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https://issues.apache.org/jira/browse/DRILL-5498?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Khurram Faraaz updated DRILL-5498:
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Component/s: Storage - Text & CSV
> CSV text reader does not handle duplicate header names
> ------------------------------------------------------
>
> Key: DRILL-5498
> URL: https://issues.apache.org/jira/browse/DRILL-5498
> Project: Apache Drill
> Issue Type: Bug
> Components: Storage - Text & CSV
> Affects Versions: 1.8.0
> Reporter: Paul Rogers
> Assignee: Paul Rogers
> Priority: Minor
> Labels: ready-to-commit
> Fix For: 1.11.0
>
>
> Consider the following CSV file:
> {code}
> h,h,h
> a,b,c
> d,e,f
> {code}
> Parse this with the CSV storage plugins to parse headers. The result:
> {code}
> 2 row(s):
> h
> c
> f
> {code}
> Expected a runtime error for the duplicate column names, or automatic
> "uniqification" of the names. Certainly did not expect the first two columns
> to be dropped.
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