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Posted to issues@beam.apache.org by "Rui Wang (JIRA)" <ji...@apache.org> on 2019/04/17 21:18:00 UTC

[jira] [Work started] (BEAM-7100) BeamValuesRel should accept empty tuples

     [ https://issues.apache.org/jira/browse/BEAM-7100?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on BEAM-7100 started by Rui Wang.
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> BeamValuesRel should accept empty tuples
> ----------------------------------------
>
>                 Key: BEAM-7100
>                 URL: https://issues.apache.org/jira/browse/BEAM-7100
>             Project: Beam
>          Issue Type: New Feature
>          Components: dsl-sql
>            Reporter: Rui Wang
>            Assignee: Rui Wang
>            Priority: Major
>
> It is possible for a OUTER JOIN, one side of JOIN contains no tuples. Right now such case will thrown an exception with "empty  tuples are not allowed".  However, for OUTER JOIN, empty values on one side can still produce results if another side has tuples.



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