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From "Ashutosh Chauhan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-14378) Data size may be estimated as 0 if no columns are being projected after an operator
Date Mon, 01 Aug 2016 05:41:20 GMT

     [ https://issues.apache.org/jira/browse/HIVE-14378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ashutosh Chauhan updated HIVE-14378:
------------------------------------
    Status: Patch Available  (was: Open)

> 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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