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Posted to issues@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2016/08/01 05:40:20 UTC
[jira] [Updated] (HIVE-14378) Data size may be estimated as 0 if no
columns are being projected after an operator
[ https://issues.apache.org/jira/browse/HIVE-14378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ashutosh Chauhan updated HIVE-14378:
------------------------------------
Status: Open (was: Patch Available)
> 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.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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