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From "Yan Zhou (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-1309) Map-side Cogroup
Date Thu, 08 Apr 2010 16:47:36 GMT

    [ https://issues.apache.org/jira/browse/PIG-1309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12854993#action_12854993
] 

Yan Zhou commented on PIG-1309:
-------------------------------

Zebra's test case for this feature needs to be added to the 0.7 branch if and when this feature
is to be supported therein. I have created a JIRA, PIG-1367,  for tracking this addition should
it become necessary. The test case is actually part of the patch for PIG-1315 that is committed
as whole to the trunk but committed to the 0.7 branch without that test case.

> Map-side Cogroup
> ----------------
>
>                 Key: PIG-1309
>                 URL: https://issues.apache.org/jira/browse/PIG-1309
>             Project: Pig
>          Issue Type: Bug
>          Components: impl
>            Reporter: Ashutosh Chauhan
>            Assignee: Ashutosh Chauhan
>         Attachments: mapsideCogrp.patch, pig-1309_1.patch, pig-1309_2.patch
>
>
> In never ending quest to make Pig go faster, we want to parallelize as many relational
operations as possible. Its already possible to do Group-by( PIG-984 ) and Joins( PIG-845
, PIG-554 ) purely in map-side in Pig. This jira is to add map-side implementation of Cogroup
in Pig. Details to follow.

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