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From "Pi Song (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-202) ComparatorFunc provided to ORDER clause is not always honoured
Date Sun, 20 Apr 2008 14:24:21 GMT

    [ https://issues.apache.org/jira/browse/PIG-202?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12590767#action_12590767

Pi Song commented on PIG-202:


Ensuring all the specs instantiating what needed before use using a visitor pattern is a good
idea but just to make the code clean we should remove code where those stuffs were previously
instantiated as well.

For the MapreducePlanCompiler thing, you've got very good eyes. Now I also tempted to add
that comparator instantiation. Can you prove that at the moment the quantilejob doesn't really
sort based on the given function? Possibly a small unit test would be enough.

In regard to the test, currently we only test either MapReduce or Local at a time. That's
why a bug such like this still occurs. In the mean time, I think you should send an email
to the mailing list so we can find a global solution for all the tests together.

PS. Could you please combine all the needed patches? Too many fragments will make it difficult
for our already busy committers. 

> ComparatorFunc provided to ORDER clause is not always honoured
> --------------------------------------------------------------
>                 Key: PIG-202
>                 URL: https://issues.apache.org/jira/browse/PIG-202
>             Project: Pig
>          Issue Type: Bug
>            Reporter: Mathieu Poumeyrol
>         Attachments: EvalSpec.patch, InstantiateFunc.patch, MapreducePlanCompiler.patch,
> Specifying a comparator function is acknowledge neither by local implementation, nor
by quartile lookup job.
> Patch coming soon.

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