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Posted to dev@pig.apache.org by "Rohini Palaniswamy (JIRA)" <ji...@apache.org> on 2016/03/21 21:40:26 UTC

[jira] [Updated] (PIG-4840) Do not turn off UnionOptimizer for unsupported storefuncs in case of no vertex groups

     [ https://issues.apache.org/jira/browse/PIG-4840?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rohini Palaniswamy updated PIG-4840:
------------------------------------
    Status: Patch Available  (was: Open)

> 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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