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https://issues.apache.org/jira/browse/PIG-4840?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rohini Palaniswamy updated PIG-4840:
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Resolution: Fixed
Hadoop Flags: Reviewed
Status: Resolved (was: Patch Available)
Committed to trunk. Thanks for the review Daniel.
> Do not turn off UnionOptimizer for unsupported storefuncs in case of no
> vertex groups
> -------------------------------------------------------------------------------------
>
> Key: PIG-4840
> URL: https://issues.apache.org/jira/browse/PIG-4840
> Project: Pig
> Issue Type: Improvement
> Reporter: Rohini Palaniswamy
> Assignee: Rohini Palaniswamy
> Fix For: 0.16.0
>
> Attachments: PIG-4840-1.patch
>
>
> We turn of UnionOptimizer for unsupported storefuncs as writing from two
> vertices may overwrite data. But in the case where there is only one unique
> union member we don't create vertex groups and merge the union operators into
> the Split vertex, we can turn it on.
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