[
https://issues.apache.org/jira/browse/BEAM-7049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16903422#comment-16903422
]
sridhar Reddy commented on BEAM-7049:
-------------------------------------
[~amaliujia] Thanks for the update. I think I understand the issue and the
solution. I may contact you with further questions or an update early next
week.
> Merge multiple input to one BeamUnionRel
> ----------------------------------------
>
> Key: BEAM-7049
> URL: https://issues.apache.org/jira/browse/BEAM-7049
> Project: Beam
> Issue Type: Improvement
> Components: dsl-sql
> Reporter: Rui Wang
> Assignee: sridhar Reddy
> Priority: Major
>
> BeamUnionRel assumes inputs are two and rejects more. So `a UNION b UNION c`
> will have to be created as UNION(a, UNION(b, c)) and have two shuffles. If
> BeamUnionRel can handle multiple shuffles, we will have only one shuffle
--
This message was sent by Atlassian JIRA
(v7.6.14#76016)
