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Posted to issues@drill.apache.org by "Sean Hsuan-Yi Chu (JIRA)" <ji...@apache.org> on 2016/05/04 16:31:13 UTC
[jira] [Comment Edited] (DRILL-4476) Enhance Union-All operator for
dealing with empty left input or empty both inputs
[ https://issues.apache.org/jira/browse/DRILL-4476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15270943#comment-15270943 ]
Sean Hsuan-Yi Chu edited comment on DRILL-4476 at 5/4/16 4:30 PM:
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The change in UnionAllRecordBatch in DRILL-2288 is related to this JIRA.
was (Author: seanhychu):
The change in UnionAllRecordBatch is related.
> 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
> Fix For: 1.7.0
>
>
> 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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