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https://issues.apache.org/jira/browse/HIVE-14378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ashutosh Chauhan updated HIVE-14378:
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Attachment: HIVE-14378.2.patch
> Data size may be estimated as 0 if no columns are being projected after an
> operator
> -----------------------------------------------------------------------------------
>
> Key: HIVE-14378
> URL: https://issues.apache.org/jira/browse/HIVE-14378
> Project: Hive
> Issue Type: Bug
> Components: Physical Optimizer, Statistics
> Reporter: Ashutosh Chauhan
> Assignee: Ashutosh Chauhan
> Attachments: HIVE-14378.2.patch, HIVE-14378.patch
>
>
> in those cases we still emit rows.. but they may not have any columns within
> it. We shouldn't estimate 0 data size in such cases.
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