[jira] [Created] (DRILL-2834) Applying multiple flattens after a join results in an NPE

["Rahul Challapalli (JIRA)" <ji...@apache.org>]

Rahul Challapalli created DRILL-2834:
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             Summary: Applying multiple flattens after a join results in an NPE
                 Key: DRILL-2834
                 URL: https://issues.apache.org/jira/browse/DRILL-2834
             Project: Apache Drill
          Issue Type: Bug
          Components: Execution - Relational Operators
            Reporter: Rahul Challapalli
            Assignee: Chris Westin
         Attachments: data.json, error.log

git.commit.id.abbrev=5cd36c5

The below query fails :
{code}
select flatten(t1.lst_lst), flatten(t1.events) from `data.json` t1 inner join `data.json` t2 on t1.uid = t2.uid;
Query failed: SYSTEM ERROR: null

Fragment 0:0

[a27e431d-a598-4ec6-86b8-eb91d5d54161 on qa-node190.qa.lab:31010]
{code}

However if we only apply a single flatten things work as expected.

I attached the error logs and the data file. Let me know if you need anything more



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