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From "Sean Hsuan-Yi Chu (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (DRILL-4476) Enhance Union-All operator for dealing with empty left input or empty both inputs
Date Sun, 13 Mar 2016 18:44:33 GMT

     [ https://issues.apache.org/jira/browse/DRILL-4476?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sean Hsuan-Yi Chu resolved DRILL-4476.
--------------------------------------
    Resolution: Fixed

Fixed in commit#: b979bebe83d7017880b0763adcbf8eb80acfcee8

> Enhance Union-All operator for dealing with empty left input or empty both inputs
> ---------------------------------------------------------------------------------
>
>                 Key: DRILL-4476
>                 URL: https://issues.apache.org/jira/browse/DRILL-4476
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Execution - Relational Operators
>            Reporter: Sean Hsuan-Yi Chu
>            Assignee: Sean Hsuan-Yi Chu
>
> Union-All operator does not deal with the situation where left side comes from empty
source.
> Due to DRILL-2288's enhancement for empty sources, Union-All operator now can be allowed
to support this scenario.



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