[jira] [Created] (DRILL-2217) Trying to flatten an empty list should return a "Functionality not supported" message

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

Rahul Challapalli created DRILL-2217:
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             Summary: Trying to flatten an empty list should return a "Functionality not supported" message
                 Key: DRILL-2217
                 URL: https://issues.apache.org/jira/browse/DRILL-2217
             Project: Apache Drill
          Issue Type: Bug
          Components: Functions - Drill
            Reporter: Rahul Challapalli
            Assignee: Daniel Barclay (Drill/MapR)
            Priority: Minor


git.commit.id.abbrev=3d863b5

Data Set :
{code}
{"empty":[[],[[]]]}
{code}

Query :
{code}
select flatten(empty) from `data1.json`;
Query failed: RemoteRpcException: Failure while running fragment.[ 1b3123d9-92bc-45d5-bef8-b5f1be9def07 on qa-node191.qa.lab:31010 ]
[ 1b3123d9-92bc-45d5-bef8-b5f1be9def07 on qa-node191.qa.lab:31010 ]
{code}

This error currently does not indicate as to why the query failed. We should mention that it is not supported.

I also attached the error from the logs



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