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https://issues.apache.org/jira/browse/HIVE-2498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13223971#comment-13223971
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Ashutosh Chauhan commented on HIVE-2498:
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Ignore the previous review request. That was meant for HIVE-2517. Use the one
above that one for this issue HIVE-2498
> Group by operator doesnt estimate size of Timestamp & Binary data correctly
> ---------------------------------------------------------------------------
>
> Key: HIVE-2498
> URL: https://issues.apache.org/jira/browse/HIVE-2498
> Project: Hive
> Issue Type: Bug
> Affects Versions: 0.8.0, 0.8.1
> Reporter: Ashutosh Chauhan
> Assignee: Ashutosh Chauhan
> Fix For: 0.9.0
>
> Attachments: HIVE-2498.D1185.1.patch, hive-2498.patch,
> hive-2498_1.patch
>
>
> It currently defaults to default case and returns constant value, whereas we
> can do better by getting actual size at runtime.
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