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https://issues.apache.org/jira/browse/PIG-1357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12854732#action_12854732
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Chao Wang commented on PIG-1357:
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+1
> [zebra] Test cases of map-side GROUP-BY should be added.
> --------------------------------------------------------
>
> Key: PIG-1357
> URL: https://issues.apache.org/jira/browse/PIG-1357
> Project: Pig
> Issue Type: Test
> Affects Versions: 0.7.0
> Reporter: Yan Zhou
> Priority: Minor
> Fix For: 0.7.0
>
> Attachments: PIG-1357.patch
>
>
> The global sorted input splits for this feature to work properly. Prior to
> 0.7, all sorted input splits are globally sorted at the LOAD call on sorted
> table. But with the support of locally sorted input splits, PIG-1306 and
> PIG-1315, the globally sorted input splits need to be asked for by PIG
> explicitly. So this creates separate call paths for all PIG feature that
> require map-side-only ops. Currently there are two PIG features that require
> globally sorted input splits from Zebra: map-side COGROUP and map-side
> GROUP-BY. PIG-1315 will contain test cases for the former; while this JIRA
> will cover the latter.
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