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https://issues.apache.org/jira/browse/PIG-2163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13093212#comment-13093212
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Daniel Dai commented on PIG-2163:
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Yes, and usually we stream the last relation as we did in join. So assume the
last relation is a large one, user can optimize to make use of it.
> Improve nested cross to stream one relation
> -------------------------------------------
>
> Key: PIG-2163
> URL: https://issues.apache.org/jira/browse/PIG-2163
> Project: Pig
> Issue Type: Improvement
> Components: impl
> Affects Versions: 0.10
> Reporter: Daniel Dai
> Assignee: Zhijie Shen
> Fix For: 0.10
>
>
> PIG-1916 added nested cross support for PIG. One optimization is instead of
> materialize all bags before producing result, we can stream one of the input
> to save on memory.
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