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https://issues.apache.org/jira/browse/PIG-3133?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Dai updated PIG-3133:
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Fix Version/s: (was: 0.12.0)
0.13.0
> Revamp algebraic interface to actually return classes
> -----------------------------------------------------
>
> Key: PIG-3133
> URL: https://issues.apache.org/jira/browse/PIG-3133
> Project: Pig
> Issue Type: Improvement
> Reporter: Jonathan Coveney
> Fix For: 0.13.0
>
>
> The current algebraic interface is a bit weird to work with. It would make a
> lot more sense to let people return Class<? extends EvalFunc<Tuple>> or what
> have you, or even a FuncSpec, but the current string based approach
> circumvents the whole point of using Java and is annoying. I think we should
> have an abstract EFInitial, EFIntermediate, EFFinal which implemented the
> exec function for the user, but in terms of a simpler, clearer interface.
> This way if people really want the old way they can, but we can present them
> something less ugly.
> This would also be a good time to clarify the contracts of Algebraics and
> simplify them (the initial function's "a tuple which contains a bag which
> contains 1 tuple" is super whack).
> If anyone wants to work on this let me know because this is the sort of thing
> I will probably bang out when procrastinating something else.
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