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https://issues.apache.org/jira/browse/BEAM-9825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17130035#comment-17130035
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Beam JIRA Bot commented on BEAM-9825:
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This issue is assigned but has not received an update in 30 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> Transforms for Intersect, IntersectAll, Except, ExceptAll, Union, UnionAll
> --------------------------------------------------------------------------
>
> Key: BEAM-9825
> URL: https://issues.apache.org/jira/browse/BEAM-9825
> Project: Beam
> Issue Type: New Feature
> Components: sdk-java-core
> Reporter: Darshan Jani
> Assignee: Darshan Jani
> Priority: P2
> Labels: stale-assigned
> Original Estimate: 96h
> Time Spent: 11.5h
> Remaining Estimate: 84.5h
>
> I'd like to propose following new high-level transforms.
> * Intersect
> Compute the intersection between elements of two PCollection.
> Given _leftCollection_ and _rightCollection_, this transform returns a
> collection containing elements that common to both _leftCollection_ and
> _rightCollection_
>
> * Except
> Compute the difference between elements of two PCollection.
> Given _leftCollection_ and _rightCollection_, this transform returns a
> collection containing elements that are in _leftCollection_ but not in
> _rightCollection_
> * Union
> Find the elements that are either of two PCollection.
> Implement IntersetAll, ExceptAll and UnionAll variants of transforms.
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