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https://issues.apache.org/jira/browse/DRILL-2476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14364323#comment-14364323
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Deneche A. Hakim commented on DRILL-2476:
-----------------------------------------
All operators that extend AbstractRecordBatch won't handle correctly
{{IterOutcome.STOP}} in {{buildSchema()}}
> Handle IterOutcome.STOP in buildSchema()
> ----------------------------------------
>
> Key: DRILL-2476
> URL: https://issues.apache.org/jira/browse/DRILL-2476
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Relational Operators
> Affects Versions: 0.7.0
> Reporter: Sudheesh Katkam
> Assignee: Sudheesh Katkam
> Fix For: 0.9.0
>
>
> There are some {{RecordBatch}} implementations like {{HashAggBatch}} that
> override the {{buildSchema()}} function. The overriding functions do not
> handle {{IterOutcome.STOP}}. This causes the {{FragmentContext}} to receive
> two failures in some cases (linked JIRAs).
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