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https://issues.apache.org/jira/browse/HIVE-4333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13636456#comment-13636456
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Ashutosh Chauhan commented on HIVE-4333:
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bq. There are diffs because of precision. Some of the avg and sum functions are
now wrapped in 'round'
I didn't get this part. All this computation is within Hive, it shouldn't be
affected by hadoop version. wrapped in 'round' ? in Hive or Hadoop?
bq. Looks like the shuffle in 2.0 reorders the rows even in this case.
Yeah thats possible. Since in over() partitioning is by constant so all rows
have same value for partitioning column so they can arrive in any order. We
need to come up with clever way of writing test which still test over() but
gives ordered result for both hadoop 1 and hadoop2
> most windowing tests fail on hadoop 2
> -------------------------------------
>
> Key: HIVE-4333
> URL: https://issues.apache.org/jira/browse/HIVE-4333
> Project: Hive
> Issue Type: Bug
> Reporter: Gunther Hagleitner
> Assignee: Matthew Weaver
> Attachments: HIVE-4333.1.patch.txt
>
>
> Problem is different order of results on hadoop 2
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