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From "Alan Gates (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-162) Rework mapreduce submission and monitoring
Date Mon, 16 Jun 2008 15:07:45 GMT

    [ https://issues.apache.org/jira/browse/PIG-162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12605309#action_12605309
] 

Alan Gates commented on PIG-162:
--------------------------------

We want to pull all the standard aggregate functions into the grammar.  The reason is for
overloading.  We don't have a way right now to overload UDFs by argument type.  But for SUM,
MIN, MAX it will be much more efficient if we can know the type up front (summing a long vs
a float).  So we want to make them native operators.

> Rework mapreduce submission and monitoring
> ------------------------------------------
>
>                 Key: PIG-162
>                 URL: https://issues.apache.org/jira/browse/PIG-162
>             Project: Pig
>          Issue Type: Sub-task
>         Environment: This bug tracks works to rework the submission and monitoring interface
to map reduce as described in  http://wiki.apache.org/pig/PigTypesFunctionalSpec
>            Reporter: Alan Gates
>            Assignee: Alan Gates
>         Attachments: changes.patch, changes1.patch, incr7.patch, incr8.patch, mapreduceJumbo.patch,
mapreduceJumboWithComInc.patch, modJumbo.patch, newChanges.patch, split.png, TEST-org.apache.pig.test.TestMapReduce.txt,
TEST-org.apache.pig.test.TestMRCompiler.txt, TEST-org.apache.pig.test.TestMRCompiler.txt,
TEST-org.apache.pig.test.TestUnion.txt
>
>


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