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From "Chris Westin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-2181) Throw proper error message when flatten is used within an 'order by' or 'group by'
Date Fri, 20 Feb 2015 19:49:12 GMT

     [ https://issues.apache.org/jira/browse/DRILL-2181?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Westin updated DRILL-2181:
--------------------------------
    Priority: Minor  (was: Major)

> Throw proper error message when flatten is used within an 'order by' or 'group by'
> ----------------------------------------------------------------------------------
>
>                 Key: DRILL-2181
>                 URL: https://issues.apache.org/jira/browse/DRILL-2181
>             Project: Apache Drill
>          Issue Type: Bug
>            Reporter: Rahul Challapalli
>            Priority: Minor
>
> git.commit.id.abbrev=c54bd6a
> Flatten can be used within a group by or order by statement when the output of flatten
is a scalar. However drill currently does not support using flatten with the above operators
when its output is not a scalar. In such cases we should show a more appropriate error, possibly
indicating how to correct the query as well
> Currently this is what we get. This is obscure and does not pinpoint the issue
> {code}
> select * from `data1.json` order by flatten(events);
> Query failed: RemoteRpcException: Failure while running fragment., org.apache.drill.exec.vector.NullableIntVector
cannot be cast to org.apache.drill.exec.vector.RepeatedVector [ c3d85d23-7ea0-43ea-bbd3-ac18a0aa2de3
on qa-node191.qa.lab:31010 ]
> [ c3d85d23-7ea0-43ea-bbd3-ac18a0aa2de3 on qa-node191.qa.lab:31010 ]
> Error: exception while executing query: Failure while executing query. (state=,code=0)
> {code}



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