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https://issues.apache.org/jira/browse/PIG-2166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13286317#comment-13286317
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Daniel Dai commented on PIG-2166:
---------------------------------
You need to install IPC::Run module. I usually download it from
http://search.cpan.org/~toddr/IPC-Run-0.91/lib/IPC/Run.pm, build and install it.
> UDFs to join a bag
> ------------------
>
> Key: PIG-2166
> URL: https://issues.apache.org/jira/browse/PIG-2166
> Project: Pig
> Issue Type: Improvement
> Reporter: Daniel Dai
> Assignee: Hien Luu
> Priority: Minor
> Labels: newbie, simple
> Attachments: bagtotuplestring.diff
>
>
> Get several request for a UDF to flatten a bag. Seems reasonable to create
> one in builtin:
> 1. BagToTuple: {(a),(b),(c)} -> (a,b,c)
> 2. BagToString(delimit="_"): {(a),(b),(c) -> "a_b_c"
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