[jira] [Commented] (PIG-2531) Filter function for IsTupleInBag and IsTupleInTuple

["David Ongaro (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PIG-2531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15987817#comment-15987817 ] 

David Ongaro commented on PIG-2531:
-----------------------------------

Any progress on this?

> Filter function for IsTupleInBag and IsTupleInTuple
> ---------------------------------------------------
>
>                 Key: PIG-2531
>                 URL: https://issues.apache.org/jira/browse/PIG-2531
>             Project: Pig
>          Issue Type: New Feature
>          Components: piggybank
>    Affects Versions: 0.9.1
>            Reporter: Florian Leibert (flo)
>            Priority: Minor
>         Attachments: PIG-2531.patch
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> It would be nice to have a FilterFunc that allows to filter based on a tuple in the stream being part of either another tuple of a bag. 
> Data (e.g. session data joined with e.g. follow-up sessions where)
> > BAG: {('/login'), ('/show'), ('/logout?user_id=2000')}, TUPLE: ('/logout?user_id=2000')
> > BAG: {('/home'), ('/about')}, TUPLE: ('/admin')
> > BAG: {('login')}, TUPLE: ('/logout')
> It would be great to be able to filter filter based on criteria <B1 CONTAINS  T1> or <T1 CONTAINS T2>. In the above case, the only result of such an operation would be the first entry '/logout?user_id=2000' - it should be obvious that this is useful.



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