Filter function for IsTupleInBag and IsTupleInTuple
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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
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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