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Martin Junghanns commented on FLINK-2905: ----------------------------------------- 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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)