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https://issues.apache.org/jira/browse/HIVE-350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12682816#action_12682816
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Namit Jain commented on HIVE-350:
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The explain plan is not wrong perse - the order is random, and eventually the
select corrects the order. But, it was very difficult to understand
> [Hive] wrong order in explain plan
> ----------------------------------
>
> Key: HIVE-350
> URL: https://issues.apache.org/jira/browse/HIVE-350
> Project: Hadoop Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Namit Jain
> Assignee: Namit Jain
> Attachments: hive.350.1.patch
>
>
> In case of multiple aggregations, the explain plan might be wrong -the order
> of aggregations since AbParseInfo maintains the information in a hashmap,
> which does the guarantee the results to be returned in order
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