[
https://issues.apache.org/jira/browse/BEAM-7049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16946252#comment-16946252
]
sridhar Reddy commented on BEAM-7049:
-------------------------------------
Thank you for the update.
re: Infinite Loop. I encountered something similar where the inputs switch
positions and the execution goes into an infinite loop when I tried to code a
merge rule using a UnionMergeRule as a template.
> 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
> Time Spent: 1h
> Remaining Estimate: 0h
>
> 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
(v8.3.4#803005)
