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https://issues.apache.org/jira/browse/IMPALA-2138?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong updated IMPALA-2138:
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Attachment: performance_result.txt
> Get rid of unused columns by upstream operators at
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https://issues.apache.org/jira/browse/IMPALA-2138?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong updated IMPALA-2138:
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Priority: Major (was: Critical)
> Get rid of unused columns by upstream operators at points
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https://issues.apache.org/jira/browse/IMPALA-2138?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong updated IMPALA-2138:
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Attachment: 0001-Projection-prototype.patch
> Get rid of unused columns by upstream operators