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https://issues.apache.org/jira/browse/FLINK-2905?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14989264#comment-14989264
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Martin Junghanns commented on FLINK-2905:
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Hi,
this is a good idea. We need to make too many assumptions about what the user
would want. Returning {{NullValue}} as vertex value gives the user more
flexibility. However, I would like to keep the two strategies for the edges and
let (1) be the default way. If this is ok, I would update the code, rebase and
create the PR.
> Add intersect method to Graph class
> -----------------------------------
>
> Key: FLINK-2905
> URL: https://issues.apache.org/jira/browse/FLINK-2905
> Project: Flink
> Issue Type: New Feature
> Components: Gelly
> Affects Versions: 0.10
> Reporter: Martin Junghanns
> Assignee: Martin Junghanns
> Priority: Minor
>
> Currently, the Gelly Graph supports the set operations
> {{Graph.union(otherGraph)}} and {{Graph.difference(otherGraph)}}. It would be
> nice to have a {{Graph.intersect(otherGraph)}} method, where the resulting
> graph contains all vertices and edges contained in both input graphs.
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