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https://issues.apache.org/jira/browse/PIG-3585?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cheolsoo Park updated PIG-3585:
-------------------------------
Description:
Unlike MR, union needs to be implemented as multiple vertices because Tez
doesn't allow multiple inputs in root vertex.
I propose that we implement union by connecting load vertices to union vertex
with broadcasting edges.
Summary: Make union work with tez (was: Add e2e tests for SAMPLE and
UNION)
> Make union work with tez
> ------------------------
>
> Key: PIG-3585
> URL: https://issues.apache.org/jira/browse/PIG-3585
> Project: Pig
> Issue Type: Sub-task
> Components: tez
> Affects Versions: tez-branch
> Reporter: Cheolsoo Park
> Assignee: Cheolsoo Park
> Fix For: tez-branch
>
>
> Unlike MR, union needs to be implemented as multiple vertices because Tez
> doesn't allow multiple inputs in root vertex.
> I propose that we implement union by connecting load vertices to union vertex
> with broadcasting edges.
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