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https://issues.apache.org/jira/browse/PHOENIX-1179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14211924#comment-14211924
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James Taylor commented on PHOENIX-1179:
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+1. Adding the above as code comments at commit time would be good.
> Support many-to-many joins
> --------------------------
>
> Key: PHOENIX-1179
> URL: https://issues.apache.org/jira/browse/PHOENIX-1179
> Project: Phoenix
> Issue Type: Sub-task
> Reporter: James Taylor
> Assignee: Maryann Xue
> Fix For: 3.0.0, 4.0.0, 5.0.0
>
> Attachments: 1179.patch
>
>
> Enhance our join capabilities to support many-to-many joins where the size of
> both sides of the join are too big to fit into memory (and thus cannot use
> our hash join mechanism). One technique would be to order both sides of the
> join by their join key and merge sort the results on the client.
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