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https://issues.apache.org/jira/browse/PIG-683?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Olga Natkovich resolved PIG-683.
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    Resolution: Invalid

We can't change semantics of an existing functions. If users need a different 
interface, they can create another function that suits their needs

> Semantics of TOKENIZE are not clear
> -----------------------------------
>
>                 Key: PIG-683
>                 URL: https://issues.apache.org/jira/browse/PIG-683
>             Project: Pig
>          Issue Type: Bug
>          Components: impl
>    Affects Versions: types_branch
>            Reporter: Santhosh Srinivasan
>             Fix For: types_branch
>
>
> The semantics of TOKENIZE are not clear. In its current form, TOKENIZE takes 
> as input a string and returns a bag. The bag contains 1 tuple per token. The 
> tuple in turn contains a single token. A better approach would be to return a 
> tuple (instead of a bag) that contains as many elements as there are tokens.
> On a secondary note, the outputSchema method in TOKENIZE is broken. It should 
> return a bag with a tuple that contains a string and not just a string.

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