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https://issues.apache.org/jira/browse/FLINK-3770?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15245868#comment-15245868
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Greg Hogan commented on FLINK-3770:
-----------------------------------
Implemented with 85fcfc4d43feddacb76f2d14229229340174fed8
> Fix TriangleEnumerator performance
> ----------------------------------
>
> Key: FLINK-3770
> URL: https://issues.apache.org/jira/browse/FLINK-3770
> Project: Flink
> Issue Type: Improvement
> Components: Gelly
> Affects Versions: 1.1.0
> Reporter: Greg Hogan
> Assignee: Greg Hogan
> Fix For: 1.1.0
>
>
> Triangle enumeration is optimized by grouping edges by the vertex with lesser
> degree. Currently {{TriangleEnumerator}} thinks about this and then ignores
> the reordered edges. Also, since it is known that the vertex list will be
> much smaller than the edge list we can provide a {{JoinHint}}.
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