You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@tajo.apache.org by "Hyoungjun Kim (JIRA)" <ji...@apache.org> on 2014/06/05 14:36:02 UTC
[jira] [Assigned] (TAJO-866) COUNT DISTINCT with other aggregation
function throws ClassCastException.
[ https://issues.apache.org/jira/browse/TAJO-866?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hyoungjun Kim reassigned TAJO-866:
----------------------------------
Assignee: Hyoungjun Kim
> COUNT DISTINCT with other aggregation function throws ClassCastException.
> -------------------------------------------------------------------------
>
> Key: TAJO-866
> URL: https://issues.apache.org/jira/browse/TAJO-866
> Project: Tajo
> Issue Type: Bug
> Reporter: Hyoungjun Kim
> Assignee: Hyoungjun Kim
> Priority: Minor
>
> I tested with the following data and query.
> {noformat}
> default> select * from table1;
> id,code,qty
> -------------------------------
> 1,a,3
> 1,a,4
> 1,b,5
> 2,a,1
> 2,c,2
> 2,d,3
> default> select id, count(distinct code), avg(qty) from table101 group by id;
> 2014-06-05 21:29:56,960 ERROR: org.apache.tajo.worker.Task (run(390)) - org.apache.tajo.datum.NullDatum cannot be cast to org.apache.tajo.datum.ProtobufDatum
> java.lang.ClassCastException: org.apache.tajo.datum.NullDatum cannot be cast to org.apache.tajo.datum.ProtobufDatum
> at org.apache.tajo.engine.function.builtin.AvgLong.merge(AvgLong.java:66)
> at org.apache.tajo.engine.eval.AggregationFunctionCallEval.merge(AggregationFunctionCallEval.java:59)
> at org.apache.tajo.engine.planner.physical.SortAggregateExec.next(SortAggregateExec.java:77)
> at org.apache.tajo.engine.planner.physical.DistinctGroupbySortAggregationExec.next(DistinctGroupbySortAggregationExec.java:88)
> at org.apache.tajo.engine.planner.physical.StoreTableExec.next(StoreTableExec.java:77)
> at org.apache.tajo.worker.Task.run(Task.java:382)
> at org.apache.tajo.worker.TaskRunner$1.run(TaskRunner.java:406)
> at java.lang.Thread.run(Thread.java:744)
> {noformat}
--
This message was sent by Atlassian JIRA
(v6.2#6252)