C++] Better input validation and error messaging in CSV reader
> ---------------------------------------------------------------
>
> Key: ARROW-6003
> URL: https://issues.apache.org/jira/browse/ARROW-6003
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Neal Richardson
> Priority: Major
> Labels: csv
>
> Followup to https://issues.apache.org/jira/browse/ARROW-5747. The error
> message(s) are not great when you give bad input. For example, if I give too
> many or too few {{column_names}}, the error I get is {{Invalid: Empty CSV
> file}}. In fact, that's about the only error message I've seen from the CSV
> reader, no matter what I've thrown at it.
> It would be better if error messages were more specific so that I as a user
> might know how to fix my bad input.
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