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Posted to issues@beam.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2019/04/17 21:30:00 UTC
[jira] [Work logged] (BEAM-7100) BeamValuesRel should accept empty
tuples
[ https://issues.apache.org/jira/browse/BEAM-7100?focusedWorklogId=229403&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-229403 ]
ASF GitHub Bot logged work on BEAM-7100:
----------------------------------------
Author: ASF GitHub Bot
Created on: 17/Apr/19 21:29
Start Date: 17/Apr/19 21:29
Worklog Time Spent: 10m
Work Description: amaliujia commented on pull request #8339: [BEAM-7100] BeamValuesRel should accept empty tuples
URL: https://github.com/apache/beam/pull/8339
It is possible for a OUTER JOIN, one side of JOIN contains no tuples, such that Calcite will convert that empty side to a BeamValuesRel with empty 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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Issue Time Tracking
-------------------
Worklog Id: (was: 229403)
Time Spent: 10m
Remaining Estimate: 0h
> BeamValuesRel should accept empty tuples
> ----------------------------------------
>
> Key: BEAM-7100
> URL: https://issues.apache.org/jira/browse/BEAM-7100
> Project: Beam
> Issue Type: Bug
> Components: dsl-sql
> Reporter: Rui Wang
> Assignee: Rui Wang
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> 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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