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https://issues.apache.org/jira/browse/DRILL-589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jacques Nadeau resolved DRILL-589.
----------------------------------
Resolution: Fixed
> order by desc fails on a aggregate query
> ----------------------------------------
>
> Key: DRILL-589
> URL: https://issues.apache.org/jira/browse/DRILL-589
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Ramana Inukonda Nagaraj
>
> 0: jdbc:drill:schema=dfs.drillTestDirP1> explain plan for select age,avg(gpa)
> from student group by age order by age desc;
> +------------+------------+
> | text | json |
> +------------+------------+
> | ScreenPrel: rowcount = 10.0, cumulative cost = {518.8342956229998 rows,
> 144.0 cpu, 0.0 io}, id = 16464
> SingleMergeExchangePrel(sort0=[0 DESC]): rowcount = 10.0, cumulative cost =
> {517.8342956229998 rows, 143.0 cpu, 0.0 io}, id = 16463
> SortPrel(sort0=[$0], dir0 |
> +------------+------------+
> 1 row selected (0.088 seconds)
> 0: jdbc:drill:schema=dfs.drillTestDirP1> select age,avg(gpa) from student
> group by age order by age desc;
> Query failed: org.apache.drill.exec.rpc.RpcException: Remote failure while
> running query.[error_id: "ce694964-2792-4e22-b253-75884b6ba57b"
> endpoint {
> address: "drillats3.qa.lab"
> user_port: 31010
> control_port: 31011
> data_port: 31012
> }
> error_type: 0
> message: "Failure while running fragment. < ClassCastException:[
> org.apache.drill.exec.vector.IntVector cannot be cast to
> org.apache.drill.exec.vector.Float8Vector ]"
> ]
> Error: exception while executing query (state=,code=0)
> Default order by which is asc works.
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