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Posted to issues@drill.apache.org by "Paul Rogers (JIRA)" <ji...@apache.org> on 2017/05/29 23:48:04 UTC
[jira] [Created] (DRILL-5555) CSV file without headers: "SELECT a"
fails, "SELECT columns, a" succeeds
Paul Rogers created DRILL-5555:
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Summary: CSV file without headers: "SELECT a" fails, "SELECT columns, a" succeeds
Key: DRILL-5555
URL: https://issues.apache.org/jira/browse/DRILL-5555
Project: Apache Drill
Issue Type: Bug
Affects Versions: 1.10.0
Reporter: Paul Rogers
Priority: Minor
Consider the case discussed in DRILL-5554. Do exactly the same setup, but with a slightly different query. The results are much different.
Create a CSV file without headers:
{code}
10,foo,bar
{code}
Use a CSV storage plugin configured to not skip the first line and not read headers.
Then, issue the following query:
{code}
SELECT columns, a FROM `dfs.data.example.csv`
{code}
Result:
{code}
columns,a
["10","foo","bar"],null
{code}
Schema:
{code}
columns(VARCHAR:REPEATED),
a(INT:OPTIONAL)
{code}
Since the query in DRILL-5554 fails:
{code}
SELECT a FROM ...
{code}
Expected the query described here to also fail, for a similar reason.
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