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Posted to issues@drill.apache.org by "Sean Hsuan-Yi Chu (JIRA)" <ji...@apache.org> on 2015/04/13 19:12:12 UTC
[jira] [Updated] (DRILL-2181) Throw proper error message when
flatten is used within an 'order by' or 'group by'
[ https://issues.apache.org/jira/browse/DRILL-2181?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Hsuan-Yi Chu updated DRILL-2181:
-------------------------------------
Priority: Major (was: Minor)
> 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
> Components: Query Planning & Optimization
> Reporter: Rahul Challapalli
> Assignee: Sean Hsuan-Yi Chu
> Fix For: 0.9.0
>
>
> 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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