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Posted to dev@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2016/07/29 00:13:20 UTC

[jira] [Created] (HIVE-14378) Data size may be estimated as 0 if no columns are being projected after an operator

Ashutosh Chauhan created HIVE-14378:
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             Summary: 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


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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