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From "John Sichi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-1470) percentile_approx() fails with more than 1 reducer
Date Sat, 17 Jul 2010 23:34:49 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12889550#action_12889550
] 

John Sichi commented on HIVE-1470:
----------------------------------

Unit test?


> percentile_approx() fails with more than 1 reducer
> --------------------------------------------------
>
>                 Key: HIVE-1470
>                 URL: https://issues.apache.org/jira/browse/HIVE-1470
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 0.6.0
>            Reporter: Mayank Lahiri
>            Assignee: Mayank Lahiri
>             Fix For: 0.7.0
>
>         Attachments: HIVE-1470.1.patch
>
>
> The larger issue is that a UDAF that has variable return types needs two inner Evaluator
classes. This patch fixes a NullPointerException bug that is only encountered when partial
aggregations are invoked.

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