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https://issues.apache.org/jira/browse/PIG-678?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12922781#action_12922781
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Alan Gates commented on PIG-678:
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It seems like we also need to consider this for JOIN, UNION, CROSS.
> "as" support for group-by
> -------------------------
>
> Key: PIG-678
> URL: https://issues.apache.org/jira/browse/PIG-678
> Project: Pig
> Issue Type: Improvement
> Reporter: Christopher Olston
> Assignee: Alan Gates
> Priority: Minor
> Fix For: 0.9.0
>
>
> I should be able to use "as" with GROUP the same way I use it with LOAD, i.e.
> rename the entire schema. This is especially important b/c the system
> automatically assigns schema names for the output of group that many people
> find unintuitive.
> e.g. this should work:
> grouped = GROUP data BY url AS (url, history);
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