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https://issues.apache.org/jira/browse/APEXMALHAR-2488?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16028010#comment-16028010
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Bhupesh Chawda commented on APEXMALHAR-2488:
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I think we need to deprecate the inner join operator for now.
Even though it is not working right now and is marked evolving, we cannot
blindly remove it from the current master.
> Simplify join support in Malhar
> -------------------------------
>
> Key: APEXMALHAR-2488
> URL: https://issues.apache.org/jira/browse/APEXMALHAR-2488
> Project: Apache Apex Malhar
> Issue Type: Task
> Reporter: Bhupesh Chawda
> Assignee: Bhupesh Chawda
>
> Currently there are multiple join implementations in Malhar.
> One is an inner join implementation based on managed state, and another is a
> merge operator based on the windowed operator and uses spillable data
> structures.
> This JIRA is to remove the inner join implementation from malhar -
> org/apache/apex/malhar/lib/join/
> The merge operator also needs to be simplified - perhaps by providing a
> wrapper around it which can be used without requiring any knowledge of
> windowing concepts. This will be a separate JIRA.
> Discussions here:
> https://lists.apache.org/thread.html/34e5b8753a1ea512eb8ae95af03b7646f23124705fe1c07b069a46c5@%3Cdev.apex.apache.org%3E
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