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Posted to issues@drill.apache.org by "Paul Rogers (JIRA)" <ji...@apache.org> on 2017/05/10 03:43:04 UTC
[jira] [Created] (DRILL-5498) CSV text reader does not properly
handle duplicate header names
Paul Rogers created DRILL-5498:
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Summary: CSV text reader does not properly handle duplicate header names
Key: DRILL-5498
URL: https://issues.apache.org/jira/browse/DRILL-5498
Project: Apache Drill
Issue Type: Bug
Affects Versions: 1.8.0
Reporter: Paul Rogers
Priority: Minor
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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