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From "Sean Hsuan-Yi Chu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-4007) json reader treats empty list inconsistently,
Date Mon, 02 Nov 2015 19:28:27 GMT
Sean Hsuan-Yi Chu created DRILL-4007:

             Summary: json reader treats empty list inconsistently,
                 Key: DRILL-4007
                 URL: https://issues.apache.org/jira/browse/DRILL-4007
             Project: Apache Drill
          Issue Type: Bug
          Components: Storage - JSON
            Reporter: Sean Hsuan-Yi Chu
            Assignee: Sean Hsuan-Yi Chu
            Priority: Critical
         Attachments: a.json, b.json

Depending on where the empty list shows up, the empty list could be treated as empty-list
or just a null. 

Running the following query on the folder with files in the attachment can reproduce the observation:

|   a    |
| null   |
| ["b"]  |
| []     |

Note that both first and third records come from

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