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https://issues.apache.org/jira/browse/PIG-257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12603041#action_12603041
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Pi Song commented on PIG-257:
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For OutputFormat, we may just have to allow Bag of tuple of arity two
> Allow usage of custom Hadoop InputFormat in Pig
> -----------------------------------------------
>
> Key: PIG-257
> URL: https://issues.apache.org/jira/browse/PIG-257
> Project: Pig
> Issue Type: New Feature
> Reporter: Pi Song
>
> This very cool idea sprang out from a discussion in mailing-list (Thanks
> Manish Shah)
> There is a semantic issue that Hadoop Input Format generally expects K,V but
> Pig expects Tuple. We can solve this by sticking K,V as fields in Tuple.
> Provided that we've got rich built-in string/binary manipulation functions,
> Hadoop users shouldn't find it too costly to use Pig. This should definitely
> help accelerate Pig adoption process.
> After a brief look at the current code, this new feature will require changes
> in Map Reduce execution engine so I will wait until the type branch is
> complete before start working on this (If nobody expresses interest in doing
> it :) )
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